Search PBS Space Time

What are you looking for?

	2022-12-08: How Are Quasiparticles Different From Particles? 11:15: ... of a phonon, mixed up and indistinguishable from all the other crazy oscillations across the ... 12:24: ... a network of cooper pairs move together in the mutually induced resonant oscillation of the metal lattice An amazing thing about Cooper pairs is that they ... 11:15: ... of a phonon, mixed up and indistinguishable from all the other crazy oscillations across the ...
	2022-08-03: What Happens Inside a Proton? 07:07: ... about that fact previously. Real particles  are sustained oscillations in a quantum field   that have real energy and consistent ...
	2022-04-27: How the Higgs Mechanism Give Things Mass 02:50: ... That gauge field turns out to be  electromagnetism, and oscillations in   this field are the photon - our first gauge  boson ... 09:59: ... Oscillations in that field would be a gauge  boson. You can think about those ... 13:58: ... of all, we see that the Goldstone bosons,  which are just oscillations in the theta angle,   can be absorbed into this U(1) ... 02:50: ... That gauge field turns out to be  electromagnetism, and oscillations in   this field are the photon - our first gauge  boson ... 09:59: ... Oscillations in that field would be a gauge  boson. You can think about those ... 13:58: ... of all, we see that the Goldstone bosons,  which are just oscillations in the theta angle,   can be absorbed into this U(1) ... 09:59: ... in that field would be a gauge  boson. You can think about those oscillations as   the theta angle twirling around freely, and it  doesn’t need any ... 02:50: ... That gauge field turns out to be  electromagnetism, and oscillations in   this field are the photon - our first gauge  boson and carrier of ... 07:33: ... of this field are just oscillations  of the field strength across the lowest point,   where the ...
	2022-02-23: Are Cosmic Strings Cracks in the Universe? 00:58: ... The field at any point can oscillate around that value, and those oscillations can have   quantized energy states. These vibrations can ... 10:09: ... should be emitted in beams in the direction of   oscillation of the string, so we might see flashes  as these beams pass over ... 00:58: ... The field at any point can oscillate around that value, and those oscillations can have   quantized energy states. These vibrations can ...
	2021-11-17: Are Black Holes Actually Fuzzballs? 05:52: ... string theory, all elementary particles are oscillations in 1-dimensional strands that themselves are embedded within complex, ...
	2021-08-18: How Vacuum Decay Would Destroy The Universe 01:31: ... to its neighboring rings, and so it can transfer its oscillations, causing a wave to propagate   through space. And there are ... 06:08: ... their   adjacent points across space, which is why  their oscillations propagate as particles.   Now this isn’t necessarily an ... 01:31: ... modes of oscillation. And each quantum field   - each type of oscillation - has a corresponding particle - that’s the oscillation ... 06:08: ... their   adjacent points across space, which is why  their oscillations propagate as particles.   Now this isn’t necessarily an ... 01:31: ... to its neighboring rings, and so it can transfer its oscillations, causing a wave to propagate   through space. And there are other ways ... 06:08: ... their   adjacent points across space, which is why  their oscillations propagate as particles.   Now this isn’t necessarily an instant ...
	2021-08-10: How to Communicate Across the Quantum Multiverse 04:30: ... state after being stretched or displaced, because that can produce an oscillation, and in which adjacent points pull on each other, cause that can cause ... 05:21: ... the displacement at each point. That’s the case for the most idealized oscillation - the simple harmonic oscillator. And that tends to be a good ...
	2021-07-13: Where Are The Worlds In Many Worlds? 03:46: Where a pond ripple is an oscillation in surface height, the wavefunction is an oscillation in probability, or more accurately probability density.
	2021-03-16: The NEW Crisis in Cosmology 10:08: ... of galaxies that formed from that matter. The Baryon acoustic oscillations seem   to be coming on the side of the Planck  result - a ...
	2021-03-09: How Does Gravity Affect Light? 07:40: The idea is that any wave can be described as an infinite number of point-like oscillations, each of which produces new waves.
	2021-02-17: Gravitational Wave Background Discovered? 00:00: ... colossal gravitational waves must also exist waves whose single oscillations span the solar system or even the distance to the nearest stars such ...
	2021-01-26: Is Dark Matter Made of Particles? 12:03: ... business across the universe - interacting by dark forces, all of them oscillations in their own dark quantum fields - perhaps with their own complexity and ...
	2020-11-04: Electroweak Theory and the Origin of the Fundamental Forces 08:16: The bosons of the version of SU(2) that I just described are simple light-speed oscillations in their fields, just like photons.
	2020-05-27: Does Gravity Require Extra Dimensions? 10:28: In some cases, rotating masses produce oscillations in the torsion pendulum.
	2020-02-18: Does Consciousness Influence Quantum Mechanics? 15:37: ... it's a dip in energy, the field can oscillate within that dip - and that oscillation is our axion particle if you also assume quantized energy ...
	2020-02-11: Are Axions Dark Matter? 06:54: ... you might recall that in quantum field theory a particle is just an oscillation in a quantum field. So with a new field - this theta field - we have the ...
	2020-01-06: How To Detect a Neutrino 01:51: ♪ ♪ ♪ ♪ Measuring neutrino oscillations is a big part of how we unlock their secrets, but it's not easy. 02:16: ... 𝘭𝘪𝘨𝘩𝘵 𝘳𝘩𝘺𝘵𝘩𝘮𝘪𝘤 𝘨𝘶𝘪𝘵𝘢𝘳 𝘱𝘪𝘤𝘬𝘪𝘯𝘨)♪ (title) "MINOS: Main Injector Neutrino Oscillation Search" ♪ (𝘭𝘪𝘨𝘩𝘵 𝘳𝘩𝘺𝘵𝘩𝘮𝘪𝘤 𝘨𝘶𝘪𝘵𝘢𝘳 𝘱𝘪𝘤𝘬𝘪𝘯𝘨) ♪ MATT: The weakly ... 05:58: ... the particles ♪ ♪ From those paths, we can learn all about the neutrino oscillation, ♪ ♪ and that includes the flavour of the neutrino that caused it - be it ... 06:15: ... ♪ ♪ so if we detect a tau or electron neutrino, then we've seen neutrino oscillation. ... 06:24: ♪ ♪ We can use our measurement to determine how much oscillation has occurred. 02:16: ... 𝘭𝘪𝘨𝘩𝘵 𝘳𝘩𝘺𝘵𝘩𝘮𝘪𝘤 𝘨𝘶𝘪𝘵𝘢𝘳 𝘱𝘪𝘤𝘬𝘪𝘯𝘨)♪ (title) "MINOS: Main Injector Neutrino Oscillation Search" ♪ (𝘭𝘪𝘨𝘩𝘵 𝘳𝘩𝘺𝘵𝘩𝘮𝘪𝘤 𝘨𝘶𝘪𝘵𝘢𝘳 𝘱𝘪𝘤𝘬𝘪𝘯𝘨) ♪ MATT: The weakly interacting nature ... 01:51: ♪ ♪ ♪ ♪ Measuring neutrino oscillations is a big part of how we unlock their secrets, but it's not easy.
	2019-12-09: The Doomsday Argument 16:21: ... in passing that is worth repeating: that is that the baryon acoustic oscillation signatures seen in galaxy clusters are an independent measure of ...
	2019-11-11: Does Life Need a Multiverse to Exist? 09:04: ... quantum fields, which fill all of space and whose oscillations produce the familiar particles of matter or radiation, were expected to ...
	2019-10-07: Black Hole Harmonics 03:46: The harmonic oscillations of 2-D surfaces – like drum skins, bells, or the event horizons of black holes – are a good bit more complex than in 1-D. 03:56: In the case of the event horizon, or any spherical-ish surface, we break down the oscillations not into sine waves but into spherical harmonics. 04:05: ... of a sphere, and each spherical harmonic can represent a single, pure oscillation on that spherical surface with a set ... 04:19: A harmonic oscillation that decays over time is called a quasinormal mode. 04:49: Well, we can answer that be asking what harmonics are present in that oscillation, and how quickly do each of those harmonics fade away. 05:08: ... that right after merger the black hole would be too chaotic – the oscillations should be “non-linear” or in other words not well represented by adding ... 06:34: ... the waveform was nicely simulated by spherical harmonic oscillations right from the point of merger, so it was not the chaotic mess ... 09:24: ... the nature of the final black hole properties is embedded in those final oscillations. ... 10:08: ... so mass and spin should define everything – including the nature of the oscillations during ... 10:19: ... test the no-hair theorem by checking whether the frequency of oscillations and the time for the decay of those oscillations agrees perfectly with ... 10:34: The oscillations are consistent with a black hole purely defined by its mass and spin. 03:46: The harmonic oscillations of 2-D surfaces – like drum skins, bells, or the event horizons of black holes – are a good bit more complex than in 1-D. 03:56: In the case of the event horizon, or any spherical-ish surface, we break down the oscillations not into sine waves but into spherical harmonics. 05:08: ... that right after merger the black hole would be too chaotic – the oscillations should be “non-linear” or in other words not well represented by adding ... 06:34: ... the waveform was nicely simulated by spherical harmonic oscillations right from the point of merger, so it was not the chaotic mess ... 09:24: ... the nature of the final black hole properties is embedded in those final oscillations. ... 10:08: ... so mass and spin should define everything – including the nature of the oscillations during ... 10:19: ... test the no-hair theorem by checking whether the frequency of oscillations and the time for the decay of those oscillations agrees perfectly with ... 10:34: The oscillations are consistent with a black hole purely defined by its mass and spin. 10:19: ... the frequency of oscillations and the time for the decay of those oscillations agrees perfectly with Einstein’s ...
	2019-08-06: What Caused the Big Bang? 05:22: ... the way, an elementary particle is just an oscillation in this field strength - a little packet of energy held by the field. If ...
	2019-03-28: Could the Universe End by Tearing Apart Every Atom? 10:58: ... the patterns of the Cosmic Microwave Background, in the baryon acoustic oscillations and in supernovae - We've talked about all of these thing ...
	2019-03-06: The Impossibility of Perpetual Motion Machines 15:07: ... took long enough that the patterns of the baryon acoustic oscillations frozen into both the CMB and in galaxy rings were blurred out quite a ...
	2019-02-20: Secrets of the Cosmic Microwave Background 01:47: ... explored these baryon acoustic oscillations in the last week's episode and that's really worth watching first if you ... 02:05: ... in and out of their over-dense regions They oscillated And the number of oscillations depended on how large that over-density was In some places the ... 07:42: ... use of the second peak we need to use an analogy We can think of these oscillations as being like heavy masses attached to a spring Release the mass then it ... 14:23: ... In our previous episode we started our discussion of the baryon-acoustic oscillation the actual source or our CMB power spectrum Let's see what you guys had ... 01:47: ... explored these baryon acoustic oscillations in the last week's episode and that's really worth watching first if you ... 02:05: ... in and out of their over-dense regions They oscillated And the number of oscillations depended on how large that over-density was In some places the ... 07:42: ... use of the second peak we need to use an analogy We can think of these oscillations as being like heavy masses attached to a spring Release the mass then it ... 14:23: ... say flux_capacitor and Marcus Kunrath point out that the baryon-acoustic oscillations should have produced bubbles, spheres rather than rings on the sky ... 02:05: ... spread out we call that second one maximum rarefaction These particular oscillations defined the most obvious spots on the CMB map because they were frozen in their ...
	2019-02-07: Sound Waves from the Beginning of Time 00:22: These are the Baryon Acoustic Oscillations (BAO), and they may hold the key to understanding the nature of dark energy. 01:15: Today, we'll talk about another measurement that may help resolve this crisis: The baryon acoustic oscillations. 07:47: Density everywhere oscillated with a rate of oscillation depending on the size of the initial fluctuation. 07:54: ... are the oscillations in the baryon acoustic oscillations, and the complex signature of that ... 10:36: ... baryon acoustic oscillations signal was first spotted in 2005 by the Sloan Digital Sky Survey in the ... 11:19: It requires an independent test of the expansion history. Enter the baryon acoustic oscillations. 12:06: The baryon acoustic oscillations agree with and confirm what we measure using supernovae distances- The expansion of the universe is accelerating. 07:47: Density everywhere oscillated with a rate of oscillation depending on the size of the initial fluctuation. 00:22: These are the Baryon Acoustic Oscillations (BAO), and they may hold the key to understanding the nature of dark energy. 01:15: Today, we'll talk about another measurement that may help resolve this crisis: The baryon acoustic oscillations. 07:54: ... are the oscillations in the baryon acoustic oscillations, and the complex signature of that ... 10:36: ... baryon acoustic oscillations signal was first spotted in 2005 by the Sloan Digital Sky Survey in the ... 11:19: It requires an independent test of the expansion history. Enter the baryon acoustic oscillations. 12:06: The baryon acoustic oscillations agree with and confirm what we measure using supernovae distances- The expansion of the universe is accelerating. 00:22: These are the Baryon Acoustic Oscillations (BAO), and they may hold the key to understanding the nature of dark energy. 10:36: ... baryon acoustic oscillations signal was first spotted in 2005 by the Sloan Digital Sky Survey in the ...
	2019-01-24: The Crisis in Cosmology 08:13: These counteractive forces produced oscillations,... 08:20: These are the baryon acoustic oscillations,... 08:36: And so those oscillations stopped. 08:38: The state of the oscillations at the moment of that release... 08:55: ...tells us which oscillation modes... 08:13: These counteractive forces produced oscillations,... 08:20: These are the baryon acoustic oscillations,... 08:36: And so those oscillations stopped. 08:38: The state of the oscillations at the moment of that release... 08:36: And so those oscillations stopped.
	2019-01-09: Are Dark Matter And Dark Energy The Same? 09:49: But there’s no real oscillation.
	2018-11-21: 'Oumuamua Is Not Aliens 14:19: What changes is neutrino oscillations. 14:31: The rate of oscillation depends on the tiny mass of the neutrino. 14:47: This in turn changes the probabilities of oscillation and suppresses oscillations to tau neutrinos. 14:31: The rate of oscillation depends on the tiny mass of the neutrino. 14:19: What changes is neutrino oscillations. 14:47: This in turn changes the probabilities of oscillation and suppresses oscillations to tau neutrinos.
	2018-11-07: Why String Theory is Right 11:28: So, with our quantized equations of motion in hand, you can predict the quantum oscillations of our string.
	2018-10-18: What are the Strings in String Theory? 03:51: In fact, what if all force-carrying particles result from oscillations in tiny strings?
	2018-10-10: Computing a Universe Simulation 01:04: ... interact with their neighbors by a simple set of rules, leading to oscillations, elementary particles, atoms, and ultimately to all of the emergent laws ...
	2018-08-15: Quantum Theory's Most Incredible Prediction 06:35: It seethes with a faint quantum buzz, infinite phantom oscillations that add infinite complication to any electromagnetic interaction.
	2018-07-11: Quantum Invariance & The Origin of The Standard Model 03:40: The function is an oscillation in quantum possibility, moving through space and time. 04:03: Phase is just the wave's current state in its up-down oscillation. 09:13: ... like considering its internal or self energy and allowing quantized oscillations in the field ... 09:23: Those oscillations in our new electromagnetic field turn out to be the photon. 10:02: ... symmetries are called gauge fields, and they all have their associated oscillations, their associated ... 09:13: ... like considering its internal or self energy and allowing quantized oscillations in the field ... 09:23: Those oscillations in our new electromagnetic field turn out to be the photon. 10:02: ... symmetries are called gauge fields, and they all have their associated oscillations, their associated ...
	2018-07-04: Will A New Neutrino Change The Standard Model? 04:55: That oscillation is what gives these particles their mass. 06:28: Now, we know that neutrinos have mass due to a completely different type of oscillation. 07:52: According to the standard model, that oscillation should be extremely rare over the very tiny distance of the neutrino beam. 08:07: But one way to speed up that transition is to introduce sterile neutrinos as an intermediate step in the oscillation.
	2018-05-16: Noether's Theorem and The Symmetries of Reality 07:45: ... can rotate the complex phase of an oscillation in a quantum field by any amount, and the observable properties of that ...
	2018-04-18: Using Stars to See Gravitational Waves 07:38: If a gravitation wave frequency matches the natural resonant frequency of a star, oscillations can be set up inside the star.
	2018-01-17: Horizon Radiation 02:45: That oscillation can be distributed over some region of space, representing the possible positions of the particle. 04:31: Now imagine an oscillation in any one of these locations. 04:57: The equations we write to describe the oscillations are coupled to each other. 05:03: This coupling allows the oscillation-- the particle to evolve through space. 05:08: But it also makes it devilishly difficult to solve those equations because the individual oscillations in space can't be solved independently. 06:13: ... in momentum space, that single, perfectly localized position oscillation can also be described as an infinite number of unlocalized momentum ... 06:31: ... we add these momentum oscillations together with the right weightings, they cancel out everywhere except at ... 06:59: Now it starts out with no oscillations, analogous to the vacuum state in quantum field theory. 07:06: If we were to make an excitation at a particular spot-- make a particle, we hit that spot with a drumstick and set the oscillation going. 07:21: ... could, in principle, make the same oscillation by simultaneously hitting the drum everywhere with an infinite ... 07:48: Those momentum oscillations have two important qualities. 08:05: Dealing with uncoupled equations allows you to add and subtract oscillations without affecting the neighboring momenta. 08:12: However, changing the momentum modes does affect the superposition-- the sum of all oscillations, for example, by creating or destroying particles. 08:22: OK, so a single particle can be described as many oscillations in momentum space. 08:28: ... oscillations can be reconfigured with our infinite drumstick to add new particles or ... 08:51: ... of particles, one at a time, by changing the number of particles or oscillations in each momentum ... 10:01: For example, we no longer have access to part of the skin, and oscillations can reflect from the boundary. 11:04: So you can be that horizon's drum skin to produce oscillations that are consistent with the infinite, un-horizoned skin. 11:13: But doing so leaves additional oscillations. 13:32: The frequency spectra for resonant oscillations of several stars were shifted to a range audible to human hearing. 04:57: The equations we write to describe the oscillations are coupled to each other. 05:08: But it also makes it devilishly difficult to solve those equations because the individual oscillations in space can't be solved independently. 06:13: ... can also be described as an infinite number of unlocalized momentum oscillations. ... 06:31: ... we add these momentum oscillations together with the right weightings, they cancel out everywhere except at ... 06:59: Now it starts out with no oscillations, analogous to the vacuum state in quantum field theory. 07:48: Those momentum oscillations have two important qualities. 08:05: Dealing with uncoupled equations allows you to add and subtract oscillations without affecting the neighboring momenta. 08:12: However, changing the momentum modes does affect the superposition-- the sum of all oscillations, for example, by creating or destroying particles. 08:22: OK, so a single particle can be described as many oscillations in momentum space. 08:28: ... oscillations can be reconfigured with our infinite drumstick to add new particles or ... 08:51: ... of particles, one at a time, by changing the number of particles or oscillations in each momentum ... 10:01: For example, we no longer have access to part of the skin, and oscillations can reflect from the boundary. 11:04: So you can be that horizon's drum skin to produce oscillations that are consistent with the infinite, un-horizoned skin. 11:13: But doing so leaves additional oscillations. 13:32: The frequency spectra for resonant oscillations of several stars were shifted to a range audible to human hearing. 06:59: Now it starts out with no oscillations, analogous to the vacuum state in quantum field theory.
	2018-01-10: What Do Stars Sound Like? 01:33: ... waves reflect around the stellar interior, setting up global oscillations, natural resonant frequencies that carry information about stars ... 01:54: The fast-growing field of asteroseismology uses these oscillations to probe the interiors of the distant stars. 03:58: These p-mode oscillations follow the rules of spherical harmonics, taking the form of regular patterns of density oscillations throughout the star. 04:21: The strongest oscillations in the sun are in the two to four millihertz range. 04:26: These are the sun's 5-minute oscillations. 04:31: Well, for the sun, we can map these oscillations in two ways-- changes in brightness and changes in velocity. 04:38: Brightness of spectral lines in the sun's atmosphere can change by around one part per million over the course of an oscillation. 04:45: At the same time, gas moves vertically in and out during the same oscillation, reaching velocities of 0.1 meters per second. 04:57: And because many different modes overlap, the complex overlapping effects of these oscillations are separated using Fourier analysis. 05:13: ... short, the many overlapping modes form complex oscillations on the surface of the star, but these can be deconstructed into simple ... 06:51: They're too far away to resolve their surfaces, so we only see the global effects of their oscillations. 08:56: We're only now learning to decipher the complex overlay of tones in stellar oscillations. 04:45: At the same time, gas moves vertically in and out during the same oscillation, reaching velocities of 0.1 meters per second. 01:33: ... waves reflect around the stellar interior, setting up global oscillations, natural resonant frequencies that carry information about stars ... 01:54: The fast-growing field of asteroseismology uses these oscillations to probe the interiors of the distant stars. 03:58: These p-mode oscillations follow the rules of spherical harmonics, taking the form of regular patterns of density oscillations throughout the star. 04:21: The strongest oscillations in the sun are in the two to four millihertz range. 04:26: These are the sun's 5-minute oscillations. 04:31: Well, for the sun, we can map these oscillations in two ways-- changes in brightness and changes in velocity. 04:57: And because many different modes overlap, the complex overlapping effects of these oscillations are separated using Fourier analysis. 05:13: ... short, the many overlapping modes form complex oscillations on the surface of the star, but these can be deconstructed into simple ... 06:51: They're too far away to resolve their surfaces, so we only see the global effects of their oscillations. 08:56: We're only now learning to decipher the complex overlay of tones in stellar oscillations. 03:58: These p-mode oscillations follow the rules of spherical harmonics, taking the form of regular patterns of density oscillations throughout the star. 01:33: ... waves reflect around the stellar interior, setting up global oscillations, natural resonant frequencies that carry information about stars impenetrable ...
	2017-12-06: Understanding the Uncertainty Principle with Quantum Fourier Series 10:26: ... localized at one spot in space, can so be described as infinite oscillations in momentum space, spanning all possible ... 10:39: But each of these oscillations in momentum space are equivalent to particles with highly specific momenta. 10:26: ... localized at one spot in space, can so be described as infinite oscillations in momentum space, spanning all possible ... 10:39: But each of these oscillations in momentum space are equivalent to particles with highly specific momenta.
	2017-11-02: The Vacuum Catastrophe 01:40: Higher energy oscillations represent the presence of real particles. 01:45: However, even the lowest possible energy oscillation, the one corresponding to the absence of particles, the so-called vacuum state, has some energy. 01:55: ... the Heisenberg uncertainty principle, the vacuum state of any fuel oscillation must be half of the tiny Planck constant times the frequency of that ... 01:40: Higher energy oscillations represent the presence of real particles.
	2017-10-25: The Missing Mass Mystery 04:23: The interplay between baryonic and photons resulted in density oscillations. 04:28: ... rippling outwards from high density regions, these baryonic acoustic oscillations helped produce a smaller family of speckles compared to the largest ... 04:43: Those large blobs are driven by dark matter, which doesn't interact with light, so it can't produce density oscillations. 04:23: The interplay between baryonic and photons resulted in density oscillations. 04:28: ... rippling outwards from high density regions, these baryonic acoustic oscillations helped produce a smaller family of speckles compared to the largest ... 04:43: Those large blobs are driven by dark matter, which doesn't interact with light, so it can't produce density oscillations. 04:28: ... rippling outwards from high density regions, these baryonic acoustic oscillations helped produce a smaller family of speckles compared to the largest blobs on ...
	2017-10-19: The Nature of Nothing 02:15: ... fields oscillate, vibrate with different energies, and those oscillations are the electrons, quarks, neutrinos, photons, gluons, et cetera, that ... 02:28: Now these fields are quantum fields, which means their oscillations can't just have any old energy. 02:15: ... fields oscillate, vibrate with different energies, and those oscillations are the electrons, quarks, neutrinos, photons, gluons, et cetera, that ... 02:28: Now these fields are quantum fields, which means their oscillations can't just have any old energy.
	2017-08-10: The One-Electron Universe 08:23: We now think of electrons as oscillations, as waves, in the more fundamental electron field.
	2017-06-28: The First Quantum Field Theory 03:09: For example, in a 3D room full of air, sound waves are oscillations in air density. 04:36: The electromagnetic field is a quantum field and so these oscillations have a minimum amplitude. 04:43: The smallest possible oscillation above zero is an indivisible little packet of energy that we call a photon. 07:31: ... oscillation at each point can be complicated but it has to be built up from a number ... 07:53: His mathematics, then, kept track of the number of particles, or quantum oscillations, in each of these states. 08:26: He also coined the name second quantization for the process of counting the changing number of quantum oscillations, or particles per state. 10:48: Remember, this approach began with thinking of photons as oscillations in the electromagnetic field. 10:55: So does this mean that all particles are also oscillations in fields? 11:22: There's an electron field whose oscillations are what we know as the electron and the antielectron. 11:28: ... and gluons-- and of course for the famous Higgs boson, which is just an oscillation in the Higgs ... 03:09: For example, in a 3D room full of air, sound waves are oscillations in air density. 04:36: The electromagnetic field is a quantum field and so these oscillations have a minimum amplitude. 07:31: ... but it has to be built up from a number of minimum amplitude quantum oscillations, which is to say, ... 07:53: His mathematics, then, kept track of the number of particles, or quantum oscillations, in each of these states. 08:26: He also coined the name second quantization for the process of counting the changing number of quantum oscillations, or particles per state. 10:48: Remember, this approach began with thinking of photons as oscillations in the electromagnetic field. 10:55: So does this mean that all particles are also oscillations in fields? 11:22: There's an electron field whose oscillations are what we know as the electron and the antielectron.
	2017-03-29: How Time Becomes Space Inside a Black Hole 12:28: Colin Brown asks if the spin flip oscillation is only dependent on the electromagnetic field oscillation. 12:43: So the time crystal oscillation and the EM field oscillation are in resonance. 13:33: And the oscillations were supposed to go on forever without any energy inputs. 13:54: ... are still exciting, because the system did develop their own internal oscillations that resisted changes from the outside forcing EM field ... 14:06: So the oscillations were, in a sense, fundamental, just not sustainable. 13:33: And the oscillations were supposed to go on forever without any energy inputs. 13:54: ... are still exciting, because the system did develop their own internal oscillations that resisted changes from the outside forcing EM field ... 14:06: So the oscillations were, in a sense, fundamental, just not sustainable.
	2017-03-15: Time Crystals! 01:09: He suggested a type of matter that exhibits a sort of fundamental oscillation over time. 03:07: More, he imagined a substance for which oscillations were the most fundamental lowest energy or ground states. 04:43: The spin-flip oscillation will be determined by the period of the laser. 05:01: But the paper proposes that if you let go of the electrons, their spin oscillations should continue. 05:29: So two, three, four, et cetera spin oscillations for every EM field oscillation in the laser. 07:08: They used microwaves to generate oscillations in the spins of nitrogen impurities inside a diamond. 07:23: The ytterbium ions oscillations were twice the laser period. 03:07: More, he imagined a substance for which oscillations were the most fundamental lowest energy or ground states. 05:01: But the paper proposes that if you let go of the electrons, their spin oscillations should continue. 05:29: So two, three, four, et cetera spin oscillations for every EM field oscillation in the laser. 07:08: They used microwaves to generate oscillations in the spins of nitrogen impurities inside a diamond. 07:23: The ytterbium ions oscillations were twice the laser period.
	2017-02-02: The Geometry of Causality 12:07: ... proposes that particles that we see in regular 4D spacetime result from oscillations within many more coiled dimensions, so-called ...
	2016-11-09: Did Dark Energy Just Disappear? 10:53: ... leading us away from that little corner also: like baryon acoustic oscillations, but I'm gonna have to leave that one to our previous episodes ...
	2016-07-20: The Future of Gravitational Waves 00:43: These oscillations echoed the final 1/10 of a second of the end spiral and merger of a pair of black holes, each around 30 times the mass of the Sun.
	2016-02-24: Why the Big Bang Definitely Happened 06:21: The fancy name is baryon acoustic oscillations which cause ring-like clustering of the CMB fluctuations.
	2016-02-11: LIGO's First Detection of Gravitational Waves! 04:31: ... oscillations have a frequency, number of stretches and squeezes per second, that ...
	2015-12-16: The Higgs Mechanism Explained 03:00: ... the tiny neutrino has mass, and it was the measurement of those neutrino oscillations the won the 2015 Nobel Prize in ...
	2015-08-27: Watch THIS! (New Host + Challenge Winners) 00:41: ... proportionality constants for how much time it takes to do a complete oscillation. ... 00:50: ... find analogous quantities and figure out an expression for the period of oscillation of a particle falling through a ...
	2015-08-19: Do Events Inside Black Holes Happen? 13:56: What you are mistaking for tides is seiching in those bodies of water, namely resonant oscillations of the water due to the shape of the lakes.

54 result(s) shown.

Help · About · Index