|
2022-12-08: How Are Quasiparticles Different From Particles?
- 08:40: ... forming a nucleus and electrons bound to that nucleus by the exchange of virtual photons. ...
|
|
2022-08-24: What Makes The Strong Force Strong?
- 06:07: We can think of each charged particle as generating a constant buzz of virtual photons around it, forming what we think of as its EM field.
|
|
2022-01-27: How Does Gravity Escape A Black Hole?
- 06:16: ... force is communicated between charged particles by transferring virtual photons - ephemeral excitations in the electromagnetic ...
- 07:10: Or more precisely, they exchange the sum of all possible virtual photons.
- 06:16: ... force is communicated between charged particles by transferring virtual photons - ephemeral excitations in the electromagnetic ...
|
|
2021-12-10: 2021 End of Year AMA!
- 00:02: ... what you do is you sum over you add over all the possible ways that virtual photons could be exchanged between the real particles the electron and the ...
|
|
2021-04-07: Why the Muon g-2 Results Are So Exciting!
- 04:33: In this theory, electromagnetic interactions result from charge particles communicating by exchanging virtual photons.
- 04:47: For example, a pair of electrons could repel each other by exchanging one virtual photon, or two virtual photons, or three et cetera.
- 04:56: All those virtual photons could do something weird like momentarily becoming an electron-positron pair.
|
|
2018-10-31: Are Virtual Particles A New Layer of Reality?
- 06:50: These are the virtual photons that ultimately provide the attractive force.
- 08:22: In fact, you only see that force in the sum of all possible virtual photons over all possible Feynman diagrams.
|
|
2018-08-15: Quantum Theory's Most Incredible Prediction
- 07:22: So one way to think about this quantum buzz is with virtual photons.
- 07:36: In the case of electromagnetism, those interactions are mediated by virtual photons, which are just a mathematical way to describe quantum buzz.
- 07:45: Every interaction with virtual photons that can happen, does, at least in a sense.
- 08:17: They represent the possible interactions of the quantum field by way of virtual photons.
|
|
2018-06-20: The Black Hole Information Paradox
- 14:01: But quantum-field theory imagines the electromagnetic force as being transmitted by virtual photons.
- 14:07: Now it's important to note the distinction between virtual photons and real photons.
|
|
2017-11-29: Citizen Science + Zero-Point Challenge Answer
- 06:57: ... of the vacuum energy density comes from assuming that there are no virtual photons above a certain cut of ...
- 08:42: ... interactions that require the exchange of much shorter wavelength virtual photons. ...
- 09:06: That proves the existence of virtual photons with wavelengths smaller than the plate separation.
|
|
2017-11-02: The Vacuum Catastrophe
- 02:55: What if there's a maximum possible frequency for virtual photons?
- 03:31: ... if we add up the vacuum energy, including virtual photons, all the way up to the Planck energy, we get a finite number-- a very, ...
|
|
2017-10-19: The Nature of Nothing
- 04:33: For example, QFT describes the electromagnetic force as the exchange of virtual photons between charged particles.
- 05:55: And so virtual photons can exist for any amount of time, long enough to carry the electromagnetic force to any distance.
- 08:43: He imagined two conducting plates, brought so close together that only certain virtual photons could exist between the plates.
|
|
2017-07-12: Solving the Impossible in Quantum Field Theory
- 07:43: ... include exchanging two virtual photons, or one electron emitting and reabsorbing a virtual photon, or the ...
- 08:41: Electrons are constantly interacting with virtual photons.
|