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2022-08-24: What Makes The Strong Force Strong?

  • 18:36: Those fields have positive and negative frequency modes that cancel each other out to leave a vacuum.

2022-06-22: Is Interstellar Travel Impossible?

  • 19:30: Hawking’s original argument talked about perturbing the positive and negative frequency modes of the quantum vacuum.

2019-10-07: Black Hole Harmonics

  • 03:34: Higher frequency modes are called overtones, and they provide richness and texture to the sound.

2018-04-04: The Unruh Effect

  • 06:00: And just as with Hawking radiation, that horizon cuts off your access to certain fundamental frequency modes of the quantum vacuum.
  • 06:20: ... here they also lead to a mixing of positive and negative frequency modes in the accelerating frame of reference, which leads to the creation of ...

2018-03-15: Hawking Radiation

  • 03:51: ... is in a vacuum state, there's a balance between positive and negative frequency modes, which you can crudely think of as a balance between virtual matter and ...
  • 08:13: So Hawking's math describes splitting or mixing of these pure positive and negative frequency modes.
  • 10:05: We can think about positive and negative frequency modes being mixed due to scattering, perhaps, by the as yet undiscovered graviton.

2017-11-08: Zero-Point Energy Demystified

  • 04:31: By cutting off certain frequency modes between the plates, you lower the vacuum energy in that region.
  • 08:35: ... field is estimated by integrating the energy in all possible frequency modes up to some cutoff ...

2017-11-02: The Vacuum Catastrophe

  • 02:23: To calculate the density of energy of the vacuum, we should add this tiny energy over an infinite range of frequency modes for all fields.
  • 02:59: Then our sum of frequency modes would be finite.
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