Absolute Cold | Space Time

By: PBS Space Time

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Uploaded on 10/11/2017

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Resources:
Absolute Zero:
https://en.wikipedia.org/wiki/Absolute_zero

Zero-Point Energy:
https://en.wikipedia.org/wiki/Zero-point_energy

Bose-Einstein Condensate:
https://en.wikipedia.org/wiki/Bose-Einstein_condensate

Alfred Leitner's Superfluid Liquid Helium:
http://alfredleitner.com/superfluid.html

Links to Comments Response:

Rcoates89
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z22lcfrgpz2sg5ixd04t1aokgcrarmubr2l25rvpe2erbk0h00410

Joseph Gamble
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z23xwxyhhnaiupzpm04t1aokgrzsld44qfcv4gwseddzbk0h00410

Dillan Burris
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z22vflpxcoaajd0f3acdp435lhovrxjuxvfyg4vdjsxw03c010c

Rubbergnome
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z22phdvhwsyehtjxe04t1aokg1ewo1qi3ouyue3ocjgnbk0h00410

Many experimental physicists have spent their careers trying to cool things to absolute zero. This state of absolute cold is the zero-point on the Kelvin temperature scale, corresponding to -273.15 Celsius. Using lasers and magnetic fields, we’ve now managed to cool certain substances to less than a billionth of a Kelvin. Doing so has revealed some bizarre quantum states of matter. But quantum mechanics may also prevent us from ever reaching absolute zero. Understanding the limit to cold will lead us to an understanding of the nature of the quantum vacuum itself.

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Comments (1):

By Triesault    2017-12-05

There is a good PBS Space Time episode discussing Absolute Cold. This portion of the episode discusses the Bose-Einstein condensate: https://www.youtube.com/watch?v=OvgZqGxF3eo&feature=youtu.be...

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