Absolute zero should be impossible

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SUMMARY

Absolute zero, defined as 0 Kelvin, is the theoretical temperature at which a system's entropy reaches its minimum. Contrary to classical physics, a system at absolute zero does not imply zero atomic motion; instead, it exists in a quantum mechanical ground state. The Heisenberg uncertainty principle does not prevent the existence of absolute zero, as it pertains to the measurement of particles' positions and momenta rather than thermal motion. Therefore, absolute zero remains a valid concept in quantum mechanics despite the implications of uncertainty.

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coach950
So since heat comes from atoms vibrating and moving and as they go fast heat increases and when they go slower heat decreases. If I got this right absolute zero is when they give off no heat and this would mean that the atoms are not moving at all. Well then if that is how absolute zero works then it is impossible due to Heisenberg's uncertainty principle. We could measure where they were and since they weren't moving we would know there momentum would be zero. So basically what I'm asking is that if Heisenberg's uncertainty principle is true then is absolute zero even possible.
 
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coach950 said:
So since heat comes from atoms vibrating and moving and as they go fast heat increases and when they go slower heat decreases. If I got this right absolute zero is when they give off no heat and this would mean that the atoms are not moving at all. Well then if that is how absolute zero works then it is impossible due to Heisenberg's uncertainty principle. We could measure where they were and since they weren't moving we would know there momentum would be zero. So basically what I'm asking is that if Heisenberg's uncertainty principle is true then is absolute zero even possible.

Read this article and tell us what you think:

https://en.wikipedia.org/wiki/Absolute_zero
 
Absolute zero does not correspond to a system with zero motion. A system at absolute zero should be defined to be in its quantum mechanical ground state. While defining "motion" in quantum mechanics is a little different than classical physics, a system like a Fermi gas with a macroscopic number of particles at zero temperature will have many particles with a "velocity" p/m on the order of 10^6 m/s, even though it is a zero entropy state. Heisenberg uncertainty is unrelated to uncertainties due to thermal effects.
 
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