What Happens at Absolute Zero and Can We Go Beyond It?

AI Thread Summary
Absolute zero is the theoretical point at which atomic motion completely ceases, but it cannot be reached or surpassed. At absolute zero, atoms still possess 'zero point energy,' meaning they retain some motion due to quantum effects. There is no upper limit to temperature, with extreme conditions potentially arising from events like supernovae or black hole collisions. The concept of negative temperatures exists, indicating states where systems can exhibit unusual properties. Overall, the behavior of atoms at absolute zero and the nature of temperature extremes are complex topics influenced by quantum mechanics.
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Can we go beyond absolute zero what happens at absolute zero do atoms behave any different insights please

Also what is the hottest temparature known
?
 
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bozo the clown said:
Can we go beyond absolute zero what happens at absolute zero do atoms behave any different insights please

Also what is the hottest temparature known?

You can't go below absolute zero. You can't even reach absolute zero, but you can get close.

Absolute zero is defined as the complete cessation of motion in a gas. You can't get any stiller than not moving.

I don't think there is an upper limit to temperature. What might cause the highest temperature observed, or conjectured? A supernova detonation? Probably not? Electron-positron anniahilation? Matter falling onto the surface of a neutron star? The colission of two black holes?
 
The motion of the atoms doesn't stop completely at absolute zero. If you knew the velocity of an atom was exactly zero, what would you be able to say about its position? (Heisenberg uncertainty principle)

What actually happens is that once a particle has lost all the thermal energy it can, it is left with 'zero point energy'. All motion does not cease.
 

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