Colder than absolute zero?

Bobbywhy

Absolute zero is often thought to be the coldest temperature possible. But now researchers show they can achieve even lower temperatures for a strange realm of "negative temperatures."
http://www.livescience.com/25959-ato...lute-zero.html

Whovian

Perpetual heat source and a way to prevent heat death! :D Or, at least, I hope. Probably not really.

Naty1

Sounds like 'cold fusion' hopes...I'll wait for some experimental verification by others.

D H

This is the third thread on this topic today.

There's an ongoing discussion on negative temperatures in this thread: http://www.physicsforums.com/showthread.php?t=662268.

I'm closing this thread since there's no reason to have three active threads on the same subject.

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Bobbywhy Recognitions: Gold Member	Colder than absolute zero? Tweet Absolute zero is often thought to be the coldest temperature possible. But now researchers show they can achieve even lower temperatures for a strange realm of "negative temperatures." http://www.livescience.com/25959-ato...lute-zero.html

Whovian	Perpetual heat source and a way to prevent heat death! :D Or, at least, I hope. Probably not really.

Naty1 Recognitions: Gold Member	Sounds like 'cold fusion' hopes...I'll wait for some experimental verification by others.

D H Mentor	Colder than absolute zero? This is the third thread on this topic today. There's an ongoing discussion on negative temperatures in this thread: http://www.physicsforums.com/showthread.php?t=662268. I'm closing this thread since there's no reason to have three active threads on the same subject.