I googled a bit about this and managed to find this(adsbygoogle = window.adsbygoogle || []).push({});

http://arxiv.org/abs/quant-ph/0505056

http://physics.bu.edu/~mohanty/physica-decoherence.pdf

Since I cant make much out of them, maybe except this interesting phrase in the first one

"First

of all it is intriguing thateven at."

absolute zero a coherent superposition of states can get destroyed by zero point fluctuations

But this, I dont understand what they mean by this:

"At absolute zero the quantum system

can only lose energy to the

cold environment"

And another question : From what I know, the more atoms you try to put in superposition, you need to get them closer to absolute zero, so can one deduce that theoretically at absolute zero you could have the whole universe in a superposition state ?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# B Superposition at absolute zero

Have something to add?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**