upper limit? to how many identical bosons in a BEC? how/why?

Subject: upper limit? to how many identical bosons in a BEC? how/why?

Date: Mon Sep 15 23:56:10 2014
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Area of science: Physics
ID: 1410850570.Ph

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How many identical bosons can occupy the same state (or space? or a tiny
volume?) according to quantum field theory (QFT)? Does QFT say you can cram as
many identical bosons (=photons(massless), atoms(massive) etc.) as you like in a
single state (or in a Bose–Einstein condensate?)? but does this* indicate there
is an upper limit to how many bosons can occupy a single state or a chunk of a
single BE condensate? (first of all, is what is written here* correct?) If
correct, how and why could this implosion and explosion happen? What caused the
implosion and explosion? and what happened to the BEC and its bosons (atoms)
just before and after this event? Were these atoms converted to other types of
particles? if so or not so, how/why?

*http://en.wikipedia.org/wiki/Bose%E2%80%93Einstein_condensate#Attractive_interactions

Re: upper limit? to how many identical bosons in a BEC? how/why?

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