Symmetry breaking in noncommutative finite temperature $λφ^4$
theory with a nonuniform ground state [PDF]
J. M. Hernández, C. Ramírez, M. SánchezWe consider the CJT effective action at finite temperature for a real scalar field theory with a nonuniform ground state which depends on the temperature. It turns out that to the first approximation the phase transition which breaks parity appears to be first order, and its critical temperature depends on the nonuniformity of the ground state.View original: http://arxiv.org/abs/1212.6927
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