scholarly journals Thermodynamic Properties of Non-equilibrium States in Quantum Field Theory

2002 ◽  
Vol 297 (2) ◽  
pp. 219-242 ◽  
Author(s):  
Detlev Buchholz ◽  
Izumi Ojima ◽  
Hansjörg Roos
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Thermodynamic Properties ◽  
Equilibrium States ◽  
Quantum Field ◽  
Non Equilibrium

scholarly journals KMS-like properties of local equilibrium states in quantum field theory

2017 ◽  
Vol 117 ◽  
pp. 15-35 ◽  
Author(s):  
Michael Gransee ◽  
Nicola Pinamonti ◽  
Rainer Verch
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Local Equilibrium ◽  
Equilibrium States ◽  
Quantum Field

scholarly journals Exploring the thermodynamics of noncommutative scalar fields

2016 ◽  
Vol 31 (11) ◽  
pp. 1650057 ◽  
Author(s):  
Francisco A. Brito ◽  
Elisama E. M. Lima
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Thermodynamic Properties ◽  
Scalar Fields ◽  
Einstein Condensate ◽  
Target Space ◽  
Quantum Field ◽  
Condensate Fraction ◽  
Bose Einstein Condensate ◽  
Bose Einstein

We study the thermodynamic properties of the Bose–Einstein condensate (BEC) in the context of the quantum field theory with noncommutative target space. Our main goal is to investigate in which temperature and/or energy regimes the noncommutativity can characterize some influence on the BEC properties described by a relativistic massive noncommutative boson gas. The noncommutativity parameters play a key role in the modified dispersion relations of the noncommutative fields, leading to a new phenomenology. We have obtained the condensate fraction, internal energy, pressure and specific heat of the system and taken ultrarelativistic (UR) and nonrelativistic (NR) limits. The noncommutative effects on the thermodynamic properties of the system are discussed. We found that there appear interesting signatures around the critical temperature.

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