scholarly journals Quantum Fields at Non-zero Temperature

2021 ◽  
pp. 167-168
Author(s):  
Franco Strocchi
Keyword(s):  
Zero Temperature ◽  
Quantum Fields

scholarly journals On Quantum Fields at High Temperature

Universe ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 26
Author(s):  
Ingolf Bischer ◽  
Thierry Grandou ◽  
Ralf Hofmann
Keyword(s):  
Perturbation Theory ◽  
High Temperature ◽  
Zero Temperature ◽  
Quantum Fields ◽  
Thermal Perturbation ◽  
Loop Order ◽  
Momentum Scale ◽  
Damping Rate ◽  
Rate Calculation

Revisiting the fast fermion damping rate calculation in a thermalized momentum scale eT (QED) and/or momentum scale gT (QCD) plasma at 4-loop order, focus is put on a peculiar perturbative structure which has no equivalent at zero-temperature. Not surprisingly, and in agreement with previous C ★ -algebraic analyses, this structure renders the use of thermal perturbation theory quite questionable.

Meaning

2017 ◽  
Author(s):  
Richard Healey
Keyword(s):  
Quantum Theory ◽  
Physical Object ◽  
Quantum Fields ◽  
Conceptual Content ◽  
Classical Physics ◽  
Physical Context

Novel quantum concepts acquire content not by representing new beables but through material-inferential relations between claims about them and other claims. Acceptance of quantum theory modifies other concepts in accordance with a pragmatist inferentialist account of how claims acquire content. Quantum theory itself introduces no new beables, but accepting it affects the content of claims about classical magnitudes and other beables unknown to classical physics: the content of a magnitude claim about a physical object is a function of its physical context in a way that eludes standard pragmatics but may be modeled by decoherence. Leggett’s proposed test of macro-realism illustrates this mutation of conceptual content. Quantum fields are not beables but assumables of a quantum theory we use to make claims about particles and non-quantum fields whose denotational content may also be certified by models of decoherence.

Erratum: Dilute spin glass at zero temperature in general dimension

1991 ◽  
Vol 43 (16) ◽  
pp. 13684-13685
Author(s):  
Lior Klein ◽  
Joan Adler ◽  
Amnon Aharony ◽  
A. B. Harris ◽  
Yigal Meir
Keyword(s):  
Spin Glass ◽  
Zero Temperature ◽  
General Dimension

scholarly journals Dissipation of Quantum Turbulence in the Zero Temperature Limit

2007 ◽  
Vol 99 (26) ◽  
Author(s):  
P. M. Walmsley ◽  
A. I. Golov ◽  
H. E. Hall ◽  
A. A. Levchenko ◽  
W. F. Vinen
Keyword(s):  
Quantum Turbulence ◽  
Temperature Limit ◽  
Zero Temperature
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