scholarly journals Derivative expansion and large gauge invariance at finite temperature

1998 ◽  
Vol 58 (8) ◽  
Author(s):  
J. Barcelos-Neto ◽  
Ashok Das
Keyword(s):  
Gauge Invariance ◽  
Finite Temperature ◽  
Derivative Expansion

scholarly journals Gauge invariance and effective actions inD=3at finite temperature

1998 ◽  
Vol 57 (2) ◽  
pp. 1171-1177 ◽  
Author(s):  
I. J. R. Aitchison ◽  
C. D. Fosco
Keyword(s):  
Gauge Invariance ◽  
Finite Temperature

PHASE TRANSITIONS IN THE ABELIAN HIGGS MODEL AT FINITE DENSITIES

1991 ◽  
Vol 06 (23) ◽  
pp. 4063-4076 ◽  
Author(s):  
V.J. PETER ◽  
M. SABIR
Keyword(s):  
Phase Transitions ◽  
Density Dependence ◽  
Gauge Invariance ◽  
Finite Temperature ◽  
Chemical Potential ◽  
Higgs Model ◽  
Coupling Constants ◽  
Abelian Higgs Model ◽  
Multiple Phase ◽  
The One

We study the U(1)-invariant Abelian Higgs model at a finite temperature and a finite chemical potential, at the one-loop level of approximation, and show the existence of chemical-potential-induced multiple-phase transitions at finite temperatures. The temperature and density dependence of the coupling constants is also analyzed. The gauge invariance of the results obtained is demonstrated.

GAUGE INDEPENDENCE OF THE HOT A0-CONDENSATE

1992 ◽  
Vol 07 (31) ◽  
pp. 2895-2903 ◽  
Author(s):  
V. V. SKALOZUB
Keyword(s):  
Gauge Field ◽  
Effective Action ◽  
Gauge Invariance ◽  
Finite Temperature ◽  
Field Component ◽  
Gauge Dependence

The problem of gauge dependence of the zero gauge field component condensate, A0 = const ., in the framework of finite temperature SU(2) gluodynamics is investigated. In straightforward calculations it is shown that the two-loop effective action W (A0, ξ) satisfies the generalized Nielsen identity. Thus, the gauge invariance of the A0-condensation is proved.

scholarly journals Holographic KMS relations at finite density

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
R. Loganayagam ◽  
Krishnendu Ray ◽  
Shivam K. Sharma ◽  
Akhil Sivakumar
Keyword(s):  
Dirac Equation ◽  
Real Time ◽  
Hawking Radiation ◽  
Finite Temperature ◽  
Chemical Potential ◽  
Derivative Expansion ◽  
Finite Density ◽  
The Real

Abstract We extend the holographic Schwinger-Keldysh prescription introduced in [1] to charged black branes, with a view towards studying Hawking radiation in these backgrounds. Equivalently we study the real time fluctuations of the dual CFT held at finite temperature and finite chemical potential. We check our prescription using charged Dirac probe fields. We solve the Dirac equation in a boundary derivative expansion extending the results in [2]. The Schwinger-Keldysh correlators derived using this prescription automatically satisfy the appropriate KMS relations with Fermi-Dirac factors.

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