scholarly journals Light-front field theories at finite temperature

2002 ◽  
Vol 66 (12) ◽  
Author(s):  
V. S. Alves ◽  
Ashok Das ◽  
Silvana Perez
Keyword(s):  
Finite Temperature ◽  
Light Front ◽  
Field Theories

scholarly journals DIFFERENTIAL RENORMALIZATION FOR CURVED SPACE AND FINITE TEMPERATURE

1995 ◽  
Vol 10 (19) ◽  
pp. 2819-2839 ◽  
Author(s):  
JORDI COMELLAS ◽  
PETER E. HAAGENSEN ◽  
JOSÉ I. LATORRE
Keyword(s):  
Finite Temperature ◽  
Field Theories ◽  
Coordinate Space ◽  
Renormalization Procedure ◽  
Central Idea ◽  
Curved Space ◽  
Diffeomorphism Invariance ◽  
Differential Renormalization ◽  
Specific Calculations ◽  
Scalar Theories

We derive, based only on simple principles of renormalization in coordinate space, closed renormalized amplitudes and renormalization group constants at one- and two-loop orders for scalar field theories in general backgrounds. This is achieved through a renormalization procedure we develop exploiting the central idea behind differential renormalization, which needs as the only inputs the propagator and the appropriate Laplacian for the backgrounds in question. We work out this coordinate space renormalization in some detail, and subsequently back it up with specific calculations for scalar theories both on curved backgrounds, manifestly preserving diffeomorphism invariance, and at finite temperature.

scholarly journals Finite-Temperature Field Theory on the Light Front

2005 ◽  
Vol 36 (1-4) ◽  
pp. 225-230
Author(s):  
J. Raufeisen ◽  
S. J. Brodsky
Keyword(s):  
Field Theory ◽  
Temperature Field ◽  
Finite Temperature ◽  
Light Front ◽  
Finite Temperature Field Theory

SCHWINGER α-PARAMETRIC REPRESENTATION OF FINITE TEMPERATURE FIELD THEORIES: RENORMALIZATION

1990 ◽  
Vol 05 (23) ◽  
pp. 4427-4440 ◽  
Author(s):  
M. BENHAMOU ◽  
A. KASSOU-OU-ALI
Keyword(s):  
Temperature Field ◽  
Scalar Field ◽  
Finite Temperature ◽  
Short Range ◽  
Parametric Representation ◽  
Field Theories ◽  
Compact Form ◽  
Zero Temperature ◽  
Feynman Amplitudes ◽  
Temperature Scalar

We present the extension of the zero temperature Schwinger α-representation to the finite temperature scalar field theories. We give, in a compact form, the α-integrand of Feynman amplitudes of these theories. Using this representation, we analyze short-range divergences, and recover in a simple way the known result that the counterterms are temperature-independent.

scholarly journals Condensation of p-Branes and Generalized Higgs/Confinement Duality

1997 ◽  
Vol 12 (06) ◽  
pp. 1227-1235 ◽  
Author(s):  
Fernando Quevedo ◽  
Carlo A. Trugenberger
Keyword(s):  
Phase Transition ◽  
Recent Work ◽  
Finite Temperature ◽  
Weak Coupling ◽  
Tensor Field ◽  
Low Energy ◽  
Field Theories ◽  
Antisymmetric Tensor ◽  
Antisymmetric Tensor Field

We review our recent work on the low-energy actions and the realizations of strong-weak coupling dualities in non-perturbative phases of compact antisymmetric tensor field theories due to p-brane condensation. As examples we derive and discuss the confining string and confining membrane actions obtained from compact vector and tensor theories in 4D. We also mention the relevance of our results for the description of the Hagedorn phase transition of finite temperature strings.

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