Physics at the light-front

Brodsky, Stanley J.

doi:10.1016/s0920-5632(02)01355-5

Cited by 13 publications

(10 citation statements)

References 88 publications

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“…The seemingly natural choice [7] of e ÿ LC p ÿ as the partition function has been shown by Alves and Das [8] to lead to singular results for well known quantities that are finite in the equal-time approach. They argue that using e ÿ LC p ÿ for the partition function implies that the physical system is in contact with a heat bath that has been boosted to the light-cone frame and that this is not equivalent to the physics of a system in contact with a heat bath at rest.…”

Section: Introductionmentioning

confidence: 99%

N=(1,1)super Yang-Mills theory in1+1dimensions at finite temperature

et al. 2004

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We present a formulation of N 1; 1 super Yang-Mills theory in 1 1 dimensions at finitetemperature. The partition function is constructed by finding a numerical approximation to the entire spectrum. We solve numerically for the spectrum using supersymmetric discrete light-cone quantization (SDLCQ) in the large-N c approximation and calculate the density of states. We find that the density of states grows exponentially and the theory has a Hagedorn temperature, which we extract. We find that the Hagedorn temperature at infinite resolution is slightly less than one in units of. We use the density of states to also calculate a standard set of thermodynamic functions below the Hagedorn temperature. In this temperature range, we find that the thermodynamics is dominated by the massless states of the theory.

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Section: Introductionmentioning

confidence: 99%

N=(1,1)super Yang-Mills theory in1+1dimensions at finite temperature

et al. 2004

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“…The light-front thermal field theory was initiated in Ref. [49] and formulated in Refs. [50,51,52,53,54], In the light-front thermal field theory, the (imaginary and real) time variable now refers to the light-cone time x + .…”

Section: Light-front Field Theory At Finite Temperaturementioning

confidence: 99%

BFKL Equation at Finite Temperature

Ohnishi

Lee²

2009

J. Korean Phy. Soc.

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We consider the Color Glass Condensate (CGC) at finite temperature, which would be relevant to the initial condition of relativistic heavy ion collisions and the energy loss of energetic partons in the quark-gluon plasma. In the weak source approximation, we derive the thermal BFKL equation. We find that the thermal effect shows up as a Bose enhancement of the soft gluon emission if the temperature is high enough to match the light-cone energy of the soft gluons. This suggests that the saturation regime could be reached sooner than in the vacuum.

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“…One must be careful in defining thermodynamic quantities on the light cone. It seems natural to define the partition function [8] on the light cone as e ÿ LC p ÿ . However, as discussed in Refs.…”

Section: Introductionmentioning

confidence: 99%

Spectrum and thermodynamic properties of two-dimensionalN=(1,1)super Yang-Mills theory with fundamental matter and a Chern-Simons term

et al. 2007

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We consider N 1; 1 super Yang-Mills theory in 1 1 dimensions with fundamentals at large N c . A Chern-Simons term is included to give mass to the adjoint partons. Using the spectrum of the theory, we calculate thermodynamic properties of the system as a function of the temperature and the Yang-Mills coupling. In the large-N c limit there are two noncommunicating sectors, the glueball sector, which we presented previously, and the mesonlike sector that we present here. We find that the mesonlike sector dominates the thermodynamics. Like the glueball sector, the meson sector has a Hagedorn temperature T H , and we show that the Hagedorn temperature grows with the coupling. We calculate the temperature and coupling dependence of the free energy for temperatures below T H . As expected, the free energy for weak coupling and low temperature grows quadratically with the temperature. Also the ratio of the free energies at strong coupling compared to weak coupling, r sÿw , for low temperatures grows quadratically with T. In addition, our data suggest that r sÿw tends to zero in the continuum limit at low temperatures.

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Physics at the light-front

Cited by 13 publications

References 88 publications

N=(1,1)super Yang-Mills theory in1+1dimensions at finite temperature

N=(1,1)super Yang-Mills theory in1+1dimensions at finite temperature

BFKL Equation at Finite Temperature

Spectrum and thermodynamic properties of two-dimensionalN=(1,1)super Yang-Mills theory with fundamental matter and a Chern-Simons term

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