Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Nieto, Agustín"'
Autor:
Nieto, Agustin, Tytgat, Michel H. G.
We study the perturbation expansion of the free energy of N=4 supersymmetric SU(N) Yang-Mills at finite temperature in powers of 't Hooft's coupling g^2 N in the large N limit. Infrared divergences are controlled by constructing a hierarchy of two 3
Externí odkaz:
http://arxiv.org/abs/hep-th/9906147
Autor:
Laitano, Guillermina, Nieto, Agustín
Publikováno v:
Estudios Sociológicos, 2017 May 01. 35(104), 293-318.
Externí odkaz:
https://www.jstor.org/stable/44321360
Autor:
Braaten, Eric, Nieto, Agustin
Quantum corrections to the properties of a homogeneous interacting Bose gas at zero temperature can be calculated as a low-density expansion in powers of $\sqrt{\rho a^3}$, where $\rho$ is the number density and $a$ is the S-wave scattering length. W
Externí odkaz:
http://arxiv.org/abs/cond-mat/9712041
Autor:
Braaten, Eric, Nieto, Agustin
Publikováno v:
Phys.Rev.B56:14745-14765,1997
In the mean-field approximation, the number density \rho(r) for the ground state of a Bose-Einstein condensate trapped by an external potential V(r) satisfies a classical field equation called the Gross-Pitaevskii equation. We show that quantum corre
Externí odkaz:
http://arxiv.org/abs/cond-mat/9707199
Autor:
Nieto, Agustin
Effective field theory methods provide a convenient approach to study static observables in field theory at finite temperature. In this talk, I will outline the construction of the effective field theory that describes effective observables in QCD at
Externí odkaz:
http://arxiv.org/abs/hep-ph/9707267
Autor:
Nieto, Agustin
Publikováno v:
Int.J.Mod.Phys. A12 (1997) 1431-1464
Recent developments of perturbation theory at finite temperature based on effective field theory methods are reviewed. These methods allow the contributions from the different scales to be separated and the perturbative series to be reorganized. The
Externí odkaz:
http://arxiv.org/abs/hep-ph/9612291
Autor:
Braaten, Eric, Nieto, Agustin
Publikováno v:
Phys.Rev.B55:8090-8093,1997
The low-density expansion for a homogeneous interacting Bose gas at zero temperature can be formulated as an expansion in powers of $\sqrt{\rho a^3}$, where $\rho$ is the number density and $a$ is the S-wave scattering length. Logarithms of $\rho a^3
Externí odkaz:
http://arxiv.org/abs/hep-th/9609047
Autor:
Nieto, Agustin
A hierarchy of effective field theories is used to separate the contributions from different momentum scales and to calculate the free energy of QCD at high temperature in powers of the coupling constant up to order $g^5$. The behavior of the perturb
Externí odkaz:
http://arxiv.org/abs/hep-ph/9608442
Autor:
Nieto, Agustin
Effective-field-theory methods are used to study the high T limit of QCD. These methods unravel the contributions to the free energy of QCD at high temperature from the scales T, gT, and g^2 T. The free energy is explicitly computed to order g^5. Imp
Externí odkaz:
http://arxiv.org/abs/hep-ph/9608381
Autor:
Braaten, Eric, Nieto, Agustin
Publikováno v:
Phys.Rev.D53:3421-3437,1996
Effective-field-theory methods are used to separate the free energy for a nonabelian gauge theory at high temperature $T$ into the contributions from the momentum scales $T$, $gT$, and $g^2T$, where $g$ is the coupling constant at the scale $2 \pi T$
Externí odkaz:
http://arxiv.org/abs/hep-ph/9510408