منابع مشابه
The Delta-hole Model at Finite Temperature *
The spectral function of pions interacting with a gas of nucleons and ∆ 33-resonances is investigated using the formalism of Thermo Field Dynamics. After a discussion of the zero ∆-width approximation at finite temperature, we take into account a constant width of the resonance. Apart from a full numerical calculation, we give analytical approximations to the pionic spectral function including ...
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Light-cone coordinates and supersymmetric discrete light-cone quantization are used to analyze the thermodynamics of two-dimensional supersymmetric quantum chromodynamics with a Chern–Simons term in the large-Nc approximation. This requires estimation of the entire spectrum of the theory, which is done with a new algorithm based on Lanczos iterations. Although this work is still in progress, so...
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متن کاملFinite-temperature properties of the two-dimensional Kondo lattice model
Using the recently developed Lanczos technique we study finite-temperature properties of the 2D Kondo lattice model at various fillings of the conduction band. At half filling the quasiparticle gap governs physical properties of the chemical potential and the charge susceptibility at small temperatures. In the intermediate coupling regime quasiparticle gap scales approximately linearly with the...
متن کاملThe two - dimensional O ( 3 ) nonlinear σ - model at finite temperature
We present a direct derivation of the thermodynamic integral equations of the O(3) nonlinear σ-model in two dimensions. January 1992, Phys.Lett.B, in press on leave from Departamento de Fisica, Universidade Federal de S.Carlos, C.P. 676 S.Carlos 13560, Brazil. [email protected] The two-dimensional O(3) nonlinear σ-model is a well known example of an exactly integrable field theory [2, 3] ...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1981
ISSN: 0375-9474
DOI: 10.1016/0375-9474(81)90558-3