منابع مشابه
Universal spectral correlations of the Dirac operator at finite temperature
Using the graded eigenvalue method and a recently computed extension of the Itzykson-Zuber integral to complex matrices, we compute the k-point spectral correlation functions of the Dirac operator in a chiral random matrix model with a deterministic diagonal matrix added. We obtain results both on the scale of the mean level spacing and on the microscopic scale. We find that the microscopic spe...
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B. Fauseweh,1,* F. Groitl,2,3,† T. Keller,4,5 K. Rolfs,6 D. A. Tennant,7 K. Habicht,8 and G. S. Uhrig1,‡ 1Lehrstuhl für Theoretische Physik I, Technische Universität Dortmund, Otto-Hahn Straße 4, 44221 Dortmund, Germany 2Laboratory for Quantum Magnetism, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland 3Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, ...
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After having developed a method that measures real time evolution of quantum systems at a finite temperature, we present here the simplest field theory where this scheme can be applied to, namely the 1 + 1 Ising model. We will compute the probability that if a given spin is up, some other spin will be up after a time t, the whole system being at temperature T . We can thus study spatial correla...
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ژورنال
عنوان ژورنال: Quantum
سال: 2018
ISSN: 2521-327X
DOI: 10.22331/q-2018-11-19-107