DFF 158/03/91 Correlators in the Heisenberg XX0 Chain as Fredholm Determinants
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چکیده
The two-point time and temperature dependent correlation functions for the XX0 one-dimensional model in constant magnetic field are represented (in the thermodynamical limit) as Fredholm determinants of linear integral operators.
منابع مشابه
ENSLAPP-L-381/92 Determinant Representation for the Time Dependent Correlation Functions in the XX0 Heisenberg Chain
Time dependent correlation functions in the Heisenberg XX0 chain in the external transverse magnetic field are calculated. For a finite chain normalized mean values of local spin products are represented as determinants of N × N matrices, N being the number of quasiparticles in the corresponding eigenstate of the Hamiltonian. In the thermodynamical limit (infinitely long chain), correlation fun...
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