Density-matrix spectra for integrable models
classification
❄️ cond-mat.stat-mech
keywords
density-matrixintegrablemodelsspectraanalyticallycalculationscaseschain
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The spectra which occur in numerical density-matrix renormalization group (DMRG) calculations for quantum chains can be obtained analytically for integrable models via corner transfer matrices. This is shown in detail for the transverse Ising chain and the uniaxial XXZ Heisenberg model and explains in particular their exponential character in these cases.
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