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On Density-Matrix Spectra for Two-Dimensional Quantum Systems

M. C. Chung·Ingo Peschel
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Abstract

For a two-dimensional system of coupled oscillators, the spectra of reduced density matrices can be obtained analytically. This provides an example where the features of these quantities, which are of central importance in numerical studies using the DMRG method, can be seen.

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M. C. Chung, Ingo Peschel. 2000-06-07. On Density-Matrix Spectra for Two-Dimensional Quantum Systems. https://doi.org/10.1103/physrevb.62.4191

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