期刊
PHYSICAL REVIEW B
卷 62, 期 7, 页码 4191-4193出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.62.4191
关键词
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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 density-matrix renormalization-group method, can be seen.
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