Matrix product purifications for canonical ensembles and quantum number distributions

Matrix product purifications (MPPs) are a very efficient tool for the simulation of strongly correlated quantum many-body systems at finite temperatures. When a system features symmetries, these can be used to reduce computation costs substantially. It is straightforward to compute an MPP of a grand...

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Veröffentlicht in:	Physical review. B 2016-09, Vol.94 (11), Article 115157
1. Verfasser:	Barthel, Thomas
Format:	Artikel
Sprache:	eng
Schlagworte:	Computational efficiency Condensed matter Decay Mathematical analysis Operators Purification Quantum numbers Symmetry
Online-Zugang:	Volltext
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