Post-matrix product state methods: To tangent space and beyond

We develop in full detail the formalism of tangent states to the manifold of matrix product states, and show how they naturally appear in studying time evolution, excitations, and spectral functions. We focus on the case of systems with translation invariance in the thermodynamic limit, where moment...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-08, Vol.88 (7), Article 075133
Hauptverfasser:	Haegeman, Jutho, Osborne, Tobias J., Verstraete, Frank
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter Evolution Excitation spectra Formalism Production methods Spectra Tangents Translations
Online-Zugang:	Volltext
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