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Density-matrix renormalization group study of many-body localization in floquet eigenstates

MPG-Autoren
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Pollmann,  Frank
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Sondhi,  Shivaji L.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Moessner,  Roderich
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Zitation

Zhang, C., Pollmann, F., Sondhi, S. L., & Moessner, R. (2017). Density-matrix renormalization group study of many-body localization in floquet eigenstates. Annalen der Physik, 529(7): 1600294. doi:10.1002/andp.201600294.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-D035-7
Zusammenfassung
We generalize the recently introduced Density-Matrix Renormalization Group (DMRG-X) [Khemani et al, PRL 2016] algorithm to obtain Floquet eigenstates of one-dimensional, periodically driven many-body localized systems. This generalization is made possible by the fact that the time-evolution operator for a period can be efficiently represented using a matrix-product operator. We first benchmark the method by comparing to exact diagonalization for small systems. We then obtain Floquet eigenstates for larger systems and show unambiguously that the characteristic area-law scaling remains robust.