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Title:

Obtaining highly excited eigenstates of the localized XX chain via DMRG-X

Document type:
Zeitschriftenaufsatz
Author(s):
Devakul, Trithep; Khemani, Vedika; Pollmann, Frank; Huse, David A.; Sondhi, S. L.
Abstract:
We benchmark a variant of the recently introduced density matrix renormalization group (DMRG)-X algorithm against exact results for the localized random field XX chain. We find that the eigenstates obtained via DMRG-X exhibit a highly accurate l-bit description for system sizes much bigger than the direct, many-body, exact diagonalization in the spin variables is able to access. We take advantage of the underlying free fermion description of the XX model to accurately test the strengths and...     »
Journal title:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 2017-10
Year:
2017
Journal volume:
375
Journal issue:
2108
Pages contribution:
20160431
Fulltext / DOI:
doi:10.1098/rsta.2016.0431
Publisher:
The Royal Society
E-ISSN:
1364-503X1471-2962
Date of publication:
30.10.2017
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