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Title:

Density matrix renormalization group on a cylinder in mixed real and momentum space

Document type:
Zeitschriftenaufsatz
Author(s):
Motruk, Johannes; Zaletel, Michael P.; Mong, Roger S. K.; Pollmann, Frank
Abstract:
We develop a variant of the density matrix renormalization group (DMRG) algorithm for two-dimensional cylinders that uses a real space representation in the direction along the axis of the cylinder and a momentum space representation in the direction around the circumference. The mixed representation allows us to use the momentum around the cylinder as a conserved quantity in the DMRG algorithm. Compared with the traditional purely real-space approach, we find a significant speedup in computatio...     »
Journal title:
Physical Review B 2016-04
Year:
2016
Journal volume:
93
Journal issue:
15
Fulltext / DOI:
doi:10.1103/physrevb.93.155139
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
21.04.2016
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