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arXiv:cond-mat/0209444 · Physical Review Letters

Broken Time-Reversal Symmetry in Strongly Correlated Ladder Structures

Ulrich Schollwöck, Sudip Chakravarty, John Ove Fjærestad, John Bradley Marston, Matthias Troyer

Published May 5, 2003• 70 citations
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Abstract

We provide, for the first time, in a doped strongly correlated system (two-leg ladder), a controlled theoretical demonstration of the existence of a state in which long-range ordered orbital currents are arranged in a staggered pattern, coexisting with a charge density wave. The method used is the highly accurate density-matrix renormalization group technique. This brings us closer to recent proposals that this order is realized in the enigmatic pseudogap phase of the cuprate high temperature superconductors.

DOI
10.1103/physrevlett.90.186401

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