Phys. Rev. Lett. 102, 190601 (2009) [4 pages]Minimally Entangled Typical Quantum States at Finite Temperature
See accompanying Physics Viewpoint We introduce a class of states, called minimally entangled typical thermal states, designed to resemble a typical state of a quantum system at finite temperature with a bias towards classical (minimally entangled) properties. These states reveal in an intuitive way properties such as short-range order which may often be hidden. A finite-T density matrix renormalization group algorithm is presented which is only modestly slower than the T=0 density matrix renormalization group. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.190601
DOI:
10.1103/PhysRevLett.102.190601
PACS:
05.50.+q, 03.67.Lx, 75.10.Jm, 75.40.Mg
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