Multiconfigurational symmetrized-projector quantum Monte Carlo method for low-lying excited states of the Hubbard model

Srinivasan, Bhargavi and Ramasesha, S and Krishnamurthy, HR (1996) Multiconfigurational symmetrized-projector quantum Monte Carlo method for low-lying excited states of the Hubbard model. In: Physical Review B, 54 (4). R2276-R2279.

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Abstract

We develop a multiconfigurational symmetrized-projector quantum Monte Carlo MSPQMC method to calculate excited-state properties of Hubbard models. We compare the MSPQMC results for finite Hubbard chains with exact results where available or with density-matrix renormalization-group results for longer chains. The energies and correlation functions of the excited states are in good agreement with those obtained from the alternate techniques.

Item Type:	Journal Article
Publication:	Physical Review B
Publisher:	American Physical Society
Additional Information:	Copyright of this article belongs to American Physical Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics
Date Deposited:	15 Dec 2006
Last Modified:	19 Sep 2010 04:33
URI:	http://eprints.iisc.ac.in/id/eprint/9126

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