Published March 1, 2006
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Journal Article
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Matrix product states represent ground states faithfully
- Creators
- Verstraete, F.
- Cirac, J. I.
Abstract
We quantify how well matrix product states approximate exact ground states of one-dimensional quantum spin systems as a function of the number of spins and the entropy of blocks of spins. We also investigate the convex set of local reduced density operators of translational invariant systems. The results give a theoretical justification for the high accuracy of renormalization group algorithms and justifies their use even in the case of critical systems.
Additional Information
©2006 The American Physical Society (Received 1 June 2005; published 20 March 2006) We thank O. Syljuåsen for sending us his Monte Carlo data about the 2D XXZ model, G. Vidal for interesting discussions, and T. Osborne for pointing out Ref. 27. Work supported by European projects, der Bayerischen Staatsregierung and the Gordon and Betty Moore Foundation.Files
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Additional details
- Eprint ID
- 2716
- Resolver ID
- CaltechAUTHORS:VERprb06
- Created
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2006-04-23Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field