Murg, V. and Verstraete, F. and Cirac, J. I. (2005) Efficient Evaluation of Partition Functions of Inhomogeneous Many-Body Spin Systems. Physical Review Letters, 95 (5). Art. No. 057206. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:MURprl05
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Abstract
We present a numerical method to evaluate partition functions and associated correlation functions of inhomogeneous 2D classical spin systems and 1D quantum spin systems. The method is scalable and has a controlled error. We illustrate the algorithm by calculating the finite-temperature properties of bosonic particles in 1D optical lattices, as realized in current experiments.
| Item Type: | Article |
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| Additional Information: | ©2005 The American Physical Society (Received 20 January 2005; published 28 July 2005) We thank M. A. Martin-Delgado and D. Porras for discussions. Work is supported by the DFG, European projects (IST and RTN) and the Kompetenznetzwerk der Bayrischen Staatsregierung Quanteninformation. |
| Subject Keywords: | many-body problems; spin systems; numerical analysis; correlation theory; boson systems |
| Record Number: | CaltechAUTHORS:MURprl05 |
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:MURprl05 |
| Alternative URL: | http://dx.doi.org/10.1103/PhysRevLett.95.057206 |
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| ID Code: | 3566 |
| Collection: | CaltechAUTHORS |
| Deposited By: | Archive Administrator |
| Deposited On: | 15 Jun 2006 |
| Last Modified: | 26 Dec 2012 08:55 |
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