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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/50071
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- Title
- Quantum phase-space simulations of fermions and bosons
- Author(s)
- Drummond, P. D.; Corney, J. F.
- Abstract
- We introduce a unified Gaussian quantum operator representation for fermions and bosons. The representation extends existing phase-space methods to Fermi systems as well as the important case of Fermi-Bose mixtures. It enables simulations of the dynamics and thermal equilibrium states of many-body quantum systems from first principles. As an example, we numerically calculate finite-temperature correlation functions for the Fermi Hubbard model, with no evidence of the Fermi sign problem.
- Publication type
- Journal article
- Source
- Computer Physics Communications: incorporating the proceedings of the Europhysics Conference on Computational Physics (CCP 2004), Genoa, Italy, 1-4 September 2004 / Mauro Ferrario, Simone Melchionna and Carlo Pierleoni (eds.), Vol. 169, no. 1-3 (2005), pp. 412-415
- Publication year
- 2005
- FOR Code(s)
- 02 Physical Sciences
- Keyword(s)
- Atomic physics; Error analysis; Fermi level; Fermions; Mathematical models; Monte Carlo methods; Problem solving; Quantum theory; Random processes; Sign problem; Simulation; Simulations; Stochastic; Thermal expansion
- Publisher
- Elsevier
- ISSN
- 0010-4655
- Publisher URL
- http://dx.doi.org/10.1016/j.cpc.2005.03.091
- Copyright
- Copyright © 2005 Elsevier B.V. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher.
- Full text
- Peer reviewed
