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Article: A global quantum Monte Carlo approach for the persistent current in an Aharonov-Bohm ring with interacting electrons
Title | A global quantum Monte Carlo approach for the persistent current in an Aharonov-Bohm ring with interacting electrons |
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Authors | |
Issue Date | 1996 |
Publisher | Institute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpcm |
Citation | Journal Of Physics Condensed Matter, 1996, v. 8 n. 30, p. L413-L420 How to Cite? |
Abstract | We propose a quantum Monte Carlo approach for the study of the thermo-equilibrium persistent current in an Aharonov-Bohm ring with interacting electrons. From topological considerations we derive a formula for the current, which leads to a global quantum Monte Carlo algorithm to evaluate the global current-phase relation at a given temperature without going into simulations point-by-point in the phase. Notable features in the present approach are: (i) the problem of complex elements in the representation of the partition function is well-handled, (ii) being robust against possible randomness in the Hamiltonian, the basic formula captures all phase-dependent physics and hence makes the simulation itself extremely efficient and reliable. |
Persistent Identifier | http://hdl.handle.net/10722/174665 |
ISSN | 2023 Impact Factor: 2.3 2023 SCImago Journal Rankings: 0.676 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Wang, Q | en_US |
dc.contributor.author | Zhu, JX | en_US |
dc.contributor.author | Wang, ZD | en_US |
dc.date.accessioned | 2012-11-26T08:46:47Z | - |
dc.date.available | 2012-11-26T08:46:47Z | - |
dc.date.issued | 1996 | en_US |
dc.identifier.citation | Journal Of Physics Condensed Matter, 1996, v. 8 n. 30, p. L413-L420 | en_US |
dc.identifier.issn | 0953-8984 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/174665 | - |
dc.description.abstract | We propose a quantum Monte Carlo approach for the study of the thermo-equilibrium persistent current in an Aharonov-Bohm ring with interacting electrons. From topological considerations we derive a formula for the current, which leads to a global quantum Monte Carlo algorithm to evaluate the global current-phase relation at a given temperature without going into simulations point-by-point in the phase. Notable features in the present approach are: (i) the problem of complex elements in the representation of the partition function is well-handled, (ii) being robust against possible randomness in the Hamiltonian, the basic formula captures all phase-dependent physics and hence makes the simulation itself extremely efficient and reliable. | en_US |
dc.language | eng | en_US |
dc.publisher | Institute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpcm | en_US |
dc.relation.ispartof | Journal of Physics Condensed Matter | en_US |
dc.title | A global quantum Monte Carlo approach for the persistent current in an Aharonov-Bohm ring with interacting electrons | en_US |
dc.type | Article | en_US |
dc.identifier.email | Wang, ZD: zwang@hkucc.hku.hk | en_US |
dc.identifier.authority | Wang, ZD=rp00802 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1088/0953-8984/8/30/001 | en_US |
dc.identifier.scopus | eid_2-s2.0-0008018394 | en_US |
dc.identifier.hkuros | 20908 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0008018394&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 8 | en_US |
dc.identifier.issue | 30 | en_US |
dc.identifier.spage | L413 | en_US |
dc.identifier.epage | L420 | en_US |
dc.identifier.isi | WOS:A1996UZ48300001 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Wang, Q=36479467200 | en_US |
dc.identifier.scopusauthorid | Zhu, JX=7405688302 | en_US |
dc.identifier.scopusauthorid | Wang, ZD=14828459100 | en_US |
dc.identifier.issnl | 0953-8984 | - |