Nonlinear entangled quantum dynamics in many-body systems with strong electron correlation
DC Field | Value | Language |
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dc.contributor.author | Jongbae Hong | - |
dc.date.available | 2017-05-19T01:12:19Z | - |
dc.date.created | 2017-05-16 | - |
dc.date.issued | 2017-04 | - |
dc.identifier.issn | 0217-9792 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/3434 | - |
dc.description.abstract | A quantum impurity system out of equilibrium comprises two metallic reservoirs with dierent chemical potentials and one mediating spin impurity between them. We study the highly nonlinear tunneling conductance of this system, and clarify that three coherent peaks, one zero-bias peak and two side peaks, naturally appear in the tunneling conductance. We use the Liouvillian approach, in which a complete set of basis operators is available, and construct a Liouville matrix to obtain Green's function at the mediating site. We show that the two coherent side peaks are the outcome of steady-state nonequilibrium combined with strong electron correlation at the mediating site. Tunneling in the quantum impurity system out of equilibrium is performed by an entangled state which is a linear combination of two Kondo singlets formed by the spin at the mediating site and the coherent spins in each reservoir. The uctuation by incoherent spins is also included. The spectral weights and positions of the three coherent peaks are analytically discussed via atomic limit analysis. Our theoretical results well t experimental data obtained for quantum point contacts with symmetric and asymmetric Kondo couplings. (c) World Scientic Publishing Company | - |
dc.description.uri | 1 | - |
dc.language | 영어 | - |
dc.publisher | WORLD SCIENTIFIC PUBL CO PTE LTD | - |
dc.subject | Quantum impurity system | - |
dc.subject | out of equilibrium | - |
dc.subject | entangled state tunneling. | - |
dc.title | Nonlinear entangled quantum dynamics in many-body systems with strong electron correlation | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000400145900010 | - |
dc.identifier.scopusid | 2-s2.0-85018709768 | - |
dc.identifier.rimsid | 59398 | ko |
dc.date.tcdate | 2018-10-01 | - |
dc.contributor.affiliatedAuthor | Jongbae Hong | - |
dc.identifier.doi | 10.1142/S0217979217420097 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF MODERN PHYSICS B, v.31, no.10, pp.1742009-1 - 1742009-22 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF MODERN PHYSICS B | - |
dc.citation.volume | 31 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1742009-1 | - |
dc.citation.endPage | 1742009-22 | - |
dc.date.scptcdate | 2018-10-01 | - |
dc.description.scptc | 0 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | KONDO | - |
dc.subject.keywordPlus | TRANSISTOR | - |
dc.subject.keywordPlus | FORMALISM | - |
dc.subject.keywordAuthor | Quantum impurity system | - |
dc.subject.keywordAuthor | out of equilibrium | - |
dc.subject.keywordAuthor | entangled state tunneling | - |