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Variational study of a two-level system coupled to a harmonic oscillator in an ultrastrong-coupling regime
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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Hwang, Myung-Joong | - |
| dc.contributor.author | Choi, Mahn-Soo | - |
| dc.date.accessioned | 2021-09-08T00:47:45Z | - |
| dc.date.available | 2021-09-08T00:47:45Z | - |
| dc.date.created | 2021-06-14 | - |
| dc.date.issued | 2010-08-30 | - |
| dc.identifier.issn | 1050-2947 | - |
| dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/115856 | - |
| dc.description.abstract | The nonclassical behavior of a two-level system coupled to a harmonic oscillator is investigated in the ultrastrong coupling regime. We revisit the variational solution of the ground state and find that the existing solutions do not account accurately for nonclassical effects such as squeezing. We suggest a trial wave function and demonstrate that it has an excellent accuracy for the quantum correlation effects as well as for the energy. | - |
| dc.language | English | - |
| dc.language.iso | en | - |
| dc.publisher | AMER PHYSICAL SOC | - |
| dc.subject | GROUND-STATE | - |
| dc.subject | QUANTUM | - |
| dc.title | Variational study of a two-level system coupled to a harmonic oscillator in an ultrastrong-coupling regime | - |
| dc.type | Article | - |
| dc.contributor.affiliatedAuthor | Choi, Mahn-Soo | - |
| dc.identifier.doi | 10.1103/PhysRevA.82.025802 | - |
| dc.identifier.scopusid | 2-s2.0-77956310102 | - |
| dc.identifier.wosid | 000281351600031 | - |
| dc.identifier.bibliographicCitation | PHYSICAL REVIEW A, v.82, no.2 | - |
| dc.relation.isPartOf | PHYSICAL REVIEW A | - |
| dc.citation.title | PHYSICAL REVIEW A | - |
| dc.citation.volume | 82 | - |
| dc.citation.number | 2 | - |
| dc.type.rims | ART | - |
| dc.type.docType | Article | - |
| dc.description.journalClass | 1 | - |
| dc.description.journalRegisteredClass | scie | - |
| dc.description.journalRegisteredClass | scopus | - |
| dc.relation.journalResearchArea | Optics | - |
| dc.relation.journalResearchArea | Physics | - |
| dc.relation.journalWebOfScienceCategory | Optics | - |
| dc.relation.journalWebOfScienceCategory | Physics, Atomic, Molecular & Chemical | - |
| dc.subject.keywordPlus | GROUND-STATE | - |
| dc.subject.keywordPlus | QUANTUM | - |
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