Quasieigenstate coalescence in an atom-cavity quantum composite
We report the first direct observation of an exceptional point (EP) in an open quantum composite of a single atom and a high-Q cavity mode. The atom-cavity coupling constant was made a continuous variable by utilizing the multisublevel nature of a single rubidium atom when it is optimally coupled to...
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| Veröffentlicht in: | Physical review letters 2010-04, Vol.104 (15), p.153601-153601, Article 153601 |
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| container_end_page | 153601 |
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| container_issue | 15 |
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| container_title | Physical review letters |
| container_volume | 104 |
| creator | Choi, Youngwoon Kang, Sungsam Lim, Sooin Kim, Wookrae Kim, Jung-Ryul Lee, Jai-Hyung An, Kyungwon |
| description | We report the first direct observation of an exceptional point (EP) in an open quantum composite of a single atom and a high-Q cavity mode. The atom-cavity coupling constant was made a continuous variable by utilizing the multisublevel nature of a single rubidium atom when it is optimally coupled to the cavity mode. The spectroscopic properties of quasieigenstates of the atom-cavity composite were experimentally investigated near the EP. Branch-point singularity of quasieigenenergies was observed and its 4pi symmetry was demonstrated. Consequently, the cavity transmission at the quasieigenstate was observed to exhibit a critical behavior at the EP. |
| doi_str_mv | 10.1103/PhysRevLett.104.153601 |
| format | Article |
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The atom-cavity coupling constant was made a continuous variable by utilizing the multisublevel nature of a single rubidium atom when it is optimally coupled to the cavity mode. The spectroscopic properties of quasieigenstates of the atom-cavity composite were experimentally investigated near the EP. Branch-point singularity of quasieigenenergies was observed and its 4pi symmetry was demonstrated. Consequently, the cavity transmission at the quasieigenstate was observed to exhibit a critical behavior at the EP.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.104.153601</identifier><identifier>PMID: 20481988</identifier><language>eng</language><publisher>United States</publisher><subject>ALKALI METALS ; ATOMIC AND MOLECULAR PHYSICS ; ATOMS ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; COALESCENCE ; COUPLING CONSTANTS ; EIGENSTATES ; ELEMENTS ; MECHANICS ; METALS ; QUANTUM MECHANICS ; RUBIDIUM ; SINGULARITY ; SYMMETRY</subject><ispartof>Physical review letters, 2010-04, Vol.104 (15), p.153601-153601, Article 153601</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-7bfe54369911da2a137b4fe7b34f1668a5a8232ee800e0cb246872bd693caf503</citedby><cites>FETCH-LOGICAL-c391t-7bfe54369911da2a137b4fe7b34f1668a5a8232ee800e0cb246872bd693caf503</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,2863,2864,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20481988$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/21410714$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Choi, Youngwoon</creatorcontrib><creatorcontrib>Kang, Sungsam</creatorcontrib><creatorcontrib>Lim, Sooin</creatorcontrib><creatorcontrib>Kim, Wookrae</creatorcontrib><creatorcontrib>Kim, Jung-Ryul</creatorcontrib><creatorcontrib>Lee, Jai-Hyung</creatorcontrib><creatorcontrib>An, Kyungwon</creatorcontrib><title>Quasieigenstate coalescence in an atom-cavity quantum composite</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We report the first direct observation of an exceptional point (EP) in an open quantum composite of a single atom and a high-Q cavity mode. 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Consequently, the cavity transmission at the quasieigenstate was observed to exhibit a critical behavior at the EP.</description><subject>ALKALI METALS</subject><subject>ATOMIC AND MOLECULAR PHYSICS</subject><subject>ATOMS</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COALESCENCE</subject><subject>COUPLING CONSTANTS</subject><subject>EIGENSTATES</subject><subject>ELEMENTS</subject><subject>MECHANICS</subject><subject>METALS</subject><subject>QUANTUM MECHANICS</subject><subject>RUBIDIUM</subject><subject>SINGULARITY</subject><subject>SYMMETRY</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNpNkFtLw0AQhRdRbK3-hRLwwafUmd3NbvIkIt6g4AV9XjbbiY00SZvdFPrvTUkVYWBg-M4czmFsijBDBHH9utz5d9rOKYQZgpxhIhTgERsj6CzWiPKYjQEExhmAHrEz778BALlKT9mIg0wxS9Mxu3nrrC-p_KLaBxsoco1dkXdUO4rKOrL9hKaKnd2WYRdtOluHruqpat34MtA5OynsytPFYU_Y58P9x91TPH95fL67ncdOZBhinReUSKGyDHFhuUWhc1mQzoUsUKnUJjblghOlAAQu51KlmucLlQlniwTEhF0OfxsfSuNdb-2WrqlrcsFwlH1slD11NVDrttl05IOpyj7LamVrajpvtBCJzLjak2ogXdt431Jh1m1Z2XZnEMy-YfOv4f4mzdBwL5weLLq8osWf7LdS8QObfHmi</recordid><startdate>20100416</startdate><enddate>20100416</enddate><creator>Choi, Youngwoon</creator><creator>Kang, Sungsam</creator><creator>Lim, Sooin</creator><creator>Kim, Wookrae</creator><creator>Kim, Jung-Ryul</creator><creator>Lee, Jai-Hyung</creator><creator>An, Kyungwon</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20100416</creationdate><title>Quasieigenstate coalescence in an atom-cavity quantum composite</title><author>Choi, Youngwoon ; Kang, Sungsam ; Lim, Sooin ; Kim, Wookrae ; Kim, Jung-Ryul ; Lee, Jai-Hyung ; An, Kyungwon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-7bfe54369911da2a137b4fe7b34f1668a5a8232ee800e0cb246872bd693caf503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>ALKALI METALS</topic><topic>ATOMIC AND MOLECULAR PHYSICS</topic><topic>ATOMS</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>COALESCENCE</topic><topic>COUPLING CONSTANTS</topic><topic>EIGENSTATES</topic><topic>ELEMENTS</topic><topic>MECHANICS</topic><topic>METALS</topic><topic>QUANTUM MECHANICS</topic><topic>RUBIDIUM</topic><topic>SINGULARITY</topic><topic>SYMMETRY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Choi, Youngwoon</creatorcontrib><creatorcontrib>Kang, Sungsam</creatorcontrib><creatorcontrib>Lim, Sooin</creatorcontrib><creatorcontrib>Kim, Wookrae</creatorcontrib><creatorcontrib>Kim, Jung-Ryul</creatorcontrib><creatorcontrib>Lee, Jai-Hyung</creatorcontrib><creatorcontrib>An, Kyungwon</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Choi, Youngwoon</au><au>Kang, Sungsam</au><au>Lim, Sooin</au><au>Kim, Wookrae</au><au>Kim, Jung-Ryul</au><au>Lee, Jai-Hyung</au><au>An, Kyungwon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quasieigenstate coalescence in an atom-cavity quantum composite</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2010-04-16</date><risdate>2010</risdate><volume>104</volume><issue>15</issue><spage>153601</spage><epage>153601</epage><pages>153601-153601</pages><artnum>153601</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We report the first direct observation of an exceptional point (EP) in an open quantum composite of a single atom and a high-Q cavity mode. 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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2010-04, Vol.104 (15), p.153601-153601, Article 153601 |
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| language | eng |
| recordid | cdi_osti_scitechconnect_21410714 |
| source | American Physical Society Journals |
| subjects | ALKALI METALS ATOMIC AND MOLECULAR PHYSICS ATOMS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COALESCENCE COUPLING CONSTANTS EIGENSTATES ELEMENTS MECHANICS METALS QUANTUM MECHANICS RUBIDIUM SINGULARITY SYMMETRY |
| title | Quasieigenstate coalescence in an atom-cavity quantum composite |
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