Loss of coherence in cavity-polariton condensates: Effect of disorder versus exciton reservoir
Time evolution of long-range spatial coherence in a freely decaying cavity-polariton condensate excited resonantly in a high-Q GaAs microcavity is found to be qualitatively different from that in nonresonantly excited condensates. The first-order spatial correlation function g(1)(r1,r2) in response...
Gespeichert in:
| Veröffentlicht in: | Physical review. B 2016-11, Vol.94 (19), Article 195302 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | 19 |
| container_start_page | |
| container_title | Physical review. B |
| container_volume | 94 |
| creator | Demenev, A. A. Grishina, Ya. V. Novikov, S. I. Kulakovskii, V. D. Schneider, C. Höfling, S. |
| description | Time evolution of long-range spatial coherence in a freely decaying cavity-polariton condensate excited resonantly in a high-Q GaAs microcavity is found to be qualitatively different from that in nonresonantly excited condensates. The first-order spatial correlation function g(1)(r1,r2) in response to resonant 1.5 ps pump pulses at normal incidence leaving the exciton reservoir empty is found to be nearly independent of the excitation density. g(1) exceeds 0.7 within the excited spot and decreases very slowly in the decaying and expanding condensate. It remains above 0.5 until the polariton blue shift α|ψ2| gets comparable to the characteristic amplitude of the disorder potential δELP. The disorder is found to reveal itself at α|ψ2|≲δELP in fast and short-range phase fluctuations as well as vortex formation. They lead to oscillations in g(1)(t), but have little effect on the overall coherence, which is well reproduced in the framework of the Gross-Pitaevskii equations. |
| doi_str_mv | 10.1103/PhysRevB.94.195302 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2126923860</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2126923860</sourcerecordid><originalsourceid>FETCH-LOGICAL-c275t-88453bfc58677a29f196f5c1d27bdf2ceeaea120fd2db1f2166fb70e973dcb93</originalsourceid><addsrcrecordid>eNo9kE1LAzEQhoMoWGr_gKcFz1vzsZvseNNSq1BQpGdDNpnQLXVTk-1i_71bq55mGJ6Z4X0IuWZ0yhgVt6_rQ3rD_mEKxZRBKSg_IyNeSMgBJJz_9yW9JJOUNpRSJikoCiPyvgwpZcFnNqwxYmsxa9rMmr7pDvkubE1sujAMQuuwTabDdJfNvUfbHZdck0J0GLMeY9qnDL_sDx4xYexDE6_IhTfbhJPfOiarx_lq9pQvXxbPs_tlbrkqu7yqilLU3paVVMpw8AykLy1zXNXOc4to0DBOveOuZp4zKX2tKIISztYgxuTmdHYXw-ceU6c3YR_b4aPmjEvgopJ0oPiJsnEIHdHrXWw-TDxoRvXRpP4zqaHQJ5PiG3yfaoo</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2126923860</pqid></control><display><type>article</type><title>Loss of coherence in cavity-polariton condensates: Effect of disorder versus exciton reservoir</title><source>American Physical Society Journals</source><creator>Demenev, A. A. ; Grishina, Ya. V. ; Novikov, S. I. ; Kulakovskii, V. D. ; Schneider, C. ; Höfling, S.</creator><creatorcontrib>Demenev, A. A. ; Grishina, Ya. V. ; Novikov, S. I. ; Kulakovskii, V. D. ; Schneider, C. ; Höfling, S.</creatorcontrib><description>Time evolution of long-range spatial coherence in a freely decaying cavity-polariton condensate excited resonantly in a high-Q GaAs microcavity is found to be qualitatively different from that in nonresonantly excited condensates. The first-order spatial correlation function g(1)(r1,r2) in response to resonant 1.5 ps pump pulses at normal incidence leaving the exciton reservoir empty is found to be nearly independent of the excitation density. g(1) exceeds 0.7 within the excited spot and decreases very slowly in the decaying and expanding condensate. It remains above 0.5 until the polariton blue shift α|ψ2| gets comparable to the characteristic amplitude of the disorder potential δELP. The disorder is found to reveal itself at α|ψ2|≲δELP in fast and short-range phase fluctuations as well as vortex formation. They lead to oscillations in g(1)(t), but have little effect on the overall coherence, which is well reproduced in the framework of the Gross-Pitaevskii equations.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.94.195302</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Blue shift ; Condensates ; Decay rate ; Excitons ; Polaritons ; Variation</subject><ispartof>Physical review. B, 2016-11, Vol.94 (19), Article 195302</ispartof><rights>Copyright American Physical Society Nov 15, 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c275t-88453bfc58677a29f196f5c1d27bdf2ceeaea120fd2db1f2166fb70e973dcb93</citedby><cites>FETCH-LOGICAL-c275t-88453bfc58677a29f196f5c1d27bdf2ceeaea120fd2db1f2166fb70e973dcb93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,2863,2864,27901,27902</link.rule.ids></links><search><creatorcontrib>Demenev, A. A.</creatorcontrib><creatorcontrib>Grishina, Ya. V.</creatorcontrib><creatorcontrib>Novikov, S. I.</creatorcontrib><creatorcontrib>Kulakovskii, V. D.</creatorcontrib><creatorcontrib>Schneider, C.</creatorcontrib><creatorcontrib>Höfling, S.</creatorcontrib><title>Loss of coherence in cavity-polariton condensates: Effect of disorder versus exciton reservoir</title><title>Physical review. B</title><description>Time evolution of long-range spatial coherence in a freely decaying cavity-polariton condensate excited resonantly in a high-Q GaAs microcavity is found to be qualitatively different from that in nonresonantly excited condensates. The first-order spatial correlation function g(1)(r1,r2) in response to resonant 1.5 ps pump pulses at normal incidence leaving the exciton reservoir empty is found to be nearly independent of the excitation density. g(1) exceeds 0.7 within the excited spot and decreases very slowly in the decaying and expanding condensate. It remains above 0.5 until the polariton blue shift α|ψ2| gets comparable to the characteristic amplitude of the disorder potential δELP. The disorder is found to reveal itself at α|ψ2|≲δELP in fast and short-range phase fluctuations as well as vortex formation. They lead to oscillations in g(1)(t), but have little effect on the overall coherence, which is well reproduced in the framework of the Gross-Pitaevskii equations.</description><subject>Blue shift</subject><subject>Condensates</subject><subject>Decay rate</subject><subject>Excitons</subject><subject>Polaritons</subject><subject>Variation</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LAzEQhoMoWGr_gKcFz1vzsZvseNNSq1BQpGdDNpnQLXVTk-1i_71bq55mGJ6Z4X0IuWZ0yhgVt6_rQ3rD_mEKxZRBKSg_IyNeSMgBJJz_9yW9JJOUNpRSJikoCiPyvgwpZcFnNqwxYmsxa9rMmr7pDvkubE1sujAMQuuwTabDdJfNvUfbHZdck0J0GLMeY9qnDL_sDx4xYexDE6_IhTfbhJPfOiarx_lq9pQvXxbPs_tlbrkqu7yqilLU3paVVMpw8AykLy1zXNXOc4to0DBOveOuZp4zKX2tKIISztYgxuTmdHYXw-ceU6c3YR_b4aPmjEvgopJ0oPiJsnEIHdHrXWw-TDxoRvXRpP4zqaHQJ5PiG3yfaoo</recordid><startdate>20161115</startdate><enddate>20161115</enddate><creator>Demenev, A. A.</creator><creator>Grishina, Ya. V.</creator><creator>Novikov, S. I.</creator><creator>Kulakovskii, V. D.</creator><creator>Schneider, C.</creator><creator>Höfling, S.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20161115</creationdate><title>Loss of coherence in cavity-polariton condensates: Effect of disorder versus exciton reservoir</title><author>Demenev, A. A. ; Grishina, Ya. V. ; Novikov, S. I. ; Kulakovskii, V. D. ; Schneider, C. ; Höfling, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c275t-88453bfc58677a29f196f5c1d27bdf2ceeaea120fd2db1f2166fb70e973dcb93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Blue shift</topic><topic>Condensates</topic><topic>Decay rate</topic><topic>Excitons</topic><topic>Polaritons</topic><topic>Variation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Demenev, A. A.</creatorcontrib><creatorcontrib>Grishina, Ya. V.</creatorcontrib><creatorcontrib>Novikov, S. I.</creatorcontrib><creatorcontrib>Kulakovskii, V. D.</creatorcontrib><creatorcontrib>Schneider, C.</creatorcontrib><creatorcontrib>Höfling, S.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Demenev, A. A.</au><au>Grishina, Ya. V.</au><au>Novikov, S. I.</au><au>Kulakovskii, V. D.</au><au>Schneider, C.</au><au>Höfling, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Loss of coherence in cavity-polariton condensates: Effect of disorder versus exciton reservoir</atitle><jtitle>Physical review. B</jtitle><date>2016-11-15</date><risdate>2016</risdate><volume>94</volume><issue>19</issue><artnum>195302</artnum><issn>2469-9950</issn><eissn>2469-9969</eissn><abstract>Time evolution of long-range spatial coherence in a freely decaying cavity-polariton condensate excited resonantly in a high-Q GaAs microcavity is found to be qualitatively different from that in nonresonantly excited condensates. The first-order spatial correlation function g(1)(r1,r2) in response to resonant 1.5 ps pump pulses at normal incidence leaving the exciton reservoir empty is found to be nearly independent of the excitation density. g(1) exceeds 0.7 within the excited spot and decreases very slowly in the decaying and expanding condensate. It remains above 0.5 until the polariton blue shift α|ψ2| gets comparable to the characteristic amplitude of the disorder potential δELP. The disorder is found to reveal itself at α|ψ2|≲δELP in fast and short-range phase fluctuations as well as vortex formation. They lead to oscillations in g(1)(t), but have little effect on the overall coherence, which is well reproduced in the framework of the Gross-Pitaevskii equations.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevB.94.195302</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2469-9950 |
| ispartof | Physical review. B, 2016-11, Vol.94 (19), Article 195302 |
| issn | 2469-9950 2469-9969 |
| language | eng |
| recordid | cdi_proquest_journals_2126923860 |
| source | American Physical Society Journals |
| subjects | Blue shift Condensates Decay rate Excitons Polaritons Variation |
| title | Loss of coherence in cavity-polariton condensates: Effect of disorder versus exciton reservoir |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T16%3A46%3A34IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Loss%20of%20coherence%20in%20cavity-polariton%20condensates:%20Effect%20of%20disorder%20versus%20exciton%20reservoir&rft.jtitle=Physical%20review.%20B&rft.au=Demenev,%20A.%20A.&rft.date=2016-11-15&rft.volume=94&rft.issue=19&rft.artnum=195302&rft.issn=2469-9950&rft.eissn=2469-9969&rft_id=info:doi/10.1103/PhysRevB.94.195302&rft_dat=%3Cproquest_cross%3E2126923860%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2126923860&rft_id=info:pmid/&rfr_iscdi=true |