Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble
We characterize correlations in polarization and time of photon pairs generated from a cold cloud of ^87 Rb atoms via a four-wave mixing process in a cascade level scheme. Quantum state tomography reveals entangled polarization states of high purity for each of the decay paths through two different...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2015-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/17/9/093034 |
| _version_ | 1797751099680096256 |
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| author | Gurpreet Kaur Gulati Bharath Srivathsan Brenda Chng Alessandro Cerè Christian Kurtsiefer |
| author_facet | Gurpreet Kaur Gulati Bharath Srivathsan Brenda Chng Alessandro Cerè Christian Kurtsiefer |
| author_sort | Gurpreet Kaur Gulati |
| collection | DOAJ |
| description | We characterize correlations in polarization and time of photon pairs generated from a cold cloud of ^87 Rb atoms via a four-wave mixing process in a cascade level scheme. Quantum state tomography reveals entangled polarization states of high purity for each of the decay paths through two different intermediate hyperfine levels. When allowing both decay paths, we observe quantum beats in time-resolved correlation measurements. |
| first_indexed | 2024-03-12T16:42:29Z |
| format | Article |
| id | doaj.art-6b0901a70f614fdeaec855373be39f42 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:42:29Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-6b0901a70f614fdeaec855373be39f422023-08-08T14:22:52ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117909303410.1088/1367-2630/17/9/093034Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensembleGurpreet Kaur Gulati0Bharath Srivathsan1Brenda Chng2Alessandro Cerè3Christian Kurtsiefer4https://orcid.org/0000-0003-2190-0684Center for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543, SingaporeCenter for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543, SingaporeCenter for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543, SingaporeCenter for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543, SingaporeCenter for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543, Singapore; Department of Physics, National University of Singapore , 2 Science Drive 3, 117542, SingaporeWe characterize correlations in polarization and time of photon pairs generated from a cold cloud of ^87 Rb atoms via a four-wave mixing process in a cascade level scheme. Quantum state tomography reveals entangled polarization states of high purity for each of the decay paths through two different intermediate hyperfine levels. When allowing both decay paths, we observe quantum beats in time-resolved correlation measurements.https://doi.org/10.1088/1367-2630/17/9/093034entangled photon pairsquantum beatsfour-wave mixing42.50.Dv03.65.Wj03.67.Bg |
| spellingShingle | Gurpreet Kaur Gulati Bharath Srivathsan Brenda Chng Alessandro Cerè Christian Kurtsiefer Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble New Journal of Physics entangled photon pairs quantum beats four-wave mixing 42.50.Dv 03.65.Wj 03.67.Bg |
| title | Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble |
| title_full | Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble |
| title_fullStr | Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble |
| title_full_unstemmed | Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble |
| title_short | Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble |
| title_sort | polarization entanglement and quantum beats of photon pairs from four wave mixing in a cold 87rb ensemble |
| topic | entangled photon pairs quantum beats four-wave mixing 42.50.Dv 03.65.Wj 03.67.Bg |
| url | https://doi.org/10.1088/1367-2630/17/9/093034 |
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