Quantum information approach to Bose–Einstein condensation of composite bosons
We consider composite bosons (cobosons) comprised two elementary particles, fermions or bosons, in an entangled state. First, we show that the effective number of cobosons implies the level of correlation between the two constituent particles. For the maximum level of correlation, the effective numb...
| 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/10.1088/1367-2630/17/11/113015 |
| _version_ | 1827873792364380160 |
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| author | Su-Yong Lee Jayne Thompson Sadegh Raeisi Paweł Kurzyński Dagomir Kaszlikowski |
| author_facet | Su-Yong Lee Jayne Thompson Sadegh Raeisi Paweł Kurzyński Dagomir Kaszlikowski |
| author_sort | Su-Yong Lee |
| collection | DOAJ |
| description | We consider composite bosons (cobosons) comprised two elementary particles, fermions or bosons, in an entangled state. First, we show that the effective number of cobosons implies the level of correlation between the two constituent particles. For the maximum level of correlation, the effective number of cobosons is the same as the total number of cobosons, which can exhibit the original Bose–Einstein condensation (BEC). In this context, we study a model of BEC for indistinguishable cobosons with a controllable parameter, i.e., entanglement between the two constituent particles. We find that bi-fermions behave in a predictable way, i.e., the effective number of the ground state coboson is an increasing function of entanglement between a pair of constituent fermions. Interestingly, bi-bosons exhibit the opposite behavior—the effective number of the ground state coboson is a decreasing function of entanglement between a pair of constituent bosons. |
| first_indexed | 2024-03-12T16:42:10Z |
| format | Article |
| id | doaj.art-15ccdab696044fbeb1f9f883be39908f |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:42:10Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-15ccdab696044fbeb1f9f883be39908f2023-08-08T14:23:56ZengIOP PublishingNew Journal of Physics1367-26302015-01-01171111301510.1088/1367-2630/17/11/113015Quantum information approach to Bose–Einstein condensation of composite bosonsSu-Yong Lee0Jayne Thompson1Sadegh Raeisi2Paweł Kurzyński3Dagomir Kaszlikowski4Centre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543 Singapore, SingaporeCentre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543 Singapore, SingaporeCentre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543 Singapore, Singapore; Institute for Quantum Computing, University of Waterloo , Ontario N2L 3G1, CanadaCentre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543 Singapore, Singapore; Faculty of Physics, Adam Mickiewicz University , Umultowska 85, 61-614 Poznań, PolandCentre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, 117543 Singapore, Singapore; Department of Physics, National University of Singapore , 2 Science Drive 3, 117542 Singapore, SingaporeWe consider composite bosons (cobosons) comprised two elementary particles, fermions or bosons, in an entangled state. First, we show that the effective number of cobosons implies the level of correlation between the two constituent particles. For the maximum level of correlation, the effective number of cobosons is the same as the total number of cobosons, which can exhibit the original Bose–Einstein condensation (BEC). In this context, we study a model of BEC for indistinguishable cobosons with a controllable parameter, i.e., entanglement between the two constituent particles. We find that bi-fermions behave in a predictable way, i.e., the effective number of the ground state coboson is an increasing function of entanglement between a pair of constituent fermions. Interestingly, bi-bosons exhibit the opposite behavior—the effective number of the ground state coboson is a decreasing function of entanglement between a pair of constituent bosons.https://doi.org/10.1088/1367-2630/17/11/113015Bose–Einstein condensationcomposite bosonentanglement |
| spellingShingle | Su-Yong Lee Jayne Thompson Sadegh Raeisi Paweł Kurzyński Dagomir Kaszlikowski Quantum information approach to Bose–Einstein condensation of composite bosons New Journal of Physics Bose–Einstein condensation composite boson entanglement |
| title | Quantum information approach to Bose–Einstein condensation of composite bosons |
| title_full | Quantum information approach to Bose–Einstein condensation of composite bosons |
| title_fullStr | Quantum information approach to Bose–Einstein condensation of composite bosons |
| title_full_unstemmed | Quantum information approach to Bose–Einstein condensation of composite bosons |
| title_short | Quantum information approach to Bose–Einstein condensation of composite bosons |
| title_sort | quantum information approach to bose einstein condensation of composite bosons |
| topic | Bose–Einstein condensation composite boson entanglement |
| url | https://doi.org/10.1088/1367-2630/17/11/113015 |
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