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https://doi.org/10.1088/1367-2630/17/11/113015
Title: | Quantum information approach to Bose-Einstein condensation of composite bosons | Authors: | Lee, S.-Y Thompson, J Raeisi, S Kurzy?ski, P Kaszlikowski, D |
Keywords: | Bosons Ground state Quantum entanglement Quantum optics Statistical mechanics Composite bosons Controllable parameters Decreasing functions Entangled state entanglement Increasing functions Maximum levels Quantum Information Bose-Einstein condensation |
Issue Date: | 2015 | Publisher: | Institute of Physics Publishing | Citation: | Lee, S.-Y, Thompson, J, Raeisi, S, Kurzy?ski, P, Kaszlikowski, D (2015). Quantum information approach to Bose-Einstein condensation of composite bosons. New Journal of Physics 17 (11) : 113015. ScholarBank@NUS Repository. https://doi.org/10.1088/1367-2630/17/11/113015 | Abstract: | 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. © 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. | Source Title: | New Journal of Physics | URI: | https://scholarbank.nus.edu.sg/handle/10635/175277 | ISSN: | 1367-2630 | DOI: | 10.1088/1367-2630/17/11/113015 |
Appears in Collections: | Staff Publications Elements |
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