Quantum theory of polariton weak lasing and polarization bifurcations
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866911985009950720 |
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| author | Xu, Huawen Liew, Timothy C. H. Rubo, Yuri G. |
| author_facet | Xu, Huawen Liew, Timothy C. H. Rubo, Yuri G. |
| contents | The quantum theory of polariton condensation in a trapped state reveals a second-order phase transition evidenced by spontaneous polarization parity breaking in sub-spaces of fixed polariton occupation numbers. The emission spectra of a polariton condensate demonstrate the coexistence of a symmetry-conserving condensate state with {linear} polarization and two symmetry-broken elliptically polarized states in the vicinity of the threshold. As a result, an oscillating linearly polarized second-order coherence $g^{(2)}_{xx}(t)$, with $g^{(2)}_{xx}(t)<1$ over some time intervals is obtained. Spontaneous symmetry breaking is reflected in the second-order cross correlator of circular polarizations. A related build-up of elliptically-polarized weak lasing also results in non-monotonous dependence of the circular second-order coherence on excitation power and interaction strength. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_16166 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Quantum theory of polariton weak lasing and polarization bifurcations Xu, Huawen Liew, Timothy C. H. Rubo, Yuri G. Mesoscale and Nanoscale Physics The quantum theory of polariton condensation in a trapped state reveals a second-order phase transition evidenced by spontaneous polarization parity breaking in sub-spaces of fixed polariton occupation numbers. The emission spectra of a polariton condensate demonstrate the coexistence of a symmetry-conserving condensate state with {linear} polarization and two symmetry-broken elliptically polarized states in the vicinity of the threshold. As a result, an oscillating linearly polarized second-order coherence $g^{(2)}_{xx}(t)$, with $g^{(2)}_{xx}(t)<1$ over some time intervals is obtained. Spontaneous symmetry breaking is reflected in the second-order cross correlator of circular polarizations. A related build-up of elliptically-polarized weak lasing also results in non-monotonous dependence of the circular second-order coherence on excitation power and interaction strength. |
| title | Quantum theory of polariton weak lasing and polarization bifurcations |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2310.16166 |