Supersolidity of polariton condensates in photonic crystal waveguides
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866912509676486656 |
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| author | Nigro, Davide Trypogeorgos, Dimitrios Gianfrate, Antonio Sanvitto, Daniele Carusotto, Iacopo Gerace, Dario |
| author_facet | Nigro, Davide Trypogeorgos, Dimitrios Gianfrate, Antonio Sanvitto, Daniele Carusotto, Iacopo Gerace, Dario |
| contents | Condensation of exciton-polaritons has been recently observed in one-dimensional photonic crystal waveguides, exploiting the interplay of long-lived gap confined eigenmodes and negative mass polariton branches. Here we focus on the theoretical emergence of a second emission threshold, in addition to the one associated with condensation at zero-momentum, due to the nonlinear polariton scattering from the condensate into finite momentum eigenmodes. The physics of this spatially modulated condensate is related to a spontaneous breaking of both phase and translational symmetries simultaneously, bearing strong similarities with the highly sought supersolid phase in Helium and ultracold atomic gases but with a novel mechanism typical of the driven-dissipative scenario. We then propose clear-cut and unequivocal experimental signatures that would allow to identify supersolidity phenomena in polariton condensates |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2407_06671 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Supersolidity of polariton condensates in photonic crystal waveguides Nigro, Davide Trypogeorgos, Dimitrios Gianfrate, Antonio Sanvitto, Daniele Carusotto, Iacopo Gerace, Dario Quantum Gases Condensation of exciton-polaritons has been recently observed in one-dimensional photonic crystal waveguides, exploiting the interplay of long-lived gap confined eigenmodes and negative mass polariton branches. Here we focus on the theoretical emergence of a second emission threshold, in addition to the one associated with condensation at zero-momentum, due to the nonlinear polariton scattering from the condensate into finite momentum eigenmodes. The physics of this spatially modulated condensate is related to a spontaneous breaking of both phase and translational symmetries simultaneously, bearing strong similarities with the highly sought supersolid phase in Helium and ultracold atomic gases but with a novel mechanism typical of the driven-dissipative scenario. We then propose clear-cut and unequivocal experimental signatures that would allow to identify supersolidity phenomena in polariton condensates |
| title | Supersolidity of polariton condensates in photonic crystal waveguides |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2407.06671 |