Photon condensation, Van Vleck paramagnetism, and chiral cavities
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909145522765824 |
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| author | Mercurio, Alberto Andolina, Gian Marcello Pellegrino, Francesco M. D. Di Stefano, Omar Jarillo-Herrero, Pablo Felser, Claudia Koppens, Frank H. L. Savasta, Salvatore Polini, Marco |
| author_facet | Mercurio, Alberto Andolina, Gian Marcello Pellegrino, Francesco M. D. Di Stefano, Omar Jarillo-Herrero, Pablo Felser, Claudia Koppens, Frank H. L. Savasta, Salvatore Polini, Marco |
| contents | We introduce a gauge-invariant model of planar, square molecules coupled to a quantized spatially-varying cavity electromagnetic vector potential A(r). Specifically, we choose a temporally chiral cavity hosting a uniform magnetic field B, as this is the simplest instance in which a transverse spatially-varying A(r) is at play. We show that when the molecules are in the Van Vleck paramagnetic regime, an equilibrium quantum phase transition to a photon condensate state occurs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2302_09964 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Photon condensation, Van Vleck paramagnetism, and chiral cavities Mercurio, Alberto Andolina, Gian Marcello Pellegrino, Francesco M. D. Di Stefano, Omar Jarillo-Herrero, Pablo Felser, Claudia Koppens, Frank H. L. Savasta, Salvatore Polini, Marco Mesoscale and Nanoscale Physics Quantum Physics We introduce a gauge-invariant model of planar, square molecules coupled to a quantized spatially-varying cavity electromagnetic vector potential A(r). Specifically, we choose a temporally chiral cavity hosting a uniform magnetic field B, as this is the simplest instance in which a transverse spatially-varying A(r) is at play. We show that when the molecules are in the Van Vleck paramagnetic regime, an equilibrium quantum phase transition to a photon condensate state occurs. |
| title | Photon condensation, Van Vleck paramagnetism, and chiral cavities |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2302.09964 |