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Free keywords:
Paramagnetism, Phase transitions, Photons, Stereochemistry, Chiral cavity, Electromagnetic vector potentials, Photon condensation, Quantum-phase transition, Simple++, Uniform magnetic fields, Van Vleck paramagnetism, Molecules
Abstract:
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. © 2024 authors. Published by the American Physical Society.
