Record deep-strong coupling (normalized ratio >1.6) realized in 3D Kane fermion Landau polaritons, with gauge-invariant theory showing emergent A² term that precludes superradiant quantum phase transition.
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An exactly solvable model of a quantum chain coupled to a cavity photon via dipole interaction yields a closed-form reduced density matrix that reveals logarithmic light-matter and spatial entanglement scaling with system size at strong coupling, arising from photon resolution of collective dipole P
Excitons coupled to cavity photons and phonons obey a generalized Bloch theorem based on conserved total crystal momentum that block-diagonalizes the Hamiltonian without approximations.
citing papers explorer
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Deep Strong light-matter Coupling in 3D Kane Fermions
Record deep-strong coupling (normalized ratio >1.6) realized in 3D Kane fermion Landau polaritons, with gauge-invariant theory showing emergent A² term that precludes superradiant quantum phase transition.
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Logarithmic Entanglement and Emergent Dipole Symmetry from a Strongly Coupled Light-Matter Quantum Circuit
An exactly solvable model of a quantum chain coupled to a cavity photon via dipole interaction yields a closed-form reduced density matrix that reveals logarithmic light-matter and spatial entanglement scaling with system size at strong coupling, arising from photon resolution of collective dipole P
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Generalized Bloch's Theorem for Cavity Exciton Polaron-Polaritons
Excitons coupled to cavity photons and phonons obey a generalized Bloch theorem based on conserved total crystal momentum that block-diagonalizes the Hamiltonian without approximations.