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4 papers · 2 filters
Floquet engineering the quantum Rabi model in the ultrastrong coupling regime
Kamran Akbari, Franco Nori, Stephen Hughes
We study the quantum Rabi model for a two-level system coupled to a quantized cavity mode under periodic modulation of the cavity-dipole coupling in the ultrastrong coupling regime…
Information flow-enhanced precision in collisional quantum thermometry
Taysa M. Mendonça, Diogo O. Soares-Pinto, Mauro Paternostro
We describe and analyze a quantum thermometer based on a multilayered collisional model. We propose a qubit system whose architecture provides significant sensitivity even for shor…
What is the spectral density of the reservoir for a lossy quantized cavity?
Chris Gustin, Juanjuan Ren, Stephen Hughes
By considering a two-level system weakly coupled to a single lossy three-dimensional cavity mode, and using a quasinormal mode expansion for the photonic medium, we show that the f…
Quantum Phase Transitions in Many-Dipole Light-Matter Systems
Daniele Lamberto, Omar Di Stefano, Stephen Hughes +2
A potential phase transition between a normal ground state and a photon-condensed ground state in many-dipole light-matter systems is a topic of considerable controversy, exasperat…