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Updated: Jul 8, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Unique Steady-State Squeezing in a Driven Quantum Rabi Model
Karol Gietka1, Christoph Hotter1, Helmut Ritsch1
1Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria.
Abstract:
Squeezing is essential to many quantum technologies and our understanding of quantum physics. Here, we show a novel type of steady-state squeezing that can be generated in the closed and open quantum Rabi as well as Dicke model. To this end, we eliminate the spin dynamics which effectively leads to an abstract harmonic oscillator whose eigenstates are squeezed with respect to the noninteracting harmonic oscillator. By driving the system, we generate squeezing which has the unique property of time-independent uncertainties and squeezed dynamics. Such squeezing might find applications in continuous backaction evading measurements and should already be observable in optomechanical systems and Coulomb crystals.
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