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Quantum information is the study of the informational content of quantum states. The most common object of study is the "qubit", the information in a two-state quantum system such as spin-1/2 or photon polarization.

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Solving Buck-Sukumar model for nonlinear cavity

I considered light-atom interaction in nonlinear cavity case. This situation is described by Buck-Sukumar model: $$ H = {\omega}_0 \sigma_z + {\omega}(a^\dagger a) + g \left(\sqrt{(a^\dagger a)}a^\dag …
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