Entangling polaritons via dynamical Casimir effect in circuit quantum electrodynamics

Abstract

We investigate how the dynamical Casimir effect can entangle quantum systems in different coupling regimes of circuit quantum electrodynamics, and show the robustness of such entanglement generation against dissipative effects with current technology. We consider two qubit-resonator systems, which are coupled by a SQUID driven with an external magnetic field, and explore the entire range of coupling regimes between each qubit and its respective resonator. In this scheme, we derive a semianalytic explanation for the entanglement generation between both superconducting qubits when they are coupled to their resonators in the strong coupling regime. For the ultrastrong and deep strong coupling regimes, we design feasible protocols to generate maximally-entangled polaritonic states.

Updated version

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• Interaction of Mechanical Oscillators Mediated by the Exchange of Virtual Photon Pairs
• Digital-analog quantum algorithm for the quantum Fourier transform
• Quantum Rabi dynamics of trapped atoms far in the deep strong coupling regime
• Quantum Rabi model in the Brillouin zone with ultracold atoms
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• Quantum simulation of ultrastrongly coupled bosonic modes using superconducting circuits
• Simulating Anisotropic quantum Rabi model via frequency modulation
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• Analytical comparison of the first- and second-order resonances for implementation of the dynamical Casimir effect in nonstationary circuit QED
• Parametrically driven hybrid qubits-photon systems: dissipation-induced quantum entanglement and photon production from vacuum
• Dynamical Casimir effect via modulated Kerr or higher nonlinearities
• 1- and 3-photon dynamical Casimir effects using nonstationary cyclic qutrit
• Engineering Photon Delocalization in a Rabi Dimer with a Dissipative Bath
• Speeding up antidynamical Casimir effect with nonstationary qutrits
• Damped Casimir radiation and photon correlation measurements
• Generation of higher dimensional entangled states in quantum Rabi systems
• Multi-qubit Quantum Rabi Model and Multi-partite Entangled States in a Circuit QED System
• Generation of photons from vacuum in cavity via time-modulation of a qubit invisible to the field
• Realizing a mechanical dynamical Casimir effect with a low-frequency oscillator
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• Two-photon exchange interaction from Dicke Hamiltonian under parametric modulation