Quantum entanglement for two qubits in a nonstationary cavity

Abstract

The quantum entanglement and the probability of the dynamical Lamb effect for two qubits caused by non-adiabatic fast change of the boundary conditions are studied. The conditional concurrence of the qubits for each fixed number of created photons in a nonstationary cavity is obtained as a measure of the dynamical quantum entanglement due to the dynamical Lamb effect. We discuss the physical realization of the dynamical Lamb effect, based on superconducting qubits.

arXiv comment7 pages

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Cited by in corpus (8)

• Parametrically driven hybrid qubits-photon systems: dissipation-induced quantum entanglement and photon production from vacuum
• Superconducting qubit in a nonstationary transmission line cavity: parametric excitation, periodic pumping, and energy dissipation
• Time evolution of the quantum entanglement between $N$ qubits due to dynamical Lamb effect in the presence of dissipation
• Tunable quantum entanglement of three qubits in a non-stationary cavity
• Laplace transform approach for the dynamics of N qubits coupled to a resonator
• Quantum entanglement between excitons in two-dimensional materials
• Can the dynamical Lamb effect be observed in a superconducting circuit?
• Two-photon exchange interaction from Dicke Hamiltonian under parametric modulation