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.

7 pages

References in corpus (4)

• Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
• Black-box superconducting circuit quantization
• Current status of the Dynamical Casimir Effect
• Dynamical Lamb Effect in a Tunable Superconducting Qubit-Cavity System

Cited by in corpus (2)

• 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