2015/11/30 by Daniel Z. Rossatto, D. Z. Rossatto, S. Felicetti +7 · 5 citations
Computer Science · Physics and Astronomy · #Casimir effect #Circuit quantum electrodynamics #Coupling (piping) #Mechanical and Optical Resonators #Optoelectronics #Physics #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum Information and Cryptography #Quantum electrodynamics #Quantum entanglement #Quantum mechanics #Qubit #Resonator #cond-mat.mes-hall #cond-mat.supr-con #quant-ph
paper · pdf · doi:10.1103/physrevb.93.094514
published as Phys. Rev. B 93, 094514 (2016) · Updated version
openalex publication_date 2016/03/14 · arxiv created 2016/03/16 · arxiv updated 2016/06/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate theoretically 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, considering experimental parameters of 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 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 experimentally feasible theoretical protocols to generate maximally entangled polaritonic states.