Dissipative entanglement generation between two driven qubits in circuit quantum electrodynamics

• URL: http://arxiv.org/abs/2111.08827v1
• Date: Tue, 16 Nov 2021 23:05:22 GMT
• Title: Dissipative entanglement generation between two driven qubits in circuit quantum electrodynamics
• Authors: Sebasti\'an Luciano Gallardo, Daniel Dominguez, Mar\'ia Jos\'e S\'anchez
• Abstract summary: We explain the mechanism of entanglement generation in terms of an interplay between unitary Landau-Zener-Stuckelberg transitions. In this way, we found that the steady state of the system can be tuned to be arbitrarily close to a Bell state.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: An entangled state generation protocol for a system of two qubits driven with an ac signal and coupled through a resonator is introduced. We explain the mechanism of entanglement generation in terms of an interplay between unitary Landau-Zener-Stuckelberg (LZS) transitions induced for appropriate amplitudes and frequencies of the applied ac signal and dissipative processes dominated by photon loss. In this way, we found that the steady state of the system can be tuned to be arbitrarily close to a Bell state, which is independent of the initial state. Effective two-qubit Hamiltonians that reproduce the resonance patterns associated with LZS transitions are derived.

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