Decay of nonlocality due to adiabatic and quantum noise in the solid state

Abstract

We study the decay of quantum nonlocality, identified by the violation of the Clauser-Horne-Shimony-Holt (CHSH) Bell inequality, for two noninteracting Josephson qubits subject to independent baths with broadband spectra typical of solid state nanodevices. The bath noise can be separated in an adiabatic (low-frequency) and in a quantum (high-frequency) part. We point out the qualitative different effects on quantum nonlocal correlations induced by adiabatic and quantum noise. A quantitaive analysis is performed for typical noise figures in Josephson systems. Finally we compare, for this system, the dynamics of nonlocal correlations and of entanglement.

arXiv comment9 pages, 3 figures

References in corpus (28)

• Quantum entanglement
• Entanglement of Formation of an Arbitrary State of Two Qubits
• Introducing Quantum Discord
• Manipulating the Quantum State of an Electrical Circuit
• Coupling Superconducting Qubits via a Cavity Bus
• Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
• Non-Markovian effects on the dynamics of entanglement
• From Bell's Theorem to Secure Quantum Key Distribution
• Decoherence in a superconducting quantum bit circuit
• Suppressing Charge Noise Decoherence in Superconducting Charge Qubits
• Decoherence and 1/f noise in Josephson qubits
• Quantum noise in the Josephson charge qubit
• Entanglement dynamics of two independent qubits in environments with and without memory
• Randomized benchmarking and process tomography for gate errors in a solid-state qubit
• Using Sideband Transitions for Two-Qubit Operations in Superconducting Circuits
• Two-photon probe of the Jaynes-Cummings model and symmetry breaking in circuit QED
• Low-frequency noise as a source of dephasing of a qubit
• Two-Qubit State Tomography using a Joint Dispersive Read-Out
• Non-Gaussian low-frequency noise as a source of qubit decoherence
• Low- and high-frequency noise from coherent two-level systems
• Initial decoherence in solid state qubits
• High-fidelity gates in a Josephson qubit
• Violation of Bell inequality and entanglement of decaying Werner states
• Connection among entanglement, mixedness and nonlocality in a dynamical context
• Entanglement degradation in the solid state: interplay of adiabatic and quantum noise
• Universality in the entanglement structure of ferromagnets
• Strong tunable coupling between a superconducting charge and phase qubit
• Dynamics of Non Classically Reproducible Entanglement

Cited by in corpus (4)

• Dynamics of quantum correlations in two-qubit systems within non-Markovian environments
• Entanglement estimation from Bell inequality violation
• Overview on the phenomenon of two-qubit entanglement revivals in classical environments
• Bell violation versus geometric measure of quantum discord and their dynamical behavior