Entanglement between two superconducting qubits via interaction with non-classical radiation

Abstract

We propose a scheme to physically interface superconducting nano-circuits and quantum optics. We address the transfer of quantum information between systems having different physical natures and defined in Hilbert spaces of different dimensions. In particular, we investigate the transfer of the entanglement initially in a non-classical state of a continuous-variable system to a pair of superconducting charge qubits. This set-up is able to drive an initially separable state of the qubits into an almost pure, highly entangled state suitable for quantum information processing.

4 pages, RevTeX; revised version

References in corpus (15)

• Entanglement of Formation of an Arbitrary State of Two Qubits
• Mixed State Entanglement and Quantum Error Correction
• Separability Criterion for Density Matrices
• Separability of Mixed States: Necessary and Sufficient Conditions
• Quantum state engineering with Josephson-junction devices
• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Manipulating the Quantum State of an Electrical Circuit
• Quantum oscillations in two coupled charge qubits
• Decoherence and 1/f noise in Josephson qubits
• Tunable coupling of superconducting qubits
• Mixedness and teleportation
• Communicating Josephson Qubits
• Entanglement transfer from continuous variables to qubits
• Macroscopic entanglement in Josephson nanocircuits
• Asymmetric quantum channel for quantum teleportation

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• Entanglement reciprocation between qubits and continuous variables
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• Integrable spin-boson models descending from rational six-vertex models
• Enhanced dynamical entanglement transfer with multiple qubits
• Entanglement, purity and energy: Two qubits vs Two modes
• Improving the entanglement transfer from continuous variable systems to localized qubits using non Gaussian states
• Level statistics of a pseudo-Hermitian Dicke model
• Concentration and purification of entanglement for qubit systems with ancillary cavity fields
• Tripartite entanglement transfer from flying modes to localized qubits
• Entanglement generation and protection by detuning modulation
• Superconducting Quantum Circuits, Qubits and Computing
• Vortex entanglement in Bose-Einstein condensates coupled to Laguerre-Gauss beams
• Quantum Phase Transition in a Pseudo-hermitian Dicke model
• Integrable spin-boson interaction in the Tavis-Cummings model from a generic boundary twist
• Nanomechanical Quantum Memory for Superconducting Qubits
• Accumulation of entanglement in a continuous variable memory
• A dissipative scheme to approach the boundary of two-qubit entangled mixed states
• Passing quantum correlations to qubits using any two-mode state
• Qubit state guidance without feedback
• Transfer of entanglement from electrons to photons by optical selection rules
• Entanglement of mixed macroscopic superpositions: an entangling-power study
• Modelling of quantum information processing with Ehrenfest guided tra jectories: a case study
• Entanglement of distant flux qubits mediated by non-classical electromagnetic field
• Transferring entanglement to the steady-state of flying qubits
• Relative entropy of entanglement of a kind of two qubit entangled states
• Entanglement of topological phase factors
• Entangled quantum currents in distant mesoscopic Josephson junctions
• Entangled microwaves as a resource for entangling spatially separate solid-state qubits: superconducting qubits, NV centers and magnetic molecules
• Dynamics of Bloch vectors and the channel capacity of a non identical charged qubit pair
• Cross-entangling electronic and nuclear spins of distant nitrogen-vacancy centers in noisy environments by means of quantum microwave radiation
• Electron interference in mesoscopic devices in the presence of nonclassical electromagnetic fields
• Quantum state conversion between continuous variable and qubits systems
• Entanglement transfer, accumulation and retrieval via quantum-walk-based qubit-qudit dynamics