Long-time Bell states of waveguide-mediated qubits via continuous measurement

Abstract

The generation of Bell states of distant objects is of importance for constructing quantum networks. Previous studies have revealed that transient or intermittent Bell states can be generated between remote qubits by exploiting time-continuous measurement on the environments of the systems, e.g., photon counting or homodyne detection. In this paper, we consider a new scheme for achieving long-time sustainable Bell states of two distant qubits mediated by a one-dimension waveguide via continuous photon counting and homodyne detection. In both of cases, different Bell states can be present for different initial states in the long-time regime. Specially, in the former case, we find that a cyclic jump among Bell states can be formed once the first photon is registered, and more interestingly in the latter case, any steady Bell state can be achieved independent of detection efficiency.

arXiv comment8 pages, 7 figures

References in corpus (41)

• Entanglement of Formation of an Arbitrary State of Two Qubits
• The Quantum Internet
• QuTiP 2: A Python framework for the dynamics of open quantum systems
• Quantum state transfer and entanglement distribution among distant nodes in a quantum network
• QuTiP: An open-source Python framework for the dynamics of open quantum systems
• Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms
• Entanglement of two qubits mediated by one-dimensional plasmonic waveguides
• Atom-Light Interactions in Photonic Crystals
• Entangled states and collective nonclassical effects in two-atom systems
• Quantum Optics of Chiral Spin Networks
• Quantum Routing of Single Photons with Cyclic Three-Level System
• Observation of measurement-induced entanglement and quantum trajectories of remote superconducting qubits
• Persistent Quantum Beats and Long-Distance Entanglement from Waveguide-Mediated Interactions
• Quantum feedback: theory, experiments, and applications
• Photon scattering by a three-level emitter in a one-dimensional waveguide
• Waveguide QED: Many-Body Bound State Effects on Coherent and Fock State Scattering from a Two-Level System
• Steady Bell state generation via magnon-photon coupling
• Few-photon transport in low-dimensional systems: Interaction-induced radiation trapping
• Two-photon scattering by a driven three-level emitter in a one-dimensional waveguide and electromagnetically induced transparency
• Dissipation-driven generation of two-qubit entanglement mediated by plasmonic waveguides
• Entangled Bell and GHZ states of excitons in coupled quantum dots
• Waveguide-QED-Based Photonic Quantum Computation
• Self-organization of atoms along a nanophotonic waveguide
• Trapped Atoms in One-Dimensional Photonic Crystals
• Stabilizing a Bell state of two superconducting qubits by dissipation engineering
• A chiral route to spontaneous entanglement generation
• Generation, manipulation, and detection of two-qubit entanglement in waveguide QED
• Long-Range Interaction of Spin-Qubits via Ferromagnets
• Entanglement of solid-state qubits by measurement
• Generation and detection of a sub-Poissonian atom number distribution in a one-dimensional optical lattice
• Few photon transport in a waveguide coupled to a pair of collocated two-level atoms
• Stimulated Emission from a single excited atom in a waveguide
• Heralded Bell State of Dissipative Qubits Using Classical Light in a Waveguide
• Quantum trajectories and their statistics for remotely entangled quantum bits
• Entanglement dynamics in open two-qubit systems via diffusive quantum trajectories
• Continuous joint measurement and entanglement of qubits in remote cavities
• Measurement-Induced Long-Distance Entanglement of Superconducting Qubits using Optomechanical Transducers
• Generation of decoherence-free displaced squeezed states of radiation fields and a squeezed reservoir for atoms in cavity QED
• Average Entanglement for Markovian Quantum Trajectories
• Entanglement-Preserving Limit Cycles from Sequential Quantum Measurements and Feedback
• Heralded generation of Bell states using atomic ensembles

Cited by in corpus (3)

• Generation of long-lived $W$ states via reservoir engineering in dissipatively coupled systems
• Generating Bell states and $N$-partite $W$ states of long-distance qubits in superconducting waveguide QED
• Quantum coherent and measurement feedback control based on atoms coupled with a semi-infinite waveguide