Schemes for quantum entanglement concentration of two unknown partially entangled states with cross-Kerr nonlinearity
arXiv:1403.5041 · doi:10.1364/JOSAB.28.002030
Abstract
We propose practical schemes for concentrating entanglement of a pair of unknown partially entangled Bell states and three-photon W states with cross-Kerr nonlinearity. In the schemes, utilizing local operations and classical communication, two separated parties can obtain one maximally entangled photon pair from two previously shared partially entangled photon pairs, and three separated parties can obtain one maximally entangled three-photon W state and a maximally entangled cluster state from two identical partially entangled three-photon W state with a certain success probability. Finally, we discuss the influences of sources of errors and decoherence on the schemes. The proposed setup is very simple, just employing some linear optical elements and cross-Kerr medium, which greatly simplifies the experimental realization of the schemes. The schemes are feasible within current experimental technology
arXiv comment8 pages, 4 figures
References in corpus (35)
- Experimental quantum teleportation
- Mixed State Entanglement and Quantum Error Correction
- Quantum Mechanics helps in searching for a needle in a haystack
- Concentrating Partial Entanglement by Local Operations
- Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
- Quantum privacy amplification and the security of quantum cryptography over noisy channels
- Observation of three-photon Greenberger-Horne-Zeilinger entanglement
- Quantum Cryptography with Entangled Photons
- Feasible Entanglement Purification for Quantum Communication
- A near deterministic linear optical CNOT gate
- Stationary pulses of light in an atomic medium
- Quantum Cryptography using entangled photons in energy-time Bell states
- Entangled state quantum cryptography: Eavesdropping on the Ekert protocol
- Purification via entanglement swapping and conserved entanglement
- Quantum Nonlocality in Phase Space
- Weak nonlinearities: A new route to optical quantum computation
- A symmetry analyser for non-destructive Bell state detection using EIT
- Nonlocal entanglement concentration scheme for partially entangled multipartite systems with nonlinear optics
- A Concentration/Purification Scheme for Two Partially Entangled Photon Pairs
- A Practical Scheme for Entanglement Concentration
- Multi-Particle Entanglement Purification Protocols
- Experimental Realization of Entanglement Concentration and A Quantum Repeater
- Quantum Computation by Communication
- Entanglement purification of Gaussian continuous variable quantum states
- Entanglement quantification and purification in continuous variable systems
- Generation of entangled coherent states via cross phase modulation in a double electromagnetically induced transparency regime
- Continuous-time cross-phase modulation and quantum computation
- Scheme for the generation of an entangled four-photon W-state
- Quantum computation using weak nonlinearities: robustness against decoherence
- Entanglement concentration for unknown atomic entangled states via entanglement swapping
- Quantum information processing via a lossy bus
- Concentration for unknown atomic entangled states via cavity decay
- Recovery of entanglement lost in entanglement manipulation
- Quantum Nonlocality of N-qubit W states
- Schemes for generating W state of paths and W state of polarization photons
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- Demonstration of Entanglement Purification and Swapping Protocol to Design Quantum Repeater in IBM Quantum Computer
- Efficient W state entanglement concentration using quantum-dot and optical microcavities
- Efficient entanglement concentration for arbitrary less-entangled N-atom state
- Single-photon-assisted entanglement concentration of a multi-photon system in a partially entangled W state with weak cross-Kerr nonlinearity
- Extracting perfect GHZ states from imperfect weighted graph states via entanglement concentration
- Universal, unambiguous concentration and distillation of Bell pairs
- Localizing multipartite entanglement with local and global measurements
- Efficient entanglement concentration for arbitrary less-entangled NOON state assisted with single photon