Generation and entanglement concentration for electron-spin entangled cluster states using charged quantum dots in optical microcavities

  title={Generation and entanglement concentration for electron-spin entangled cluster states using charged quantum dots in optical microcavities},
  author={Jie Zhao and Chunhong Zheng and Chunhong Zheng and Peng Shi and Chun-Nian Ren and Yongjian Gu},
  journal={Optics Communications},
12 Citations

Figures from this paper

Refined entanglement concentration for electron-spin entangled cluster states with quantum-dot spins in optical microcavities
All the coefficients of the refined entanglement concentration protocol are unknown for the parties without assistance of extra single electron-spin, so the ECP maybe has good applications in quantum communication network in the future.
Systematic entanglement concentration for unknown less-entangled three-photon W states
We present a systematic entanglement concentration protocol (ECP) for an arbitrary unknown less-entangled three-photon W state, resorting to the optical property of the quantum-dot spins inside
Cluster state entanglement generation and concentration on nitrogen-vacancy centers in decoherence-free subspace
Exploiting the composite system in which two nitrogen-vacancy centers coupled to a microtoroid resonator, we proposed the cluster state entanglement generation and concentration schemes on
Electronic Entanglement Concentration for the Concatenated Greenberger-Horne-Zeilinger State
An entanglement concentration protocol (ECP) for electronic C-GHZ state, by exploiting the electronic polarization beam splitters (PBSs) and charge detection and it is hoped that this protocol can be useful in future quantum computation based on electrons.
Efficient N-particle W state concentration with different parity check gates
A universal way to concentrate an arbitrary N-particle less-entangled W state into a maximally entangled W state with different parity check gates, which is quite useful in current quantum communication and computation applications.
Efficient entanglement concentration for arbitrary less-entangled NOON state assisted with single photon
We put forward two efficient entanglement concentration protocols (ECPs) for distilling the maximally entangled NOON state from arbitrary less-entangled NOON state with only an auxiliary single
Entanglement concentration for concatenated Greenberger-Horne-Zeiglinger state with feasible linear optics
The concatenated Greenberger-Horne-Zeiglinger (C-GHZ) state which is a new type of logic-qubit entanglement has attracted a lot of attentions recently. We present a feasible entanglement
Hybrid entanglement concentration assisted with single coherent state
This paper proposes three entanglement concentration protocols (ECPs) for Bell-type HES, W-typeHES, and cluster-type ECPs, which can obtain the maximally entangled HES with some success probability.
Implementing of Quantum Cloning with Spatially Separated Quantum Dot Spins
We propose some schemes for implementing optimal symmetric (asymmetric) 1 → 2 universal quantum cloning, optimal symmetric (asymmetric) 1 → 2 phase-covariant cloning, optimal symmetric 1 → 3
Entanglement concentration for concatenated Greenberger–Horne–Zeilinger state
The concatenated Greenberger–Horne–Zeilinger state is a new type of logic-qubit entanglement, which attracts a lot of attentions recently, and two groups of ECPs are presented, which may be useful in future long-distant quantum communication.


Entanglement purification and concentration of electron-spin entangled states using quantum-dot spins in optical microcavities
We present an entanglement purification protocol and an entanglement concentration protocol for electron-spin entangled states, resorting to quantum-dot spin and optical-microcavity-coupled systems.
Multipartite entanglement concentration of electron-spin states with CNOT gates
We propose a different entanglement concentration protocol (ECP) for nonlocal N-electron systems in a partially entangled Bell-type pure state using the CNOT gates and the projection measurements on
Universal quantum gates for hybrid systems assisted by quantum dots inside double-sided optical microcavities
We present some deterministic schemes to construct universal quantum gates, that is, controlled- NOT, three-qubit Toffoli, and Fredkin gates, between flying photon qubits and stationary electron-spin
Proposed entanglement beam splitter using a quantum-dot spin in a double-sided optical microcavity
Received 7 August 2009; revised manuscript received 1 October 2009; published 30 November 2009We propose an entanglement beam splitter EBS using a quantum-dot spin in a double-sided
Loss-resistant state teleportation and entanglement swapping using a quantum-dot spin in an optical microcavity
We present a scheme for efficient state teleportation and entanglement swapping using a single quantum-dot spin in an optical microcavity based on giant circular birefringence. State teleportation or
Deterministic photon entangler using a charged quantum dot inside a microcavity
We present two novel schemes to generate photon polarization entanglement via single electron spins confined in charged quantum dots inside microcavities. One scheme is via entangled remote electron
Optical pumping of a single hole spin in a quantum dot
High fidelity initialization of a single hole spin confined to a self-assembled quantum dot by optical pumping is demonstrated, demonstrating a negligible hole spin hyperfine interaction and suggesting a route to the realization of solid-state quantum networks that can intra-convert the spin state with the polarization of a photon.
Efficient entanglement concentration for quantum dot and optical microcavities systems
This paper presents an efficient ECP for partially entangled electrons with the help of only one single photon, which may be useful in current long-distance quantum communications.
Protocol and quantum circuits for realizing deterministic entanglement concentration
Entanglement concentration can be achieved in a deterministic fashion [Morikoshi, Phys. Rev. Lett. 84, 3189 (2000); Phys. Rev. A 64, 022316 (2001)]. We present a protocol for deterministic extraction
Scalable photonic quantum computing assisted by quantum-dot spin in double-sided optical microcavity.
A deterministic controlled-not gate on two photonic qubits is constructed by two single-photon input-output processes and the readout on an electron-medium spin confined in an optical resonant microcavity as a result of cavity quantum electrodynamics.