Efficient polarization entanglement concentration for electrons with charge detection
arXiv:0811.0050 · doi:10.1016/j.physleta.2009.03.051
Abstract
We present an entanglement concentration protocol for electrons based on their spins and their charges. The combination of an electronic polarizing beam splitter and a charge detector functions as a parity check device for two electrons, with which the parties can reconstruct maximally entangled electron pairs from those in a less-entanglement state nonlocally. This protocol has a higher efficiency than those based on linear optics and it does not require the parties to know accurately the information about the less-entanglement state, which makes it more convenient in a practical application of solid quantum computation and communication.
4 pages, 2 figures
References in corpus (12)
- Quantum Cryptography
- Feasible Entanglement Purification for Quantum Communication
- Efficient polarization entanglement purification based on parametric down-conversion sources with cross-Kerr nonlinearity
- Classical simulation of noninteracting-fermion quantum circuits
- Polarization Entanglement Purification using Spatial Entanglement
- Nonlocal entanglement concentration scheme for partially entangled multipartite systems with nonlinear optics
- A Practical Scheme for Entanglement Concentration
- A Concentration/Purification Scheme for Two Partially Entangled Photon Pairs
- Charge detection enables free-electron quantum computation
- Parity meter for charge qubits: an efficient quantum entangler
- Entangling spins by measuring charge: a parity-gate toolbox
- Cluster-state preparation and multipartite entanglement analyzer with fermions
Cited by in corpus (9)
- Efficient single-photon-assisted entanglement concentration for partially entangled photon pairs
- Efficient two-step entanglement concentration for arbitrary W states
- Efficient W state entanglement concentration using quantum-dot and optical microcavities
- Multipartite electronic entanglement purification with charge detection
- High-efficiency multipartite entanglement purification of electron-spin states with charge detection
- Efficient electronic entanglement concentration assisted with single mobile electron
- Optimal multipartite entanglement concentration of electron-spin states based on charge detection and projection measurements
- Efficient multipartite entanglement concentration of electron-spin state with charge detection
- Efficient entanglement concentration for arbitrary less-entangled NOON state assisted with single photon