Divergent beams of nonlocally entangled electrons emitted from hybrid normal-superconducting structures
arXiv:cond-mat/0510258 · doi:10.1088/1367-2630/7/1/231
Abstract
We propose the use of normal and Andreev resonances in normal-superconducting structures to generate divergent beams of nonlocally entangled electrons. Resonant levels are tuned to selectively transmit electrons with specific values of the perpendicular energy, thus fixing the magnitude of the exit angle. When the normal metal is a ballistic two-dimensional electron gas, the proposed scheme guarantees arbitrarily large spatial separation of the entangled electron beams emitted from a finite interface. We perform a quantitative study of the linear and nonlinear transport properties of some suitable structures, taking into account the large mismatch in effective masses and Fermi wavelengths. Numerical estimates confirm the feasibility of the proposed beam separation method.
arXiv comment11 pages, 8 figures. Corrected typos. Published version
References in corpus (37)
- Non-ballistic spin field-effect transistor
- Andreev-Tunneling, Coulomb Blockade, and Resonant Transport of Non-Local Spin-Entangled Electrons
- Evidence for crossed Andreev reflection in superconductor-ferromagnet hybrid structures
- Electronic Entanglement in the Vicinity of a Superconductor
- Experimental observation of bias-dependent non-local Andreev reflection
- Noise of Entangled Electrons: Bunching and Antibunching
- Orbital entanglement and violation of Bell inequalities in mesoscopic conductors
- Bell inequalities and entanglement in solid state devices
- Interference of two electrons entering a superconductor
- Production and detection of entangled electron-hole pairs in a degenerate electron gas
- Subgap Conductivity of a Superconducting-Normal Tunnel Interface
- Superconductor coupled to two Luttinger liquids as an entangler for electron spins
- Positive and negative Hanbury-Brown and Twiss correlations in normal metal-superconducting devices
- Current-current correlations in hybrid superconducting and normal metal multiterminal structures
- Sign of the crossed conductances at a FSF double interface
- Chaotic dot-superconductor analog of the Hanbury Brown Twiss effect
- Angle dependence of Andreev scattering at semiconductor-superconductor interfaces
- Andreev scattering and cotunneling between two superconductor-normal metal interfaces : the dirty limit
- Reflectionless Tunneling Through a Double-Barrier NS Junction
- Single Carbon Nanotube--Superconductor Entangler: noise correlations and EPR states
- Dynamical Coulomb blockade and spin-entangled electrons
- Entangled electron current through finite size normal-superconductor tunneling structures
- Quantum master equations for the superconductor--dot entangler
- Nonlinearity in NS transport: scattering matrix approach
- Electrical current noise of a beam splitter as a test of spin-entanglement
- Spin noise and Bell inequalities in a realistic superconductor-quantum dot entangler
- Clauser-Horne inequality for electron counting statistics in multiterminal mesoscopic conductors
- Shot-noise and conductance measurements of transparent superconductor / two-dimensional electron gas junctions
- Entanglement of electron spins in superconductors
- Andreev reflection in Si-engineered Al/InGaAs hybrid junctions
- Quasiparticle entanglement: redefinition of the vacuum and reduced density matrix approach
- Andreev reflection and enhanced subgap conductance in NbN/Au/InGaAs-InP junctions
- Energy dependent counting statistics in diffusive superconducting tunnel junctions
- Conductances in normal and normal-superconductor structures
- Quantum Charge Fluctuations in a Superconducting Grain
- Coherent transport in Nb/delta-doped-GaAs hybrid microstructures
- Clauser-Horne inequality and decoherence in mesoscopic conductors
Cited by in corpus (4)
- Andreev drag effect via magnetic quasiparticle focusing in normal-superconductor nanojunctions
- Effect of inelastic scattering on spin entanglement detection through current noise
- Entanglement production in chaotic quantum dots subject to spin-orbit coupling
- Quantum Coherence of Electrons Field-Emitted from a Superconductor: Correlations and Entanglement