2000/09/30 by G. B. Lesovik, Gordey B. Lesovik, Thierry Martin +2 · 4 citations
Physics and Astronomy · #Condensed matter physics #Cooper pair #Current (fluid) #Degrees of freedom (physics and chemistry) #Magnetic properties of thin films #Particle (ecology) #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum entanglement #Quantum mechanics #Spin (aerodynamics) #Superconductivity #cond-mat.mes-hall #cond-mat.supr-con #quant-ph
paper · pdf · doi:10.1007/s10051-001-8675-4
published as Eur. Phys. J. B 24, 287 (2001) · 4 pages, 2 eps figures, minor additions (including entangled wave function and particle number correlator)
arxiv created 2001/09/28 · openalex publication_date 2001/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A weakly biased normal-metal-superconductor junction is considered as a potential device injecting entangled pairs of quasi-particles into a normal-metal lead. The two-particle states arise from Cooper pairs decaying into the normal lead and are characterized by entangled spin- and orbital degrees of freedom. The separation of the entangled quasi-particles is achieved with a fork geometry and normal leads containing spin- or energy-selective filters. Measuring the current-current cross-correlator between the two normal leads allows to probe the efficiency of the entanglement.