Optimal pumping of orbital entanglement with single particle emitters
arXiv:1201.1509 · doi:10.1103/PhysRevB.85.081108
Abstract
We propose a method for the optimal time-controlled generation of entangled itinerant particles, using on-demand sources in a conductor in the quantum Hall regime. This entanglement pump is realized by applying periodic, tailored voltage pulses to pairs of quantum dots or quantum point contacts. We show that the pump can produce orbital Bell pairs of both electrons and holes at the optimal rate of half a pair per pumping cycle. The entanglement can be detected by a violation of a Bell inequality formulated in terms of low-frequency current cross correlations.
arXiv comment4 pages, 1 figure
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- Single-electron source: Adiabatic versus non-adiabatic emission
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- Coulomb-blockade effect in nonlinear mesoscopic capacitors
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- Noise of a single-electron emitter
- Classical-to-quantum crossover in electron on-demand emission
- Electron-Hole Entanglement in a Quantum Spin Hall Insulator
- Quasiparticles states for integer- and fractional-charged electron wave packets
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