Tunable entanglement generation for mobile-electron spin qubits
arXiv:cond-mat/0505049 · doi:10.1063/1.2041821
Abstract
Recent studies have shown that linear electron optics can be used to generate entangled two-particle states from nonentangled ones if additional measurements of charge or parity are performed. We have investigated such nondeterministic entanglement production in electronic versions of the Mach-Zehnder interferometer, where spin-dependent interference occurs due to the presence of electric-field tunable Rashba spin splitting. Adjustment of the spin-precession length turns out to switch the entangler on and off, as well as control the detailed form of entangled output states.
3+ pages, 3 figures, RevTex4, v3: figures improved + references added, to appear in Appl. Phys. Lett
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- Perfect spin filtering device through a Mach Zehnder interferometer in GaAs/AlGaAs electron gas
- No approximate complex fermion coherent states
- Mach-Zehnder Interferometric device for spin filtering in a GaAs/AlGaAs electron gas
- Mach--Zehnder-like interferometry with graphene nanoribbon networks