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Dark Bell states in tunnel-coupled spin qubits

AuthorsSánchez, Rafael ; Platero, Gloria
Issue Date2013
PublisherAmerican Institute of Physics
CitationPhysical Review B 87: 081305(R) (2013)
AbstractWe investigate the dynamical purification of maximally entangled electron states by transport through coupled quantum dots. Under resonant ac driving and coherent tunneling, even-parity Bell states perform Rabi oscillations that decouple from the environment, leading to a dark state. The two electrons remain spatially separated, one in each quantum dot. We propose configurations where this effect will prove as antiresonances in transport spectroscopy experiments. © 2013 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.87.081305
Identifiersdoi: 10.1103/PhysRevB.87.081305
issn: 1098-0121
e-issn: 1550-235X
Appears in Collections:(ICMM) Artículos
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