Interferometry using spatial adiabatic passage in quantum dot networks

Abstract

We show that techniques of spatial adiabatic passage can be used to realise an electron interferometer in a geometry analogous to a conventional Aharonov-Bohm ring, with transport of the particle through the device modulated using coherent transport adiabatic passage. This device shows an interesting interplay between the adiabatic and non-adiabatic behaviour of the system. The transition between non-adiabatic and adiabatic behaviour may be tuned via system parameters and the total time over which the protocol is enacted. Interference effects in the final state populations analogous to the electrostatic Aharonov-Bohm effect are observed.

Version accepted in Phys. Rev. B, 8 pages, 6 figures

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• Dark State Adiabatic Passage with spin-one particles
• Coherent transfer by adiabatic passage in two-dimensional lattices
• Robust Multiple-Range Coherent Quantum State Transfer
• Parallel interaction-free measurement using spatial adiabatic passage
• Electric-field-induced interferometric resonance of a one-dimensional spin-orbit-coupled electron
• Dark state adiabatic passage with branched networks and high-spin systems: spin separation and entanglement