Interferometry using spatial adiabatic passage in quantum dot networks

Details Interferometry using spatial adiabatic passage in quantum dot networks Interferometry using spatial adiabatic passage in quantum dot networks

2009-09-25

arxiv.org/abs/0909.4608v2

Physics

Quantum Physics

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

Scientific paper

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.

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