Coherent probing of excited quantum dot states in an interferometer

Details Coherent probing of excited quantum dot states in an interferometer Coherent probing of excited quantum dot states in an interferometer

2006-10-04

arxiv.org/abs/cond-mat/0610128v1

Phys. Rev. Lett. 98, 036805 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.98.036805

Measurements of elastic and inelastic cotunneling currents are presented on a two-terminal Aharonov--Bohm interferometer with a Coulomb blockaded quantum dot embedded in each arm. Coherent current contributions, even in magnetic field, are found in the nonlinear regime of inelastic cotunneling at finite bias voltage. The phase of the Aharonov--Bohm oscillations in the current exhibits phase jumps of $\pi$ at the onsets of inelastic processes. We suggest that additional coherent elastic processes occur via the excited state. Our measurement technique allows the detection of such processes on a background of other inelastic current contributions and contains information about the excited state occupation probability and the inelastic relaxation rates.

Affiliated with

Also associated with

No associations

Rating

Coherent probing of excited quantum dot states in an interferometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Coherent probing of excited quantum dot states in an interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coherent probing of excited quantum dot states in an interferometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-155737