Zeeman energy and spin relaxation in a one-electron quantum dot

Details Zeeman energy and spin relaxation in a one-electron quantum dot Zeeman energy and spin relaxation in a one-electron quantum dot

2003-03-07

arxiv.org/abs/cond-mat/0303139v2

Phys. Rev. Lett. 91, 196802 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Replaced with the version published in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.91.196802

We have measured the relaxation time, T1, of the spin of a single electron confined in a semiconductor quantum dot (a proposed quantum bit). In a magnetic field, applied parallel to the two-dimensional electron gas in which the quantum dot is defined, Zeeman splitting of the orbital states is directly observed by measurements of electron transport through the dot. By applying short voltage pulses, we can populate the excited spin state with one electron and monitor relaxation of the spin. We find a lower bound on T1 of 50 microseconds at 7.5 T, only limited by our signal-to-noise ratio. A continuous measurement of the charge on the dot has no observable effect on the spin relaxation.

Affiliated with

Also associated with

No associations

Rating

Zeeman energy and spin relaxation in a one-electron quantum dot 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 Zeeman energy and spin relaxation in a one-electron quantum dot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zeeman energy and spin relaxation in a one-electron quantum dot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-440547