Nonadiabatic quantum control of a semiconductor charge qubit

Details Nonadiabatic quantum control of a semiconductor charge qubit Nonadiabatic quantum control of a semiconductor charge qubit

2011-07-25

arxiv.org/abs/1107.4927v2

Phys. Rev. B (RC) 84, 161302 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Related papers at http://pettagroup.princeton.edu

Scientific paper

We demonstrate multipulse quantum control of a single electron charge qubit. The qubit is manipulated by applying nonadiabatic voltage pulses to a surface depletion gate and readout is achieved using a quantum point contact charge sensor. We observe Ramsey fringes in the excited state occupation in response to a pi/2 - pi/2 pulse sequence and extract T2* ~ 60 ps away from the charge degeneracy point. Simulations suggest these results may be extended to implement a charge-echo by reducing the interdot tunnel coupling and pulse rise time, thereby increasing the nonadiabaticity of the pulses.

Affiliated with

Also associated with

No associations

Rating

Nonadiabatic quantum control of a semiconductor charge qubit 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 Nonadiabatic quantum control of a semiconductor charge qubit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonadiabatic quantum control of a semiconductor charge qubit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-572559