Adiabatic optical entanglement between electron spins in separate quantum dots

Details Adiabatic optical entanglement between electron spins in separate quantum dots Adiabatic optical entanglement between electron spins in separate quantum dots

2008-02-11

arxiv.org/abs/0802.1527v2

Phys. Rev. B 78, 235314 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 5 figures

Scientific paper

10.1103/PhysRevB.78.235314

We present an adiabatic approach to the design of entangling quantum operations with two electron spins localized in separate InAs/GaAs quantum dots via the Coulomb interaction between optically-excited localized states. Slowly-varying optical pulses minimize the pulse noise and the relaxation of the excited states. An analytic "dressed state" solution gives a clear physical picture of the entangling process, and a numerical solution is used to investigate the error dynamics. For two vertically-stacked quantum dots we show that, for a broad range of dot parameters, a two-spin state with concurrence $C>0.85$ can be obtained by four optical pulses with durations $\sim 0.1 - 1$ ns.

Affiliated with

Also associated with

No associations

Rating

Adiabatic optical entanglement between electron spins in separate quantum dots 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 Adiabatic optical entanglement between electron spins in separate quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adiabatic optical entanglement between electron spins in separate quantum dots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-107609