Thermally assisted adiabatic quantum computation

Details Thermally assisted adiabatic quantum computation Thermally assisted adiabatic quantum computation

2006-09-13

arxiv.org/abs/cond-mat/0609332v3

Phys. Rev. Lett. 100, 060503 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures, Final version to appear in PRL

Scientific paper

We study the effect of a thermal environment on adiabatic quantum computation using the Bloch-Redfield formalism. We show that in certain cases the environment can enhance the performance in two different ways: (i) by introducing a time scale for thermal mixing near the anticrossing that is smaller than the adiabatic time scale, and (ii) by relaxation after the anticrossing. The former can enhance the scaling of computation when the environment is superohmic, while the latter can only provide a prefactor enhancement. We apply our method to the case of adiabatic Grover search and show that performance better than classical is possible with a superohmic environment, with no a priori knowledge of the energy spectrum.

Affiliated with

Also associated with

No associations

Rating

Thermally assisted adiabatic quantum computation 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 Thermally assisted adiabatic quantum computation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally assisted adiabatic quantum computation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-537116