Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-05-30
Phys. Rev. B 84, 081305(R) (2011)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 2 figures. Published version, revised title, minor changes to the text
Scientific paper
10.1103/PhysRevB.84.081305
We develop a versatile master equation approach to describe the non-equilibrium dynamics of a two-level system in contact with a bosonic environment, which allows for the exploration of a wide range of parameter regimes within a single formalism. As an experimentally relevant example, we apply this technique to the study of excitonic Rabi rotations in a driven quantum dot, and compare its predictions to the numerical Feynman integral approach. We find excellent agreement between the two methods across a generally difficult range of parameters. In particular, the variational master equation technique captures effects usually considered to be non-perturbative, such as multi-phonon processes and bath-induced driving renormalisation, and can give reliable results even in regimes in which previous master equation approaches fail.
Dattani Nikesh S.
Gauger Erik M.
Lovett Brendon W.
McCutcheon Dara P. S.
Nazir Ahsan
No associations
LandOfFree
A general approach to quantum dynamics using a variational master equation: Application to phonon-damped Rabi rotations in 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 A general approach to quantum dynamics using a variational master equation: Application to phonon-damped Rabi rotations in quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A general approach to quantum dynamics using a variational master equation: Application to phonon-damped Rabi rotations in quantum dots will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-678547