6533b7d6fe1ef96bd1265b18
RESEARCH PRODUCT
Non-Markovian dynamics of a single electron spin coupled to a nuclear spin bath
Maria Anastasia JivulescuAntonino MessinaHeinz-peter BreuerAnna NapoliElena Ferrarosubject
PhysicsQuantum PhysicsQuantum decoherenceQuantum dynamicsFOS: Physical sciencesQuantum entanglementCondensed Matter PhysicsSpin quantum numberElectronic Optical and Magnetic MaterialsOpen quantum systemspin systems non-Markovian dynamicsQuantum spin Hall effectQuantum electrodynamicsQuantum mechanicsQuantum spin liquidSpin (physics)Quantum Physics (quant-ph)description
We apply the time-convolutionless (TCL) projection operator technique to the model of a central spin which is coupled to a spin bath via nonuniform Heisenberg interaction. The second-order results of the TCL method for the coherences and populations of the central spin are determined analytically and compared with numerical simulations of the full von Neumann equation of the total system. The TCL approach is found to yield an excellent approximation in the strong field regime for the description of both the short-time dynamics and the long time behavior.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-01-01 |