6533b872fe1ef96bd12d2ea8
RESEARCH PRODUCT
Fast and robust population transfer in two-level quantum systems with dephasing noise and/or systematic frequency errors
Xi ChenXi ChenXiao-jing LuXiao-jing LuAndreas RuschhauptStéphane GuérinDaniel AlonsoJ. G. MugaJ. G. Mugasubject
PhysicsQuantum Physicseducation.field_of_studyAtomsQuantum decoherenceDephasingPopulationFOS: Physical sciencesInverseState diffusionAdiabatic passageNoise (electronics)Atomic and Molecular Physics and OpticsQuantum mechanicsPhase noiseQuantum Physics (quant-ph)educationEnergy (signal processing)Rabi frequencydescription
We design, by invariant-based inverse engineering, driving fields that invert the population of a two-level atom in a given time, robustly with respect to dephasing noise and/or systematic frequency shifts. Without imposing constraints, optimal protocols are insensitive to the perturbations but need an infinite energy. For a constrained value of the Rabi frequency, a flat $\pi$ pulse is the least sensitive protocol to phase noise but not to systematic frequency shifts, for which we describe and optimize a family of protocols.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 |