• Media type: E-Article; Text
  • Title: Entanglement-enhanced time-continuous quantum control in optomechanics
  • Contributor: Hofer, Sebastian G. [Author]; Hammerer, Klemens [Author]
  • imprint: College Park, MD : American Physical Society, 2015
  • Published in: Physical Review A 91 (2015), Nr. 3
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.15488/4860; https://doi.org/10.1103/PhysRevA.91.033822
  • ISSN: 2469-9926
  • Keywords: Low-entropy mechanical state ; bipartite mechanical entanglement ; Quantum control
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: The cavity-optomechanical radiation pressure interaction provides the means to create entanglement between a mechanical oscillator and an electromagnetic field interacting with it. Here we show how we can utilize this entanglement within the framework of time-continuous quantum control, in order to engineer the quantum state of the mechanical system. Specifically, we analyze how to prepare a low-entropy mechanical state by (measurement-based) feedback cooling operated in the blue-detuned regime, the creation of bipartite mechanical entanglement via time-continuous entanglement swapping, and preparation of a squeezed mechanical state by time-continuous teleportation. The protocols presented here are feasible in optomechanical systems exhibiting a cooperativity larger than 1.
  • Access State: Open Access
  • Rights information: Attribution (CC BY)