Atomic quantum superposition state generation via optical probing
arXiv:0812.4048 · doi:10.1103/PhysRevA.79.023841
Abstract
We analyze the performance of a protocol to prepare an atomic ensemble in a superposition of two macroscopically distinguishable states. The protocol relies on conditional measurements performed on a light field, which interacts with the atoms inside an optical cavity prior to detection, and we investigate cavity enhanced probing with continuous beams of both coherent and squeezed light. The stochastic master equations used in the analysis are expressed in terms of the Hamiltonian of the probed system and the interaction between the probed system and the probe field and are thus quite generally applicable.
10 pages, 9 figures
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- Dynamical programming of continuously observed quantum systems
- Spin-squeezing and Dicke state preparation by heterodyne measurement
- Hypothesis testing with open quantum systems
- Fighting decoherence in a continuous two-qubit odd or even parity measurement with a closed-loop setup
- Macroscopic Schrödinger-cat states of nonequilibrium electrons induced by cat-state optical driving and projective measurements on the light field