Generating conditional atomic entanglement by measuring photon number in a single output channel
arXiv:quant-ph/0512010 · doi:10.1103/PhysRevA.73.013801
Abstract
The polarization analysis of quantized probe light transmitted through an atomic ensemble has been used to prepare entangled collective atomic states. In a "balanced" detection configuration, where the difference signal from two detection ports is analyzed, the continuous monitoring of a component of the Stokes field vector provides a means for conditional projective measurements on the atomic system. Here, we make use of classical driving fields, in the pulsed regime, and of an "unbalanced" detection setup (single detector) where the effective photon number of scattered photons is the detected observable. Conditional atomic spin squeezed states and superpositions of such squeezed states can be prepared in this manner.
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Cited by in corpus (9)
- Quantum interface between light and atomic ensembles
- Quantum spin squeezing
- Quantum optics with quantum gases: controlled state reduction by designed light scattering
- Scattering of polarized laser light by an atomic gas in free space: a QSDE approach
- Entangled-State Cycles of Atomic Collective-Spin States
- Atomic entanglement generation with reduced decoherence via four-wave mixing
- Analysis of photon-atom entanglement generated by Faraday rotation in a cavity
- Macroscopic Schrödinger-cat states of nonequilibrium electrons induced by cat-state optical driving and projective measurements on the light field
- Cooperative spin decoherence and population transfer