6533b7cffe1ef96bd12585ed
RESEARCH PRODUCT
Entanglement-enhanced detection of single-photon scattering events
Christian F. RoosChristian F. RoosRainer BlattRainer BlattB. P. LanyonRene GerritsmaRene GerritsmaPetar JurcevicPetar JurcevicCornelius HempelCornelius Hempelsubject
PhysicsQuantum PhysicsPhotonAtomic Physics (physics.atom-ph)ScatteringFOS: Physical sciencesQuantum entanglement01 natural sciencesAtomic and Molecular Physics and OpticsPhysics - Atomic Physics010305 fluids & plasmasElectronic Optical and Magnetic MaterialsIonMomentum0103 physical sciencesSensitivity (control systems)Atomic physicsQuantum Physics (quant-ph)010306 general physicsSpectroscopyPhoton scatteringdescription
The ability to detect the interaction of light and matter at the single-particle level is becoming increasingly important for many areas of science and technology. The absorption or emission of a photon on a narrow transition of a trapped ion can be detected with near unit probability, thereby enabling the realization of ultra-precise ion clocks and quantum information processing applications. Extending this sensitivity to broad transitions is challenging due to the difficulty of detecting the rapid photon scattering events in this case. Here, we demonstrate a technique to detect the scattering of a single photon on a broad optical transition with high sensitivity. Our approach is to use an entangled state to amplify the tiny momentum kick an ion receives upon scattering a photon. The method should find applications in spectroscopy of atomic and molecular ions and quantum information processing.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 | Nature Photonics |