Physics – Atomic Physics
Scientific paper
2011-06-17
Physics
Atomic Physics
7 pages, 6 figures
Scientific paper
The relationship between orientation-to-alignment conversion (a form of atomic polarization evolution induced by an electric field) and the phenomenon of spin squeezing is demonstrated. A "stretched" state of an atom or molecule with maximum angular-momentum projection along the quantization axis possesses orientation and is a quantum-mechanical minimum-uncertainty state, where the product of the equal uncertainties of the angular-momentum projections on two orthogonal directions transverse to the quantization axis is the minimum allowed by the uncertainty relation. Application of an electric field for a short time induces orientation-to-alignment conversion and produces a spin-squeezed state, in which the quantum state essentially remains a minimum-uncertainty state, but the uncertainties of the angular-momentum projections on the orthogonal directions are unequal. This property can be visualized using the angular-momentum probability surfaces, where the radius of the surface is given by the probability of measuring the maximum angular-momentum projection in that direction. Brief remarks are also given concerning collective-spin squeezing and quantum nondemolition measurements.
Budker Dmitry
Ledbetter Micah P.
Rochester Simon M.
Wilson-Gordon A. D.
Zigdon T.
No associations
LandOfFree
Orientation-to-alignment conversion and spin squeezing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Orientation-to-alignment conversion and spin squeezing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orientation-to-alignment conversion and spin squeezing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-696524