Year: 2005
Type: article
Abstract: We study the conditions for generating spin squeezing via a quantum non-demolition measurement in an ensemble of cold 87 Rb atoms. By considering the interaction of atoms in the 5S 1/2 ( F = 1) ground state with probe light tuned near the D 2 transition, we show that, for large detunings, this system is equivalent to a spin-1/2 system when suitable Zeeman substates and quantum operators are used to define a pseudo-spin. The degree of squeezing is derived for the rubidium system in the presence of scattering causing decoherence and loss. We describe how the system can decohere and lose atoms, and predict as much as 75% spin squeezing for atomic densities typical of optical dipole traps.
Institutions: Institute of Photonic Sciences, University of Copenhagen
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2016731098