Conditions for a QND measurement of spin in cold /sup 87/Rb

• Published in: EQEC '05. European Quantum Electronics Conference, 2005 p. 276
• Main Authors: de Echaniz, S.R., Kubasik, M., Crepaz, H., Mitchell, M.W., Eschner, J., Polzik, E.S.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2005
• Subjects: Atomic measurements; Fluctuations; Noise cancellation; Optical coupling; Optical polarization; Proposals; Quantum entanglement; Signal to noise ratio; Stationary state; Teleportation

A scheme to generate spin squeezing via a quantum non-demolition (QND) measurement in a cold sample of /sup 87/Rb atoms is proposed using the /sup 5/S/sub 1/2/ (F = 1) hyperfine ground state. In this system it is expected to have a much higher signal to noise ratio. Suitable Zeeman substates and ope...