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

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...

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Bibliographic Details
Published inEQEC '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
LanguageEnglish
Published IEEE 2005
Subjects
Atomic measurements
Fluctuations
Noise cancellation
Optical coupling
Optical polarization
Proposals
Quantum entanglement
Signal to noise ratio
Stationary state
Teleportation
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Summary: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 operators to perform the QND interaction in this scheme are identified, together with the possible sources of error and noise arising from these choices.
ISBN:9780780389731
0780389735
DOI:10.1109/EQEC.2005.1567442