Spin squeezing in spinor condensates enables the control of quantum spin fluctuations in a fascinating multi-mode system. Further, it provides a coherent spin system characterized by sub-shot-noise spin fluctuations, with applications towards sensitive spatially-resolved magnetometry. With the application of appropriate unitary transformations, we show that one may manipulate the spin fluctuation modes atop an arbitrary F=1 coherent state, and in so doing prepare an arbitrary F=1 spin squeezed state. Taking into account experimental limitations to spin squeezing such as atom loss and nonlinear interactions in the condensate, we find that one may achieve roughly 17 dB of spin squeezing in the single mode regime and 10 dB of spin squeezing in the multi mode regime, for reasonable experimental parameters.
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Authors
Sabrina Leslie
Physics Dept, UC Berkeley
Jay Sau
Physics Dept, UC Berkeley
University of California Berkeley and MSD Lawrence Berkeley National Laboratory
Marvin L. Cohen
The department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
UC Berkeley, Lawrence Berkeley National Labratory
University of California Berkeley
Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
Department of Physics, University of California at Berkeley and Materials Sciences Division of Lawrence Berkeley National Laboratory
Physics Dept, UC Berkeley
University of California, Berkeley and MSD, Lawrence Berkeley National Laboratory
Dan Stamper-Kurn
University of California, Berkeley
University of California, Berkeley and Lawrence Berkeley National Laboratory
