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Preparation of Low Entropy Correlated Many-body States via Conformal Cooling Quenches
Michael P. Zaletel, Adam M. Kaufman, Dan M. Stamper-Kurn +1
We analyze a method for preparing low-entropy many-body states in isolated quantum optical systems of atoms, ions and molecules. Our approach is based upon shifting entropy between…
Interferometric Approach to Probing Fast Scrambling
Norman Y. Yao, Fabian Grusdt, Brian Swingle +4
Out-of-time-order correlation functions provide a proxy for diagnosing chaos in quantum systems. We propose and analyze an interferometric scheme for their measurement, using only…
Cavity-assisted measurement and coherent control of collective atomic spin oscillators
Jonathan Kohler, Nicolas Spethmann, Sydney Schreppler +1
We demonstrate continuous measurement and coherent control of the collective spin of an atomic ensemble undergoing Larmor precession in a high-finesse optical cavity. The coupling…
Complex Squeezing and Force Measurement Beyond the Standard Quantum Limit
L. F. Buchmann, S. Schreppler, J. Kohler +2
A continuous quantum field, such as a propagating beam of light, may be characterized by a squeezing spectrum that is inhomogeneous in frequency. We point out that homodyne detecto…
Signatures of spatial inversion asymmetry of an optical lattice observed in matter-wave diffraction
C. K. Thomas, T. H. Barter, T. -H. Leung +2
The structure of a two-dimensional honeycomb optical lattice potential with small inversion asymmetry is characterized using coherent diffraction of Rb atoms. We demonstrate…