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Published in 2020 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-020-04504-2
Abstract: We investigate entanglement and spin squeezing in the evolution of a resonant field in a Kell-like medium. With perturbation techniques, we first obtain the approximate analytical solution of the wave function, and then we further…
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Keywords:
squeezing evolution;
spin;
resonant field;
entanglement spin ... See more keywords
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Published in 2017 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/aa6dc7
Abstract: We propose an efficient method to protect spin squeezing under the action of amplitude-damping, depolarizing and phase-damping channels based on measurement reversal from weak measurement, and consider an ensemble of N independent spin-1/2 particles with…
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Keywords:
phase damping;
squeezing decoherence;
amplitude damping;
decoherence ... See more keywords
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Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.041801
Abstract: Spin squeezing (SS) is a recognized resource for realizing measurement precision beyond the standard quantum limit $\ensuremath{\propto}1/\sqrt{N}$. The rudimentary one-axis twisting (OAT) interaction can facilitate SS and has been realized in diverse experiments, but it…
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Keywords:
extreme spin;
reinforcement learning;
spin squeezing;
deep reinforcement ... See more keywords
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Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.012412
Abstract: Entanglement witnesses based on first and second moments exist in the form of spin-squeezing criteria for the detection of particle entanglement from collective measurements, and in form of modified uncertainty relations for the detection of…
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Keywords:
spin squeezing;
relating spin;
spin;
squeezing multipartite ... See more keywords
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Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.103.032601
Abstract: The generation and storage of spin squeezing is an attractive topic in quantum metrology and the foundation of quantum mechanics. The major models to realize the spin squeezing are the one- and two-axis twisting models.…
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Keywords:
generation storage;
time;
spin squeezing;
control ... See more keywords
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Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.013318
Abstract: We propose a method of generating and detecting entanglement via spin squeezing in an exciton-polariton condensate. Spin squeezing is a sensitive detector of entanglement because any squeezing below shot noise implies entanglement. In our scheme,…
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Keywords:
via spin;
spin;
exciton polariton;
entanglement ... See more keywords
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Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.260505
Abstract: Arrays of atoms trapped in optical tweezers combine features of programmable analog quantum simulators with atomic quantum sensors. Here we propose variational quantum algorithms, tailored for tweezer arrays as programmable quantum sensors, capable of generating…
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Keywords:
programmable quantum;
spin squeezing;
quantum sensors;
variational spin ... See more keywords
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Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.019226
Abstract: Spin squeezing has received much attention due to the interesting physics and important applications such as quantum metrology and quantum information processing. We here present a scheme to engineer stable spin squeezing in an array…
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Keywords:
nitrogen vacancy;
vacancy centers;
rectangular hollow;
waveguide ... See more keywords