Entanglement and Spin Squeezing in the Evolution of a Resonant Field in a Kell-Like Medium
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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… read more here.
Keywords: squeezing evolution; spin; resonant field; entanglement spin ... See more keywords
Protecting and enhancing spin squeezing from decoherence using weak measurements
Sign Up to like & getrecommendations! 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… read more here.
Keywords: phase damping; squeezing decoherence; amplitude damping; decoherence ... See more keywords
Extreme spin squeezing from deep reinforcement learning
Sign Up to like & getrecommendations! 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… read more here.
Keywords: extreme spin; reinforcement learning; spin squeezing; deep reinforcement ... See more keywords
Relating spin squeezing to multipartite entanglement criteria for particles and modes
Sign Up to like & getrecommendations! 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… read more here.
Keywords: spin squeezing; relating spin; spin; squeezing multipartite ... See more keywords
Generation and storage of spin squeezing via learning-assisted optimal control
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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.… read more here.
Keywords: generation storage; time; spin squeezing; control ... See more keywords
Sensitive detection of entanglement in exciton-polariton condensates via spin squeezing
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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,… read more here.
Keywords: via spin; spin; exciton polariton; entanglement ... See more keywords
Variational Spin-Squeezing Algorithms on Programmable Quantum Sensors.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: programmable quantum; spin squeezing; quantum sensors; variational spin ... See more keywords
Dissipation-assisted spin squeezing of nitrogen-vacancy centers coupled to a rectangular hollow metallic waveguide.
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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… read more here.
Keywords: nitrogen vacancy; vacancy centers; rectangular hollow; waveguide ... See more keywords