Entanglement and Spin Squeezing in the Evolution of a Resonant Field in a Kell-Like Medium
Sign Up to like & getrecommendations! 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… read more here.
Keywords: squeezing evolution; spin; resonant field; entanglement spin ... See more keywords
Concurrent spin squeezing and field tracking with machine learning
Sign Up to like & getrecommendations! Published in 2024 at "Nature Physics"
DOI: 10.1038/s41567-025-02855-3
Abstract: Squeezing and entanglement play crucial roles in approaches for quantum metrology. Yet, demonstrating quantum enhancement in continuous signal tracking remains a challenging endeavour because simultaneous entanglement generation and signal perturbations are often incompatible. We demonstrate… read more here.
Keywords: spin squeezing; squeezing field; metrology; field tracking ... See more keywords
Engineering long-lived entanglement through dissipation in quantum hybrid solid-state platforms
Sign Up to like & getrecommendations! Published in 2024 at "New Journal of Physics"
DOI: 10.1088/1367-2630/adfe88
Abstract: Spin squeezing, a form of many-body entanglement, is a crucial resource in quantum metrology and information processing. While experimentally viable protocols for generating stable spin squeezing have been proposed in quantum optics setups, there is… read more here.
Keywords: spin squeezing; state; solid state; quantum hybrid ... 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
Monogamy-of-entanglement-inspired protocol for quantifying bipartite entanglement using spin squeezing
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/hvmh-h7h8
Abstract: Quantum entanglement is an essential resource for quantum science and technology. However, entanglement detection and quantification, via typical entanglement measures such as linear entanglement entropy or negativity, can be a very challenging task. Here we… read more here.
Keywords: spin squeezing; bipartite entanglement; entanglement; protocol ... See more keywords
Observation of Spin Squeezing with Contact Interactions in One- and Three-Dimensional Easy-Plane Magnets.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/jqvz-kpwg
Abstract: Spin squeezing in a many-body system is a witness for entanglement and can enable measurement sensitivities beyond those achievable by only classical correlations. Here, working with ultracold ^{7}Li atoms in an optical lattice, we demonstrate… read more here.
Keywords: spin squeezing; observation spin; interactions one; contact interactions ... 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
Sign Up to like & getrecommendations! 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.… 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
Exploring spin squeezing in the Mott insulating regime: Role of anisotropy, inhomogeneity, and hole doping
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.109.214310
Abstract: Spin-squeezing in systems with single-particle control is a well-established resource of modern quantum technology. Applied in an optical lattice clock can reduce the statistical uncertainty of spectroscopic measurements. Here, we consider dynamic generation of spin-squeezing… read more here.
Keywords: spin squeezing; squeezing mott; role; exploring spin ... See more keywords