On the exact solvability of the anisotropic central spin model: An operator approach
Sign Up to like & getrecommendations! Published in 2018 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2018.02.158
Abstract: Abstract Using an operator approach based on a commutator scheme that has been previously applied to Richardson’s reduced BCS model and the inhomogeneous Dicke model, we obtain general exact solvability requirements for an anisotropic central… read more here.
Keywords: anisotropic central; operator approach; central spin; model ... See more keywords
Dynamics of the homogeneous two-qubit XXZ central spin model with the spin bath prepared in superpositions of symmetric Dicke states
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.032409
Abstract: We obtain exact dynamics of a two-qubit central spin model (CSM) consisting of two interacting qubits homogeneously coupled to a spin bath via the $XXZ$-type coupling, with the bath initially prepared in linear superpositions of… read more here.
Keywords: bath; two qubit; central spin; model ... See more keywords
Strong-coupling emergence of dark states in XX central spin models
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.l121404
Abstract: It was recently shown that the XX central spin model is integrable in the presence of a magnetic field perpendicular to the plane in which the coupling exists. A large number of its eigenstates are… read more here.
Keywords: strong coupling; dark states; magnetic field; spin ... See more keywords
Efficient algorithms for the dynamics of large and infinite classical central spin models
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.054415
Abstract: We investigate the time dependence of correlation functions in the central spin model, which describes the electron or hole spin confined in a quantum dot, interacting with a bath of nuclear spins forming the Overhauser… read more here.
Keywords: efficient algorithms; bath spins; algorithms dynamics; central spin ... See more keywords
Quantum Rydberg Central Spin Model.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.183001
Abstract: We consider dynamics of a Rydberg impurity in a cloud of ultracold bosonic atoms in which the Rydberg electron undergoes spin-changing collisions with surrounding atoms. This system realizes a new type of quantum impurity problems… read more here.
Keywords: electron; model; spin; central spin ... See more keywords
Experimental Detection of the Correlation Rényi Entropy in the Central Spin Model.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.080401
Abstract: We propose and experimentally measure an entropy that quantifies the volume of correlations among qubits. The experiment is carried out on a nearly isolated quantum system composed of a central spin coupled and initially uncorrelated… read more here.
Keywords: correlation nyi; experimental detection; central spin; nyi entropy ... See more keywords