LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "central spin" as a keyword



On the exact solvability of the anisotropic central spin model: An operator approach

Sign Up to like & get
recommendations! 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 & get
recommendations! 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 & get
recommendations! 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

Integrability and dark states of the XX spin-1 central spin model in a transverse field

Sign Up to like & get
recommendations! Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.110.205427

Abstract: It was recently shown that, for central spin-1/2 and central spin-1, the XX central spin model is integrable in the presence of a magnetic field oriented perpendicular to the XY plane in which the coupling… read more here.

Keywords: field; spin model; central spin; spin central ... See more keywords

Hilbert space fragmentation and subspace scar time-crystallinity in driven homogeneous central-spin models

Sign Up to like & get
recommendations! Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.111.014302

Abstract: We study the stroboscopic non-equilibrium quantum dynamics of periodically kicked Hamiltonians involving homogeneous central-spin interactions. The system exhibits a strong fragmentation of Hilbert space into four-dimensional Floquet-Krylov subspaces, which oscillate between two disjointed two-dimensional subspaces… read more here.

Keywords: homogeneous central; time; hilbert space; scar ... See more keywords

Efficient algorithms for the dynamics of large and infinite classical central spin models

Sign Up to like & get
recommendations! 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 & get
recommendations! 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 & get
recommendations! 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

Controlled State Transfer in Central Spin Models

Sign Up to like & get
recommendations! Published in 2024 at "Symmetry"

DOI: 10.3390/sym16040489

Abstract: In the recent literature, various aspects of the transfer of quantum states by spin chains have been thoroughly investigated. Part of the existing study is devoted to the problem of optimal control, with the goal… read more here.

Keywords: state; central spin; state transfer; spin models ... See more keywords