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Qubit-environment entanglement outside of pure decoherence: Hyperfine interaction

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00571605" target="_blank" >RIV/68378271:_____/23:00571605 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevB.107.085428" target="_blank" >https://doi.org/10.1103/PhysRevB.107.085428</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevB.107.085428" target="_blank" >10.1103/PhysRevB.107.085428</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Qubit-environment entanglement outside of pure decoherence: Hyperfine interaction

  • Original language description

    In spin-based architectures of quantum devices, the hyperfine interaction between the electron spin qubit and the nuclear spin environment remains one of the main sources of decoherence. This paper provides a short review of the current advances in the theoretical description of the qubit decoherence dynamics. Next, we study the qubit-environment entanglement using negativity as its measure. For an initial maximally mixed state of the environment, we study negativity dynamics as a function of environment size, changing the numbers of environmental nuclei and the total spin of the nuclei. Furthermore, we study the effect of the magnetic field on qubit-environment disentangling timescales.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review B

  • ISSN

    2469-9950

  • e-ISSN

    2469-9969

  • Volume of the periodical

    107

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    085428

  • UT code for WoS article

    000944149000005

  • EID of the result in the Scopus database

    2-s2.0-85149704942