Geometric discord for a driven two-qubit system

Mihaescu Tatiana; Cecoi Elena; Macovei Mihai; Isar Aurelian

Conţinutul numărului revistei

Articolul precedent

Articolul urmator

596

SM ISO690:2012

MIHAESCU, Tatiana, CECOI, Elena, MACOVEI, Mihai, ISAR, Aurelian. Geometric discord for a driven two-qubit system. In: Romanian Reports in Physics, 2021, vol. 73, pp. 1-16. ISSN 1221-1451.

EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core

Romanian Reports in Physics

Volumul 73 / 2021 / ISSN 1221-1451

Geometric discord for a driven two-qubit system

Pag. 1-16

Mihaescu Tatiana¹², Cecoi Elena³, Macovei Mihai³, Isar Aurelian¹²

¹ Horia Hulubei National Institute of Physics and Nuclear Engineering,
² University of Bucharest,
³ Institute of Applied Physics

Disponibil în IBN: 8 aprilie 2021

Rezumat

We employ a rescaled version of the geometric measure of quantum discord, based on the Hilbert-Schmidt norm, to calculate it in the steady-state for a concrete system formed of a closely packed and laser-pumped pair of identical two-level qubits being initially uncorrelated and located in their ground states, respectively. Furthermore, the qubits are longitudinally coupled with a single-mode boson field, while both subsystems are damped via their corresponding environmental reservoirs. Although the employed metric is still noncontractive under quantum operations, it was shown previously in a series of physical examples that this measure of quantum correlations is in agreement with other discord measures.

Cuvinte-cheie
Geometric quantum discord

DataCite XML Export

<?xml version='1.0' encoding='utf-8'?>
<resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'>
<creators>
<creator>
<creatorName>Mihaescu, T.</creatorName>
<affiliation>Institutul Naţional de Fizică şi Inginerie Nucleară "Horia Holubei", România</affiliation>
</creator>
<creator>
<creatorName>Cecoi, E.</creatorName>
<affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Macovei, M.A.</creatorName>
<affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Isar, A.</creatorName>
<affiliation>Institutul Naţional de Fizică şi Inginerie Nucleară "Horia Holubei", România</affiliation>
</creator>
</creators>
<titles>
<title xml:lang='en'>Geometric discord for a driven two-qubit system</title>
</titles>
<publisher>Instrumentul Bibliometric National</publisher>
<publicationYear>2021</publicationYear>
<relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1221-1451</relatedIdentifier>
<subjects>
<subject>Geometric quantum discord</subject>
</subjects>
<dates>
<date dateType='Issued'>2021-03-01</date>
</dates>
<resourceType resourceTypeGeneral='Text'>Journal article</resourceType>
<descriptions>
<description xml:lang='en' descriptionType='Abstract'><p>We employ a rescaled version of the geometric measure of quantum discord, based on the Hilbert-Schmidt norm, to calculate it in the steady-state for a concrete system formed of a closely packed and laser-pumped pair of identical two-level qubits being initially uncorrelated and located in their ground states, respectively. Furthermore, the qubits are longitudinally coupled with a single-mode boson field, while both subsystems are damped via their corresponding environmental reservoirs. Although the employed metric is still noncontractive under quantum operations, it was shown previously in a series of physical examples that this measure of quantum correlations is in agreement with other discord measures.&nbsp;</p></description>
</descriptions>
<formats>
<format>application/pdf</format>
</formats>
</resource>