<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of hal-03357478</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-17T04:27:30+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">Quantum Fisher information from randomized measurements</title>
            <author role="aut">
              <persName>
                <forename type="first">Aniket</forename>
                <surname>Rath</surname>
              </persName>
              <idno type="halauthorid">2293190-0</idno>
              <affiliation ref="#struct-1043152"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Cyril</forename>
                <surname>Branciard</surname>
              </persName>
              <email type="md5">aff8c1a177909fb99ea687ca015e2987</email>
              <email type="domain">neel.cnrs.fr</email>
              <idno type="idhal" notation="string">cyril-branciard</idno>
              <idno type="idhal" notation="numeric">182956</idno>
              <idno type="halauthorid" notation="string">29112-182956</idno>
              <idno type="ORCID">https://orcid.org/0000-0001-9460-825X</idno>
              <idno type="IDREF">https://www.idref.fr/234060557</idno>
              <idno type="ARXIV">https://arxiv.org/a/branciard_c_1</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/A-6964-2012</idno>
              <idno type="GOOGLE SCHOLAR">QL6D9OAAAAAJ</idno>
              <affiliation ref="#struct-1043202"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Anna</forename>
                <surname>Minguzzi</surname>
              </persName>
              <idno type="halauthorid">58554-0</idno>
              <affiliation ref="#struct-1043152"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Benoît</forename>
                <surname>Vermersch</surname>
              </persName>
              <idno type="halauthorid">597276-0</idno>
              <affiliation ref="#struct-1043152"/>
              <affiliation ref="#struct-490478"/>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Armelle</forename>
                <surname>Michetti</surname>
              </persName>
              <email type="md5">420c10e5866af040c252a1a9a4a87834</email>
              <email type="domain">neel.cnrs.fr</email>
            </editor>
            <funder ref="#projanr-51765"/>
            <funder ref="#projanr-37845"/>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2023-08-25 10:19:34</date>
              <date type="whenModified">2025-11-21 08:42:53</date>
              <date type="whenReleased">2023-08-25 10:38:08</date>
              <date type="whenProduced">2021</date>
              <date type="whenEndEmbargoed">2023-08-25</date>
              <ref type="file" target="https://hal.science/hal-03357478v1/document">
                <date notBefore="2023-08-25"/>
              </ref>
              <ref type="file" subtype="greenPublisher" n="1" target="https://hal.science/hal-03357478v1/file/PhysRevLett.127.260501.pdf" id="file-4187742-3650237">
                <date notBefore="2023-08-25"/>
              </ref>
              <ref type="externalLink" target="http://arxiv.org/pdf/2105.13164"/>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="110340">
                <persName>
                  <forename>Armelle</forename>
                  <surname>Michetti</surname>
                </persName>
                <email type="md5">420c10e5866af040c252a1a9a4a87834</email>
                <email type="domain">neel.cnrs.fr</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">hal-03357478</idno>
            <idno type="halUri">https://hal.science/hal-03357478</idno>
            <idno type="halBibtex">rath:hal-03357478</idno>
            <idno type="halRefHtml">&lt;i&gt;Physical Review Letters&lt;/i&gt;, 2021, 127 (26), pp.260501. &lt;a target="_blank" href="https://dx.doi.org/10.1103/PhysRevLett.127.260501"&gt;&amp;#x27E8;10.1103/PhysRevLett.127.260501&amp;#x27E9;&lt;/a&gt;</idno>
            <idno type="halRef">Physical Review Letters, 2021, 127 (26), pp.260501. &amp;#x27E8;10.1103/PhysRevLett.127.260501&amp;#x27E9;</idno>
            <availability status="restricted">
              <licence target="https://about.hal.science/hal-authorisation-v1/">HAL Authorization<ref corresp="#file-4187742-3650237"/></licence>
            </availability>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="UGA">HAL Grenoble Alpes</idno>
            <idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno>
            <idno type="stamp" n="INPG">Institut polytechnique de Grenoble</idno>
            <idno type="stamp" n="NEEL">Institut Néel</idno>
            <idno type="stamp" n="LPMMC" corresp="CNRS">Laboratoire de Physique et Modélisation des Milieux Condensés</idno>
            <idno type="stamp" n="NEEL-NPSC">Nanophysique et semiconducteurs</idno>
            <idno type="stamp" n="UGA-EPE">Université Grenoble Alpes [2020-*]</idno>
            <idno type="stamp" n="ANR">ANR</idno>
            <idno type="stamp" n="TEST-UGA">TEST-UGA</idno>
            <idno type="stamp" n="ANR_QUANTIQUE">ANR QUANTIQUE</idno>
            <idno type="stamp" n="ANR_QUANTIQUE_1" corresp="ANR_QUANTIQUE">ANR_QUANTIQUE_1</idno>
          </seriesStmt>
          <notesStmt>
            <note type="commentary">6 + 6 pages with 3 + 3 figures</note>
            <note type="audience" n="2">International</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">Quantum Fisher information from randomized measurements</title>
                <author role="aut">
                  <persName>
                    <forename type="first">Aniket</forename>
                    <surname>Rath</surname>
                  </persName>
                  <idno type="halauthorid">2293190-0</idno>
                  <affiliation ref="#struct-1043152"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Cyril</forename>
                    <surname>Branciard</surname>
                  </persName>
                  <email type="md5">aff8c1a177909fb99ea687ca015e2987</email>
                  <email type="domain">neel.cnrs.fr</email>
                  <idno type="idhal" notation="string">cyril-branciard</idno>
                  <idno type="idhal" notation="numeric">182956</idno>
                  <idno type="halauthorid" notation="string">29112-182956</idno>
                  <idno type="ORCID">https://orcid.org/0000-0001-9460-825X</idno>
                  <idno type="IDREF">https://www.idref.fr/234060557</idno>
                  <idno type="ARXIV">https://arxiv.org/a/branciard_c_1</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/A-6964-2012</idno>
                  <idno type="GOOGLE SCHOLAR">QL6D9OAAAAAJ</idno>
                  <affiliation ref="#struct-1043202"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Anna</forename>
                    <surname>Minguzzi</surname>
                  </persName>
                  <idno type="halauthorid">58554-0</idno>
                  <affiliation ref="#struct-1043152"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Benoît</forename>
                    <surname>Vermersch</surname>
                  </persName>
                  <idno type="halauthorid">597276-0</idno>
                  <affiliation ref="#struct-1043152"/>
                  <affiliation ref="#struct-490478"/>
                </author>
              </analytic>
              <monogr>
                <idno type="halJournalId" status="VALID">17980</idno>
                <idno type="issn">0031-9007</idno>
                <idno type="eissn">1079-7114</idno>
                <title level="j">Physical Review Letters</title>
                <imprint>
                  <publisher>American Physical Society</publisher>
                  <biblScope unit="volume">127</biblScope>
                  <biblScope unit="issue">26</biblScope>
                  <biblScope unit="pp">260501</biblScope>
                  <date type="datePub">2021</date>
                </imprint>
              </monogr>
              <idno type="arxiv">2105.13164</idno>
              <idno type="doi">10.1103/PhysRevLett.127.260501</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <classCode scheme="halDomain" n="phys">Physics [physics]</classCode>
              <classCode scheme="halDomain" n="phys.qphy">Physics [physics]/Quantum Physics [quant-ph]</classCode>
              <classCode scheme="halTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halOldTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halTreeTypology" n="ART">Journal articles</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>The quantum Fisher information (QFI) is a fundamental quantity of interest in many areas from quantum metrology to quantum information theory. It can in particular be used as a witness to establish the degree of multi-particle entanglement in quantum many-body-systems. In this work, we use polynomials of the density matrix to construct monotonically increasing lower bounds that converge to the QFI. Using randomized measurements we propose a protocol to accurately estimate these lower bounds in state-of-art quantum technological platforms. We perform numerical analysis to obtain the number of measurements required to overcome statistical errors for the lower bound estimates and provide two examples of applications of the method in quantum systems made of coupled qubits and collective spins.</p>
            </abstract>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="laboratory" xml:id="struct-1043152" status="VALID">
          <idno type="IdRef">184696747</idno>
          <idno type="ISNI">0000 0004 0384 2377</idno>
          <idno type="RNSR">199511944J</idno>
          <idno type="ROR">https://ror.org/02mc6qk71</idno>
          <orgName>Laboratoire de physique et modélisation des milieux condensés</orgName>
          <orgName type="acronym">LPM2C</orgName>
          <date type="start">2020-01-01</date>
          <desc>
            <address>
              <addrLine>Maison des Magistères/CNRS 25 Av des martyrs - BP 166 38042 GRENOBLE CEDEX 9</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://lpmmc.grenoble.cnrs.fr/</ref>
          </desc>
          <listRelation>
            <relation name="UMR5493" active="#struct-441569" type="direct"/>
            <relation active="#struct-1042703" type="direct"/>
          </listRelation>
        </org>
        <org type="researchteam" xml:id="struct-1043202" status="VALID">
          <orgName>Nanophysique et Semiconducteurs</orgName>
          <orgName type="acronym">NEEL - NPSC</orgName>
          <date type="start">2020-01-01</date>
          <desc>
            <address>
              <addrLine>Institut NEEL, 25 rue des Martyrs, BP 166,38042 Grenoble cedex 9</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://neel.cnrs.fr/equipes-poles-et-services/nanophysique-et-semiconducteurs-npsc</ref>
          </desc>
          <listRelation>
            <relation active="#struct-1043183" type="direct"/>
            <relation name="UPR2940" active="#struct-441569" type="indirect"/>
            <relation active="#struct-1042703" type="indirect"/>
            <relation active="#struct-1043329" type="indirect"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-490478" status="VALID">
          <idno type="ROR">https://ror.org/054pv6659</idno>
          <orgName>Leopold Franzens Universität Innsbruck - University of Innsbruck</orgName>
          <desc>
            <address>
              <addrLine>Innrain 52, A-6020 Innsbruck</addrLine>
              <country key="AT"/>
            </address>
            <ref type="url">https://www.uibk.ac.at/</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-441569" status="VALID">
          <idno type="IdRef">02636817X</idno>
          <idno type="ISNI">0000000122597504</idno>
          <idno type="ROR">https://ror.org/02feahw73</idno>
          <orgName>Centre National de la Recherche Scientifique</orgName>
          <orgName type="acronym">CNRS</orgName>
          <date type="start">1939-10-19</date>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.cnrs.fr/</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-1042703" status="VALID">
          <idno type="IdRef">240648315</idno>
          <idno type="ROR">https://ror.org/02rx3b187</idno>
          <orgName>Université Grenoble Alpes</orgName>
          <orgName type="acronym">UGA</orgName>
          <date type="start">2020-01-01</date>
          <desc>
            <address>
              <addrLine>Adresse CS 40700 - 38058 Grenoble cedex</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.univ-grenoble-alpes.fr</ref>
          </desc>
        </org>
        <org type="laboratory" xml:id="struct-1043183" status="VALID">
          <idno type="IdRef">183998693</idno>
          <idno type="ISNI">0000 0004 0369 268X</idno>
          <idno type="RNSR">200717524X</idno>
          <idno type="ROR">https://ror.org/04dbzz632</idno>
          <orgName>Institut Néel</orgName>
          <orgName type="acronym">NEEL</orgName>
          <date type="start">2020-01-01</date>
          <desc>
            <address>
              <addrLine>Institut NEEL, 25 rue des Martyrs, BP 166,38042 Grenoble cedex 9</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.neel.cnrs.fr/</ref>
          </desc>
          <listRelation>
            <relation name="UPR2940" active="#struct-441569" type="direct"/>
            <relation active="#struct-1042703" type="direct"/>
            <relation active="#struct-1043329" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-1043329" status="VALID">
          <idno type="IdRef">026388804</idno>
          <idno type="ROR">https://ror.org/05sbt2524</idno>
          <orgName>Institut polytechnique de Grenoble - Grenoble Institute of Technology</orgName>
          <orgName type="acronym">Grenoble INP</orgName>
          <date type="start">2020-01-01</date>
          <desc>
            <address>
              <addrLine>46 avenue Félix Viallet 38031 Grenoble Cedex 1</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.grenoble-inp.fr/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-1042703" type="direct"/>
          </listRelation>
        </org>
      </listOrg>
      <listOrg type="projects">
        <org type="anrProject" xml:id="projanr-51765" status="VALID">
          <idno type="anr">ANR-20-CE47-0005</idno>
          <orgName>QRand</orgName>
          <desc>Caractérisation et vérification des technologies quantiques de grande échelle par mesures aléatoires</desc>
          <date type="start">2020</date>
        </org>
        <org type="anrProject" xml:id="projanr-37845" status="VALID">
          <idno type="anr">ANR-10-LABX-0051</idno>
          <idno type="program">Laboratoires d'excellence</idno>
          <orgName>LANEF</orgName>
          <desc>Laboratory of Alliances on Nanosciences - Energy for the Future</desc>
          <date type="start">2010</date>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>