<codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5"><docDscr><citation><titlStmt><titl>Replication Data for: Spin squeezing in an ensemble of nitrogen-vacancy centres in diamond</titl><IDNo agency="DOI">doi:10.7910/DVN/LVPLRI</IDNo></titlStmt><distStmt><distrbtr source="archive">Harvard Dataverse</distrbtr><distDate>2025-09-16</distDate></distStmt><verStmt source="archive"><version date="2025-09-16" type="RELEASED">1</version></verStmt><biblCit>Wu, Weijie, 2025, "Replication Data for: Spin squeezing in an ensemble of nitrogen-vacancy centres in diamond", https://doi.org/10.7910/DVN/LVPLRI, Harvard Dataverse, V1</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl>Replication Data for: Spin squeezing in an ensemble of nitrogen-vacancy centres in diamond</titl><IDNo agency="DOI">doi:10.7910/DVN/LVPLRI</IDNo></titlStmt><rspStmt><AuthEnty affiliation="Harvard University">Wu, Weijie</AuthEnty></rspStmt><prodStmt/><distStmt><distrbtr source="archive">Harvard Dataverse</distrbtr><contact affiliation="Harvard University" email="weijiewu@fas.harvard.edu">Wu, Weijie</contact><depositr>Wu, Weijie</depositr><depDate>2025-09-05</depDate></distStmt><holdings URI="https://doi.org/10.7910/DVN/LVPLRI"/></citation><stdyInfo><subject><keyword xml:lang="en">Physics</keyword></subject><abstract date="2025-9-5">Files needed to reproduce figures and extended data in "Spin squeezing in an ensemble of nitrogen-vacancy centres in diamond". Unzip the data file and run the Jupyter notebooks, which contain multiple figures. Julia 1.9.4 and Python 3 are required.</abstract><sumDscr/></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/><notes type="DVN:TOU" level="dv">&lt;a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0&lt;/a></notes></dataAccs><othrStdyMat/></stdyDscr><otherMat ID="f12050321" URI="https://dataverse.harvard.edu/api/access/datafile/12050321" level="datafile"><labl>cluster DTWA sample code.zip</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zip</notes></otherMat><otherMat ID="f12050318" URI="https://dataverse.harvard.edu/api/access/datafile/12050318" level="datafile"><labl>data_process_julia.ipynb</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-ipynb+json</notes></otherMat><otherMat ID="f12050322" URI="https://dataverse.harvard.edu/api/access/datafile/12050322" level="datafile"><labl>data_process_python.ipynb</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-ipynb+json</notes></otherMat><otherMat ID="f12050320" URI="https://dataverse.harvard.edu/api/access/datafile/12050320" level="datafile"><labl>Data.zip</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zip</notes></otherMat><otherMat ID="f12050323" URI="https://dataverse.harvard.edu/api/access/datafile/12050323" level="datafile"><labl>norm2.mplstyle</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/octet-stream</notes></otherMat><otherMat ID="f12050319" URI="https://dataverse.harvard.edu/api/access/datafile/12050319" level="datafile"><labl>readme.txt</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">text/plain</notes></otherMat></codeBook>