<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article SYSTEM "http://jats.nlm.nih.gov/archiving/1.2/JATS-archivearticle1.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="1.2" article-type="research-article" xml:lang="en"><?properties open_access?><front><journal-meta><journal-id journal-id-type="publisher-id">13130</journal-id><journal-id journal-id-type="doi">10.1007/13130.1029-8479</journal-id><journal-title-group><journal-title>Journal of High Energy Physics</journal-title><abbrev-journal-title abbrev-type="publisher">J. High Energ. Phys.</abbrev-journal-title></journal-title-group><issn pub-type="epub">1029-8479</issn><publisher><publisher-name>Springer Berlin Heidelberg</publisher-name><publisher-loc>Berlin/Heidelberg</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">JHEP02(2023)152</article-id><article-id pub-id-type="manuscript">20246</article-id><article-id pub-id-type="arxiv">2211.01385</article-id><article-id pub-id-type="doi">10.1007/JHEP02(2023)152</article-id><article-categories><subj-group subj-group-type="heading"><subject>Regular Article - Theoretical Physics</subject></subj-group></article-categories><title-group><article-title xml:lang="en">A deformed IR: a new IR fixed point for four-dimensional holographic theories</article-title></title-group><contrib-group><contrib contrib-type="author" id="Au1"><name><surname>Horowitz</surname><given-names>Gary T.</given-names></name><xref ref-type="aff" rid="Aff1">1</xref></contrib><contrib contrib-type="author" corresp="yes" id="Au2"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0001-9483-5946</contrib-id><name><surname>Kolanowski</surname><given-names>Maciej</given-names></name><xref ref-type="aff" rid="Aff2">2</xref><xref ref-type="corresp" rid="IDJHEP022023152_cor2">b</xref></contrib><contrib contrib-type="author" id="Au3"><name><surname>Santos</surname><given-names>Jorge E.</given-names></name><xref ref-type="aff" rid="Aff3">3</xref></contrib><aff id="Aff1"><label>1</label><institution-wrap><institution-id institution-id-type="GRID">grid.133342.4</institution-id><institution-id institution-id-type="ISNI">0000 0004 1936 9676</institution-id><institution content-type="org-division">Department of Physics</institution><institution content-type="org-name">University of California at Santa Barbara</institution></institution-wrap><addr-line content-type="postcode">93106</addr-line><addr-line content-type="city">Santa Barbara</addr-line><addr-line content-type="state">CA</addr-line><country country="US">U.S.A.</country></aff><aff id="Aff2"><label>2</label><institution-wrap><institution-id institution-id-type="GRID">grid.12847.38</institution-id><institution-id institution-id-type="ISNI">0000 0004 1937 1290</institution-id><institution content-type="org-division">Institute of Theoretical Physics, Faculty of Physics</institution><institution content-type="org-name">University of Warsaw</institution></institution-wrap><addr-line content-type="street">Pasteura 5</addr-line><addr-line content-type="postcode">02-093</addr-line><addr-line content-type="city">Warsaw</addr-line><country country="PL">Poland</country></aff><aff id="Aff3"><label>3</label><institution-wrap><institution-id institution-id-type="GRID">grid.5335.0</institution-id><institution-id institution-id-type="ISNI">0000000121885934</institution-id><institution content-type="org-division">Department of Applied Mathematics and Theoretical Physics</institution><institution content-type="org-name">University of Cambridge</institution></institution-wrap><addr-line content-type="street">Wilberforce Road</addr-line><addr-line content-type="postcode">CB3 0WA</addr-line><addr-line content-type="city">Cambridge</addr-line><country country="GB">U.K.</country></aff></contrib-group><author-notes><corresp id="IDJHEP022023152_cor2"><label>b</label><email>maciej.kolanowski@fuw.edu.pl</email></corresp></author-notes><pub-date date-type="pub" publication-format="electronic"><day>15</day><month>2</month><year>2023</year></pub-date><pub-date date-type="collection" publication-format="electronic"><month>2</month><year>2023</year></pub-date><volume>2023</volume><issue seq="152">2</issue><elocation-id>152</elocation-id><history><date date-type="registration"><day>15</day><month>2</month><year>2023</year></date><date date-type="received"><day>19</day><month>11</month><year>2022</year></date><date date-type="accepted"><day>31</day><month>1</month><year>2023</year></date><date date-type="online"><day>15</day><month>2</month><year>2023</year></date></history><permissions><copyright-statement>© The Author(s) 2023</copyright-statement><copyright-year>2023</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0/"><license-p><bold>Open Access</bold>. This article is distributed under the terms of the Creative Commons Attribution License (<ext-link xlink:href="http://creativecommons.org/licenses/by/4.0/" ext-link-type="url">CC-BY 4.0</ext-link>), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.</license-p></license></permissions><abstract id="Abs1" xml:lang="en"><title>A<sc>bstract</sc></title><p id="Par1">In holography, the IR behavior of a quantum system at nonzero density is described by the near horizon geometry of an extremal charged black hole. It is commonly believed that for systems on <italic>S</italic><sup>3</sup>, this near horizon geometry is AdS<sub>2</sub> × <italic>S</italic><sup>3</sup>. We show that this is not the case: generic static, nonspherical perturbations of AdS<sub>2</sub> × <italic>S</italic><sup>3</sup> blow up at the horizon, showing that it is not a stable IR fixed point. We then construct a new near horizon geometry which is invariant under only SO(3) (and not SO(4)) symmetry and show that it is stable to SO(3)-preserving perturbations (but not in general). We also show that an open set of nonextremal, SO(3)-invariant charged black holes develop this new near horizon geometry in the limit <italic>T</italic> → 0. Our new IR geometry still has AdS<sub>2</sub> symmetry, but it is warped over a deformed sphere. We also construct many other near horizon geometries, including some with no rotational symmetries, but expect them all to be unstable IR fixed points.</p></abstract><kwd-group xml:lang="en"><title>K<sc>eywords</sc></title><kwd>AdS-CFT Correspondence</kwd><kwd>Black Holes</kwd></kwd-group><custom-meta-group><custom-meta><meta-name>publisher-imprint-name</meta-name><meta-value>Springer</meta-value></custom-meta><custom-meta><meta-name>volume-issue-count</meta-name><meta-value>12</meta-value></custom-meta><custom-meta><meta-name>issue-article-count</meta-name><meta-value>257</meta-value></custom-meta><custom-meta><meta-name>issue-toc-levels</meta-name><meta-value>0</meta-value></custom-meta><custom-meta><meta-name>issue-pricelist-year</meta-name><meta-value>2023</meta-value></custom-meta><custom-meta><meta-name>issue-copyright-holder</meta-name><meta-value>SISSA, Trieste, Italy</meta-value></custom-meta><custom-meta><meta-name>issue-copyright-year</meta-name><meta-value>2021</meta-value></custom-meta><custom-meta><meta-name>article-contains-esm</meta-name><meta-value>No</meta-value></custom-meta><custom-meta><meta-name>article-numbering-style</meta-name><meta-value>ContentOnly</meta-value></custom-meta><custom-meta><meta-name>article-registration-date-year</meta-name><meta-value>2023</meta-value></custom-meta><custom-meta><meta-name>article-registration-date-month</meta-name><meta-value>2</meta-value></custom-meta><custom-meta><meta-name>article-registration-date-day</meta-name><meta-value>15</meta-value></custom-meta><custom-meta><meta-name>article-toc-levels</meta-name><meta-value>0</meta-value></custom-meta><custom-meta><meta-name>toc-levels</meta-name><meta-value>0</meta-value></custom-meta><custom-meta><meta-name>volume-type</meta-name><meta-value>Regular</meta-value></custom-meta><custom-meta><meta-name>journal-product</meta-name><meta-value>ArchiveJournal</meta-value></custom-meta><custom-meta><meta-name>numbering-style</meta-name><meta-value>Unnumbered</meta-value></custom-meta><custom-meta><meta-name>article-grants-type</meta-name><meta-value>OpenChoice</meta-value></custom-meta><custom-meta><meta-name>metadata-grant</meta-name><meta-value>OpenAccess</meta-value></custom-meta><custom-meta><meta-name>abstract-grant</meta-name><meta-value>OpenAccess</meta-value></custom-meta><custom-meta><meta-name>bodypdf-grant</meta-name><meta-value>OpenAccess</meta-value></custom-meta><custom-meta><meta-name>bodyhtml-grant</meta-name><meta-value>OpenAccess</meta-value></custom-meta><custom-meta><meta-name>bibliography-grant</meta-name><meta-value>OpenAccess</meta-value></custom-meta><custom-meta><meta-name>esm-grant</meta-name><meta-value>OpenAccess</meta-value></custom-meta><custom-meta><meta-name>online-first</meta-name><meta-value>false</meta-value></custom-meta><custom-meta><meta-name>pdf-file-reference</meta-name><meta-value>BodyRef/PDF/13130_2023_Article_20246.pdf</meta-value></custom-meta><custom-meta><meta-name>pdf-type</meta-name><meta-value>Typeset</meta-value></custom-meta><custom-meta><meta-name>target-type</meta-name><meta-value>OnlinePDF</meta-value></custom-meta><custom-meta><meta-name>issue-online-date-year</meta-name><meta-value>2023</meta-value></custom-meta><custom-meta><meta-name>issue-online-date-month</meta-name><meta-value>7</meta-value></custom-meta><custom-meta><meta-name>issue-online-date-day</meta-name><meta-value>10</meta-value></custom-meta><custom-meta><meta-name>issue-type</meta-name><meta-value>Regular</meta-value></custom-meta><custom-meta><meta-name>article-type</meta-name><meta-value>OriginalPaper</meta-value></custom-meta><custom-meta><meta-name>journal-subject-primary</meta-name><meta-value>Physics</meta-value></custom-meta><custom-meta><meta-name>journal-subject-secondary</meta-name><meta-value>Elementary Particles, Quantum Field Theory</meta-value></custom-meta><custom-meta><meta-name>journal-subject-secondary</meta-name><meta-value>Quantum Field Theories, String Theory</meta-value></custom-meta><custom-meta><meta-name>journal-subject-secondary</meta-name><meta-value>Classical and Quantum Gravitation, Relativity Theory</meta-value></custom-meta><custom-meta><meta-name>journal-subject-secondary</meta-name><meta-value>Quantum Physics</meta-value></custom-meta><custom-meta><meta-name>journal-subject-collection</meta-name><meta-value>Physics and Astronomy</meta-value></custom-meta><custom-meta><meta-name>open-access</meta-name><meta-value>true</meta-value></custom-meta></custom-meta-group></article-meta><notes notes-type="Misc"><p>A<sc>r</sc>X<sc>iv e</sc>P<sc>rint</sc>: <ext-link xlink:href="https://arxiv.org/abs/2211.01385" ext-link-type="url">2211.01385</ext-link></p></notes></front><back><ref-list id="Bib1"><title>References</title><ref-list><ref id="CR1"><label>[1]</label><mixed-citation publication-type="other">S.A. 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