{"id":6203,"date":"2026-10-19T09:48:37","date_gmt":"2026-10-19T09:48:37","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-edlisfraedi-aruna-rajagopal\/"},"modified":"2026-10-19T09:48:37","modified_gmt":"2026-10-19T09:48:37","slug":"doktorsvorn-i-edlisfraedi-aruna-rajagopal","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-edlisfraedi-aruna-rajagopal\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed e\u00f0lisfr\u00e6\u00f0i – Aruna Rajagopal"},"content":{"rendered":"
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V\u00f6rninni ver\u00f0ur streymt<\/a><\/p>\n

Doktorsefni:<\/strong>\u00a0Aruna Rajagopal<\/p>\n

Heiti ritger\u00f0ar:<\/strong>\u00a0V\u00f6kvaaflfr\u00e6\u00f0i utan varmajafnv\u00e6gis fr\u00e1 sj\u00f3narh\u00f3li samhverfu (Out of equilibrium hydrodynamics with and without boost symmetry)<\/p>\n

Andm\u00e6lendur:<\/strong>
<\/strong>Dr. Giuseppe Policastro, pr\u00f3fessor vi\u00f0 Laboratoire de Physique Th\u00e9orique, Ecole Normale Superieure, Par\u00eds
Dr. Koenraad Schalm, pr\u00f3fessor vi\u00f0 Instituut Lorentz, Universiteit Leiden, Hollandi<\/p>\n

Lei\u00f0beinandi:<\/strong>\u00a0Dr. L\u00e1rus Thorlacius, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands<\/p>\n

Einnig \u00ed doktorsnefnd:<\/strong>
<\/strong>Dr. Valentina Giangreco M. Puletti, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands
Dr. \u00de\u00f3r\u00f0ur J\u00f3nsson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands
Dr. Jelle Hartong, lektor vi\u00f0 University of Edinburgh, Skotlandi<\/p>\n

Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0Dr. Einar \u00d6rn Sveinbj\u00f6rnsson, pr\u00f3fessor og deildarforseti Raunv\u00edsindadeildar H\u00e1sk\u00f3la \u00cdslands<\/p>\n

\u00c1grip
<\/strong>Ritger\u00f0in fjallar um b\u00e6\u00f0i afst\u00e6\u00f0ilega og s\u00edgilda v\u00f6kvaaflfr\u00e6\u00f0i fr\u00e1 sj\u00f3narh\u00f3li samhverfu. Byrja\u00f0 er \u00e1 a\u00f0 kanna afst\u00e6\u00f0ilega segulstraumfr\u00e6\u00f0i (e. magnetohydrodynamics), sem l\u00fdsir v\u00edxlverkun rafhla\u00f0ins straumefnis vi\u00f0 rafsegulsvi\u00f0 Maxwells, og sko\u00f0a\u00f0 tilfelli\u00f0 \u00feegar efnis\u00fe\u00e9ttleiki og hitastig eru n\u00f3gu l\u00e1g til a\u00f0 kerfi\u00f0 s\u00e9 segulmi\u00f0a\u00f0 (e. force free electrodynamics). \u00de\u00e1 er \u00fer\u00fdstingur vegna segulsvi\u00f0sins r\u00e1\u00f0andi mi\u00f0a\u00f0 vi\u00f0 \u00fer\u00fdstinginn fr\u00e1 straumefninu. \u00cd \u00feessu markgildi m\u00e1 setja kenninguna fram \u00e1 n\u00fdst\u00e1rlegan h\u00e1tt, \u00fear sem svonefnd formsamhverfa (e. higher form symmetry) er \u00ed a\u00f0alhlutverki, og bera saman vi\u00f0 eldri fr\u00e6\u00f0i. Me\u00f0 \u00fev\u00ed a\u00f0 sty\u00f0jast vi\u00f0 \u00feyngdarfr\u00e6\u00f0ilega heilmyndun (e. holographic duality) m\u00e1 reikna \u00fat dempun rafsvi\u00f0s \u00ed straumefninu, b\u00e6\u00f0i sams\u00ed\u00f0a og \u00fevert \u00e1 segulsvi\u00f0i\u00f0, og sta\u00f0festa a\u00f0 engar langl\u00edfar \u00f6rvanir s\u00e9u til sta\u00f0ar \u00ed segulmi\u00f0u\u00f0u kerfi og \u00fev\u00ed \u00f3h\u00e6tt a\u00f0 treysta ni\u00f0urst\u00f6\u00f0um v\u00f6kvaaflfr\u00e6\u00f0innar.
S\u00ed\u00f0ari hluti ritger\u00f0arinnar fjallar um varmafr\u00e6\u00f0i og v\u00f6kvaaflfr\u00e6\u00f0i fyrir sterkt v\u00edxlverkandi skammtakerfi me\u00f0 Lifshitz-sk\u00f6lun. Kanna\u00f0ur er orkuflutningur utan varmajafnv\u00e6gis \u00ed sl\u00edkum kerfum \u00ed kj\u00f6lfar \u00feess a\u00f0 varmageymar vi\u00f0 mismunandi hitastig eru leiddir saman. Kerfi\u00f0 leitar \u00ed \u00e1stand me\u00f0 st\u00f6\u00f0ugu orkustreymi \u00ed gegnum r\u00fdmi sem umlykur samskeytin milli varmageymanna. \u00deetta r\u00fdmi vex me\u00f0 t\u00edmanum og er afmarka\u00f0 af tveimur bylgjum \u00e1 \u00fatlei\u00f0, s\u00edn \u00ed hvora \u00e1tt fr\u00e1 samskeytunum. Ni\u00f0ursta\u00f0an er \u00ed g\u00f3\u00f0u samr\u00e6mi vi\u00f0 eldri \u00fatreikninga fyrir afst\u00e6\u00f0ilega v\u00f6kvaaflfr\u00e6\u00f0i. \u00deyngdarfr\u00e6\u00f0ileg heilmyndun gefur einnig inns\u00fdn \u00ed \u00fdmsa varmafr\u00e6\u00f0ilega eiginleika skammtakerfa me\u00f0 Lifshitz-sk\u00f6lun og \u00ed ritger\u00f0inni er stu\u00f0st vi\u00f0 \u00fatreikninga \u00ed \u00e1kve\u00f0nu \u00feyngdarfr\u00e6\u00f0il\u00edkani, sem gefist hefur vel \u00ed fyrri ranns\u00f3knum \u00e1 \u00feessu svi\u00f0i.<\/p>\n

Um doktorsefni\u00f0
<\/strong>Aruna Rajagopal er f\u00e6dd \u00ed N\u00fdju Delhi \u00ed Indlandi. H\u00fan lauk B.Sc. pr\u00f3fi \u00ed e\u00f0lisfr\u00e6\u00f0i fr\u00e1 St. Stephen College (University of Delhi) \u00e1ri\u00f0 2011 og M.Sc. gr\u00e1\u00f0u \u00ed e\u00f0lisfr\u00e6\u00f0i fr\u00e1 Indian Institute of Technology Madras \u00e1ri\u00f0 2013. Eftir \u00fea\u00f0 flutti h\u00fan til Kanada \u00fear sem h\u00fan t\u00f3k meistarapr\u00f3f \u00ed kennilegri e\u00f0lisfr\u00e6\u00f0i vi\u00f0 Perimeter Institute \u00ed Ontario vori\u00f0 2014. A\u00f0 pr\u00f3fi loknu vann h\u00fan um skei\u00f0 a\u00f0 ranns\u00f3knum \u00ed l\u00edfr\u00e6nni e\u00f0lisfr\u00e6\u00f0i (e. theoretical biophysics) vi\u00f0 University of Waterloo en flutti s\u00ed\u00f0an aftur til Indlands og starfa\u00f0i vi\u00f0 ranns\u00f3knir \u00ed kennilegri \u00f6reindafr\u00e6\u00f0i vi\u00f0 Centre for High Energy Physics \u00ed Bangalore. H\u00fan h\u00f3f doktorsn\u00e1m vi\u00f0 H\u00e1sk\u00f3la \u00cdslands \u00ed lok \u00e1rs 2016.\u00a0<\/strong><\/p>\n<\/div><\/div>","protected":false},"featured_media":4967,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2021-05-21T13:00:00+00:00","_phd_date_end":"2021-05-21T15:00:00+00:00","_phd_location":"Askja Stofa 132","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"V\u00f6kvaaflfr\u00e6\u00f0i utan varmajafnv\u00e6gis fr\u00e1 sj\u00f3narh\u00f3li samhverfu (Out of equilibrium hydrodynamics with and without boost symmetry)","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_edlisfraedi_aruna_rajagopal","_phd_source_node_id":"374867","_phd_source_type":"vidburdir","_phd_member_id":726,"footnotes":""},"phd_school":[101,93],"phd_discipline":[105],"class_list":["post-6203","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-raunvisindadeild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-edlisfraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6203\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/4967"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6203"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6203"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}