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Contents - Max-Planck-Institut für Physik komplexer Systeme

Contents - Max-Planck-Institut für Physik komplexer Systeme

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mpipks colloquium given by S. Ospelkaus on the subject of ultra cold polar molecules, and three<br />

postersessionswithmorethan60contributions,createdalivelyandfairlyintenseworkingatmosphere.<br />

Almostalloftheinvitedspeakersexplicitlytookupthequovadis?theme,addressingfutureoptions<br />

andtasks. Itbecamequiteevidentthatthereisnotjustonesingledominantdirectionwhichthefield<br />

isgoingtotake,butratherthereexistseveralstrandswhicharelikelytobeexploredsimultaneously,<br />

stemmingfromrecentresultswhichwerediscussedindetailduringthetalks. Keytopicsincluded<br />

newlyemergingpossibilitiesforimagingsingleatomsinopticallattices,theexplorationofnonstandard<br />

latticegeometriesandofnewtrappingdevices,theobservationandexplanationofdynamicaleffects<br />

involvingsolitonsordeliberatelyperturbedcondensates,andthespecificbehaviourofaunitaryFermi<br />

gas. Withrespecttotheuseofultracoldatomsasquantumsimulators,amajorchallengenowliesin<br />

therealizationofevenlowertemperatures:Thepresentrecordof350Picokelvin(heldbeW.Ketterles<br />

group at MIT) still is by a factor of 2 or 3 higher than the temperatures required for emulating,<br />

e.g.,theXXZ-modelwithbosonsinopticallattices. Eachofthethreeeveningpostersessionsledto<br />

longandlivelydiscussionsamongtheparticipants. Lastbutnotleast,boththeexcursiontoMeissen<br />

andtheconferencedinnerprovidedwelcomerelaxation. Theconceptofthisquovadismeetingof<br />

bringingtogetherleadingexpertsfromseveralsubfields,andtoincludeasignificantfractionofPh.D.students,wasquitewellreceived;thebenefitsofstrengtheningthetiesbetweenthediversedirections<br />

ofcurrentcold-atomsresearchwereemphasizedseveraltimes. Wearegratefultothe<strong>Max</strong><strong>Planck</strong><br />

<strong>Institut</strong>eforthePhysicsofComplexSystemsforthegeneroussupportwhichhasmadethiseventpossible.<br />

EmergentQuantumStatesinComplexCorrelatedMatter,FocusWorkshop<br />

Scientificcoordinators:E.Bascones,A.Chubukov,I.Eremin<br />

Theworkshoptookplaceatthe mpipksinDresdenfromAugust23toAugust27,2010,andfocusedon<br />

anumberofimportantopenproblemsinthefieldofstronglycorrelatedelectronicsystems. Itbrought<br />

togethercuttingedgeresearchersintheareaofemergentquantumstatesincorrelatedelectronsystems.<br />

ThescopeoftheworkshopspannedalargenumberoftopicsincludingthephysicsofFe-pnictides,<br />

cuprates,frustratedmagnets,andtopologicalinsulators. Inaddition,thephysicsofthenewstatesof<br />

mattersuchasnematicand/ormetamagneticphases,andtheinterplaybetweenspin,charge,andorbital<br />

degreeoffreedomhavealsobeenaddressed. Duringtheworkshopanumberofphenomenologicaland<br />

microscopictheoriesofthesesystemshavebeendiscussedininformalbutseriousmanner.<br />

Over75participantsfromEurope,USA,Canada,andJapantookpartinthemeeting. Theprogram<br />

included40oralpresentations,bothinvitedandcontributed,aswellastwopostersessions. Theinterchangeofpointsofviewbetweenparticipantswithdistinctscientificinterestsgaverisetoahighly<br />

stimulatingatmosphere.Duringtheworkshop,anumberofnewandexcitingresultshavebeenpresented<br />

by,e.g.,LouisTailleferon“Fermisurfacereconstructionandquantumcriticalityincupratesuperconductors”,SubirSachdevonthephasediagramofthehightemperaturesuperconductors,KazuhiroKuroki<br />

“Anionheightasakeyparameterinthesuperconductivityofpnictidesandcuprates”,AshvinVishwanath<br />

on“TopologicalinsulatorsCorrelationeffectsandtopologicalfieldtheories”,MauriceRiceon“Akspace<br />

theoryforthecupratesuperconductors”,Yong-BaekKimon“Spinliquidandtopologicalinsulatorinfrustratedmagnets”.Manyother,especiallyyoung,participantspresentedtalksofhighqualityandshowed<br />

newandinterestingresults. Thetalks,discussions,andpostersatEQUAM10demonstratedthatthe<br />

fieldofcorrelatedelectronsisdevelopingrapidlyandhasgreatprospects.<br />

TwomainresultsoftheWorkshopare(i)afocusedexchangeofideasontherecentexperimentaland<br />

theoreticaldevelopmentsinthefieldofhigh-temperaturesuperconductivityandtheoriginofnon-Fermiliquidphysicsinstronglycorrelatedelectronsystems,and(ii)aninvolvementofyoungscientistsinthe<br />

discussionwhichhasstimulatednewresearchcollaborations.<br />

Wewouldliketothank mpipksforitshospitalityandexcellentinfrastructureprovidedtotheparticipants<br />

oftheworkshop. Wealsowouldliketothanktheteamofsecretariesand,inparticular,MandyLochar<br />

fortheirkindassistanceandsupportofthismeeting.<br />

ComplexityinPeriodicallyStructuredSystems,Workshop<br />

Scientificcoordinators:C.Denz,G.-L.Oppo<br />

Aimsoftheworkshop:Spontaneousgenerationofperiodicandaperiodicstructuresinspatiallyextended<br />

nonlinearsystemshasbeenacenterpieceofresearchincomplexsystemsforalongtime. Nowadays,<br />

138 DetailsandData

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