Contents - Max-Planck-Institut für Physik komplexer Systeme
Contents - Max-Planck-Institut für Physik komplexer Systeme
Contents - Max-Planck-Institut für Physik komplexer Systeme
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putforwardintalksbyAdyStern(Weizmann),KirillShtengel(UCRiverside),andBerndRosenow(MPI<br />
Stuttgart). Otheraspectsofnon-AbelianquantumHallstates,includinginteractioneffects,hierarchy<br />
constructions,andquasiparticledescriptions,werediscussedintalksbyEddyArdonne(Nordita),Andrei<br />
Bernevig(Princeton),HansHansson(Nordita),GilRefael(Caltech),andNicolaRegnault(ENSParis).<br />
Theculminationoftheworkshopwasaninternationalworkshopheldinthethirdweek,whichXiao-<br />
GangWen(MIT)laterdescribedasthegrandunificationoftopologicalorder. Thedenseconference<br />
programnotonlycoveredthemostrecenttheoreticaldevelopments,butalsogainedsignificantmomentumfromoutstandingexperimentaltalks.<br />
AloisLoidl(Augsburg)overviewedspinelcompounds,Merav<br />
Dolev(Weizmann)reportedonchargefractionalizationinthev=5/2FQHstate,ChristianPfleiderer<br />
(TUMunich)discussedSkyrmionlatticesinchiralmetalsandsemi-conductors,HidenoriTakagi(UniversityofTokyo/RIKEN)reportedonIroxidesincludingtheexperimentalobservationofquantumspin<br />
liquidbehaviorinNa4Ir3O8andexperimentalindicationsforatopologicalinsulatorinNa2IrO3.Satoru<br />
Nakatsujidiscussedunconventional,spinnematicphasesinNiGa2S4,andLaurensMolenkampreported<br />
ontheexperimentalobservationofthequantumspinHalleffectinHgTequantumwellstructures.These<br />
experimentaltalkswereputintobroadercontextbysomeimpressivetheoreticaltalksgivenbymanyof<br />
theworldleadersinthefield.AparticularhighlightwasthecolloquiumofMichaelFreedman(Microsoft,<br />
StationQ)onTopology,Physics,andComplexity:Thebirthingofthequantumcomputer,whichgave<br />
anintriguingperspectiveontopologicalquantumcomputation.<br />
Theseminarandworkshopwasattendedbymorethan125scientistsincludingalargegroupofjunior<br />
scientistswhoactivelycontributedinthediscussions.Thetwopostersessionswerelargelyshapedbythe<br />
contributionsofthesejuniorattendeesandwereattendedwellpasttheoriginallyscheduleddiscussion<br />
time.<br />
Thiseventwasbilledasajoint mpipks-APCTPworkshop,anditbenefittedfromthecollaboration,as<br />
theAPCTPwasabletoidentifythemostpromisingyoungscientistsinitscatchmentarea,thereby<br />
effectivelyenhancingthegeographicreachtothebenefitofallsidesinvolved. Asaresult,theevent<br />
assembledsomeofthemostpromisingyoungresearchersfromAsia,EuropeandNorthAmerica,the<br />
threeglobalhubsofcondensedmatterphysics.<br />
Insummary,theeventmanagedtoattractanoutstandinginternationalrosterofscientistsatverydifferentstagesintheircareers,rangingfromdoctoralstudentstoaFieldsmedalist.<br />
Theconceptfora<br />
workshoponthisbuddingfieldhasbeenconceivedinthesummerof2007,itstopicalityfurtherincreased<br />
overtime,anditbenefittedgreatlyfromdevelopmentsintheinterveningtwoyears:theprogramended<br />
upprovidingaplatformforanumberofnewandimportantdevelopmentsintherapidlyevolvingfieldof<br />
topologicalphasesofmatter.<br />
DynamicsandStatisticsofWeatherandClimate,FocusWorkshop<br />
Scientificcoordinators:J.Bröcker,K.Fraedrich,H.Kantz<br />
Mainfocus: Thisshortfocusworkshopdealtwiththeaccuracyofpredictionsinweatherandclimate.<br />
NumericalweatherpredictionsandclimatesimulationsrelyondetailedmodelsoftheEarth’satmosphere<br />
(andalsooceancurrentsinthecaseofclimate), whichareinitializedusingobservationaldataand<br />
subsequentlyintegratednumerically. Allaspectsofthisapproachinevitablycontaininaccuraciesand<br />
errors.Onthisworkshop,thedifferenterrorsourcesandtheirconsequenceswerediscussed,alongwith<br />
possiblewaystoreducetheseerrorsoratleasttoassesstheirmagnitude. Ingeneralterms,erroneous<br />
representationoftheunderlyingphysicsandtheinitialconditionleadtowrongmodeldynamicsand<br />
deviationsbetweenthestatisticsofpredictionandreality.<br />
Seniorparticipants: Theparticipantsincludedleadingexpertsworkinginthefieldsofweatherforecasting,climatemodelling,andpredictability,suchasM.Ghil,L.A.Smith,M.Latif,O.Talagrand,C.<br />
Penland,P.J.vanLeeuwen,KevinJudd,andErichBecker<br />
Youngscientists: 10outofthe30talksoftheworkshopwerepresentedbyyoungscientists,typically<br />
seniorPhDstudentsorpostdocs.The20posterswerepresentedbyyoungerparticipants.Theyhadthe<br />
chancetogiveaverybriefoverviewoftheirposter(around2minutes)inaspecialsession,whichturned<br />
outtobeverysuccessful.<br />
WorkshopReports 123
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