Engineering Core Engineering Core 63Quantuminformationtheoryisaninformationtheorybasedonquantummechanics.Quantumteleportationandaquantumcomputerarefamousandimportantapplicationsofquantuminformationtheory.Sincequantumstatesaredescribedbyoperatorsandmatriceswithsomeproperties,itisimportanttostudyoperatortheoryandtheoryofoperatoralgebra.Ourgroupstudiesquantuminformationtheorymathematically.HiromichiOhnoIntheKinugawaLaboratory,weareconductingtheoreticalcalculationsonbinarystellarsystems.Morethanhalfofthestarsintheuniversearebinary,andbinarysystemsarecloselyrelatedtovariousinterestingastronomicalphenomena,suchasgamma-raybursts,themergingofbinaryblackholesresultingingravitationalwaves,andsoon.Clarifyingthefateofbinarysystemsisthemainthemeofourlaboratoryinunravelingthemysteriesoftheseastronomicalphenomena.Inparticular,binarysystemsformedintheearlyuniversehaveattractedattentionintermsofgravitationalwavesandobservationsoftheearlyuniverse.Tomoya KinugawaRSAisacryptosystembasedonthedifficultyoffindingaprimefactorization.Butifwehaveaquantumcomputer,wecanfinditeasilyandthuswecancrackacode.Quantumteleportationisanewmeansofcommunication.Whenweusetoquantumteleportation,eavesdrop.Quantuminformationtheorywilldevelopourcommunicationtechnology.Graduatedstudentsfromourlaboratoryworkinvariousgovernmentemployees,teachers,etc.Oneofouraimsistoimprovestudents’thinkingskillsandproblem-solvingabilities.Findingsomethingthatgenuinelyinterestsyouandwholeheartedlypursuingitisnotsomethingthatcanbedonefrequentlyinlife.Istronglyencourageyoutodiscoveryourpassionandengageinresearchorstudiesrelatedtoitwhileyouareastudent.Bydoingso,youcandevelopbothyourcriticalthinkingskillsandyourabilitytotakeaction,whichwillgreatlybenefityouasaworkingprofessionalinthefuture.Throughresearch,youcandevelopmanyskills.Theseskillsarenotonlyapplicabletoresearchbutcanalsobeappliedtovariousfields.Manyprofessionalshaveacquiredtheseskillsthroughresearchandaremakingsignificantcontributionsinsociety.Iencourageallofyoutofollowintheirfootstepsandleveragetheskillsyouacquirethroughresearchtothriveinyourchosenpaths.impossibleisitfieldsasengineers,logicalDaily life in our laboratory. Students study and prepare for their seminar.A scene of a seminar. Students and teachers discuss mathematical problems.Oneexampleofbinarystarevolution:Initially,astarburnsthroughhydrogenfusion,liketheSun.Asthehydrogendepletes,itevolvesintodifferentstages,suchasaredgiant.Ultimately,itundergoesasupernovaexplosion,leavingneutronstarsorblackholes.Throughouttheevolutionprocessofbinarysystems,variousastronomicalphenomenaoccur,includingsupernovaexplosions,X-raybinaries,andtheemissionofgravitationalwaves.In the FutureAfter GraduationIn the FutureAfter GraduationProfessorPh.D., Information science, Tohoku University, March 2005.Professor at Shinshu University, since 2022.AssociateProfessorResearchInterests:AstrophysicsKeywords:StellerevolutionGravitationalWaveHighenergyAstrophysicsOperator Theory and Quantum Information TheoryExploring the destiny of binary stars in the universe
元のページ ../index.html#64