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ID:44495314
大小:36.00 KB
页数:4页
时间:2019-10-22
《英语科普:量子计算机升级》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、Withinthelastseveralyears,considerableprogresshasbeenmadeindevelopingaquantumcomputer,whichholdsthepromiseofsolvingproblemsalotmoreefficientlylthanaclassicalcomputer.Physicists2arenowabletorealizethebasicbuildingblocks,thequantumbits(qubits)inalaboratory,controlthemanduse
2、themforsimplecomputations.Forpracticalapplication,aparticularclassofquantumcomputers,theso-calledadiabaticquantumcomputer,hasrecentlygeneratedalotofinterestamongresearchersandindustry.Itisdesignedtosolvereal-worldoptimization3problemsconventionalcomputersarenotabletotackl
3、e・Allcurrentapproachesforadiabaticquantumcomputationfacethesamechallenge:Theproblemisencodedintheinteractionbetweenqubits;toencodeageneric4problem,anall-to-allconnectivityisnecessary,butthelocalityofthephysicalquantumbitslimitstheavailableinteractions."TheprogrammingIangu
4、ageofthesesystemsistheindividualinteractionbetweeneachphysicalqubit.Thepossibleinput5isdetermined6bythehardware.Thismeansthatalltheseapproachesfaceafundamentalchallengewhentryingtobuildafully7programmablequantumcomputer,"explainsWolfgangLechnerfromtheInstituteforQuantumOp
5、ticsandQuantumInformation(IQOQI)attheAustrianAcademyofSciencesinInnsbruck.TheoreticalphysicistsWolfangLechner,PhilippHaukeandPeterZollerhavenowproposedacompletelynewapproach.Thetrio,workingattheUniversityofInnsbruckandtheIQOQI,suggestovercomingthechallengesbydetachingthel
6、ogicalqubitfromthephysicalimplementations・Eachphysicalqubitcorrespondstoonepairoflogicalqubitsandcanbetuned9bylocalfields.Thesecouldbeelectricalfieldswhendealing10withatomsandionsormagneticfieldsinsuperconductingqubits."Anygenericoptimizationproblemcanbefullyprogrammedvia
7、thefields,"explainsco-authorPhilippHaukefromtheInstituteforTheoreticalPhysicsattheUniversityofInnsbruck,Austria."Byusingthisapproachwearenotonlyavoidingthelimitationsposedbythehardwarebutwealsomakethetechnological11implementationscalable."词汇解析:1efficientlyadv.高效率地,有能力地参考例
8、句:Theworkeroilsthemachinetooperateitmoreefficiently.!人给机器上油以使机器运转更有效。Localauthoritieshavetolearn
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