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智科眼: 双语看懂新科研
量子物理学 1114
A(A) team(小组) of(of) researchers(研究人员) with(with) members(成员) affiliated(附属) with(with) several() institutions(机构) in(in) the U(U) .(.) S.(S.) and() Japan(日本) reports(报告) that(that) connectivity(连接性) is(is) more() important(重要) than(than) thought(思想) when(when) building(构建) specialized(专门) optimizing(优化) machines(机器).(.) In(In) their(他们) paper(论文) published(发表) in(in) the journal(杂志) Science(科学) Advances(进步),(,) the group(小组) describes(描述了) how(如何) they(他们) tested(测试) connectivity(连接) importance(重要性) on(on) two(两种) kinds(种类) of(of) specialized() optimizing(优化) machines(机器).(.)
As(As) traditional(传统) computers(计算机) approach(接近) the limits(极限) of(of) Moore(摩尔定律)'s('s) Law(法律),(,) scientists(科学家们) have(have) turned(转身) their(它们) attention(注意力) to(to) alternatives(替代).(.) To(To) that(that) end(结束),(,) a lot of(许多) work(工作) has(has) been(been) done(DONE) to(to) determine(确定) if(如果) a(a) truly(真正) useful(有用) quantum(量子) computer(计算机) will(will) live(生活) up(up) to(to) expectations(预期).(.) Researchers(研究人员) have(have) also() suggested(建议) other(其他) types(类型) of(of) technology(技术) for(for) building(构建) specialized() optimizing(优化) machines(机器)()one(一个) such(这样) example(例子) is(is) the Ising(伊辛) machine(机器) being() pioneered(开创) at(at) Stanford(斯坦福大学) University(大学).(.) It() is(is) a(a) type() of(of) computer(计算机) that(that) has(has) been(been) designed(设计) specifically(特异性) to(to) run(运行) what(what) is(is) known as(被称为) the Traveling Salesman problem(流动推销员问题),(,) an(一个) exercise(练习) in(in) which(which) a(a) traveling(旅行) salesman(推销员) must(必须) visit(访问) each(每个) of(of) his(他的) clients(客户) and() return(返回) home(回家) between(between) each() trip() in(in) the most() efficient(有效) way(方式).(.) Clearly(清楚),(,) if(如果) there(那里) are(are) only(只有) a(a) few(几个) cities(城市),(,) the traveling(旅游) salesmen(推销员) problem(问题) is(is) trivial(平凡)()however(然而),(,) when(when) the number(数量) of(of) cities(城市) climbs(),(,) things(事情) grow(增长) difficult(困难).(.) The Ising(伊辛) machine(机器) uses(使用) optical() and(并且) electrical() processors(处理器) to(to) solve(解决) the problem(问题) and() does() so(全然) much more() efficiently(有效) than(than) conventional(传统) computers(计算机).(.) In(In) this(这项) new(新的) effort(努力),(,) the researchers(研究人员) found(发现) that(that) engineers(工程师) working on(致力于) specialized() optimizing(优化) machines(机器) might(可能) be(be) overlooking(忽略) connectivity(连接性).(.)
To(To) illustrate(说明) how much(多少价钱) of(of) a(a) difference(差异) connectivity(连接) can(可以) make(进行) in(in) machine design(机器设计),(,) the researchers(研究人员) pitted(麻点) a(a) quantum(量子) annealer(annealer) built() by(by) D-(D-)Wave() Systems(系统) against(反对) an(一个) Ising(伊辛) machine(机器).(.) They(它们) gave() both(both) machines(机器) the same(相同) tasks(任务) and() measured(测量) how long(多少) it() took(took) them(它们) to(to) solve(解决) them(它们),(,) noting(并指出) that(that) one(之一) of(of) the biggest(最大) differences(差异) between(between) them(他们) is(is) the degree(程度) of(of) connectivity(连接) involved(涉及) in(in) their(它们) design(设计).(.) The Ising(伊辛) machine design(机器设计),(,) they(他们) note(指出),(,) exhibits(展示) far() more() efficient(高效) connectivity(连接性).(.)
The researchers(研究人员) report(报告) that(that) for(for) applications(应用) requiring(需要) high() connectivity(连接性),(,) the Ising(伊辛) machine(机器) outperformed(优于) the D-(D-)Wave() machine(机器)—in(—in) some(某些) cases(情况),(,) dramatically(急剧).(.) On(On) one(一个) of(of) the most() complicated(复杂) problems(问题),(,) it() beat(节拍) the quantum(量子) annealer(annealer) by(by) a(a) factor(因素) of(of) 10(10) million(百万).(.) For(For) sparsely(稀疏) connected(连接) problems(问题),(,) the reverse(相反) was(was) true(真正),(,) with(with) the quantum(量子) annealer(annealer) clearly(清楚) outpacing(超过了) the Ising(伊辛) machine(机器).(.)
The researchers(研究人员) suggest(建议) their(他们) results(结果) highlight(亮点) the importance(重要性) of(of) addressing(解决) connectivity(连接) issues(问题) when(when) designing(设计) specialized() optimizing(优化) machines(机器).(.)

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