Tsev > Xov xwm > Ntsiab lus

Ntau Tshaj Ib Lo Lus Los Ntawm Quantum Dots Los Quantum Rings

Jan 25, 2018

Quantum le caag tau dhau los ua ib qhov kev tshawb fawb kub kub niaj hnub no. Raws li cov lus teb ntawm cov ntaub ntawv, qhov kev siv ntawm cov khoom qub yog ib qho tseem ceeb hauv technology tshawb nrhiav quantum computer.

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Tsis ntev los no, qhov sib koom tes R & amp; D pab pawg los ntawm Suav Academy ntawm Sciences Lub koom haum ntawm microelectronics thiab cov ntawv xov xwm hluav taws xob cov lag luam hauv kev lag luam, Chongqing University of Posts thiab Telecommunications, Xiamen University tshawb nrhiav cov ntaub ntawv, muab tso rau hauv tsim tsim hluav taws xob ntau lub suab paj nruas quantum ring quantum computer theory kom zoo ntxiv qub kev pib.

Raws li tus sau, Suav Academy ntawm Sciences Lub koom haum ntawm microelectronics integrated circuit lead technology R & amp; D centre tshawb nrhiav Wu Zhenhua hais rau Tshuab Tshaj Tawm Xov Xwm Tshaj Tawm, nws hais tias: "nrog kev tsim kho ntawm ib tus lej qes quantum nplhaib quantum ntsis, uas yog ib lub tswv yim tshiab ntawm cov khoom qub uas tsim muaj los tsim kom muaj lub computer quantum raws li."


Qhov loj ntawm tus transistor yog nyob ze rau ntawm kev txwv lub cev

Hauv 40 lub xyoos dhau los, txoj kev lag luam hauv kev lag luam tau ua raws li Moore txoj cai rau txoj kev loj hlob nrawm thiab sai.

"Tiam sis nrog kev kawm ntawm cov cuab yeej technology, kev koom ua ke ntawm cov cuab yeej siv tau yooj yim dua thiab siab dua, cov xov tooj ntawm transistors ntawm tus nti nce, thiab qhov loj ntawm ib qho transistor me me thiab me dua. Lub ntsiab lus ntawm cov kev cai lij choj ntawm kev lag luam yog tsim los ntawm kev tsim cov qauv tshiab thiab cov cuab yeej cuab tam tshiab kom tau raws li qhov kev xav tau ntawm kev ua lag luam. "Wu Zhenhua piav hais tias," hauv cov ntsiab lus no, cov kws tshawb fawb thoob ntiaj teb los kawm txog cov kev cai ntawm quantum mechanics, quantum xam thiab cov ntaub ntawv tsim technology, thiaj li tsim lub tswv yim quantum computer hloov lub computer, super ultra high quantum parallel computing ability. "

"Quantum computers ncav qhov kev loj hlob ntawm kev xam phaj los ntawm kev ua haujlwm loj heev thiab kev ua haujlwm ntawm quantum phenomena Quantum superposition enables cov qub ua kom muaj ob qhov tseem ceeb ntawm 0 thiab 1 tib lub sij hawm, thiab tuaj yeem 'synchronized' Nrog txhua tus qub qub, yog ob npaug. "Lwm daim ntawv sib txuas lus sau, Dr. Liu Yu, ib nthwv ntawm kev txawj ntse txawj ntse thiab kev ua haujlwm siab, nws hais tias.

Tam sim no, Google, Microsoft, IBM, Intel thiab lwm cov tuam txhab tsim tshuab tau tsim tawm kev tshawb fawb ntawm quantum xam. Liu Yu hais tias, IBM tau thov kom tau ntse tsim tau ib qho kev sib txuas ua ke ntawm 50 feem pua; Google thawj John Martinez Google muaj 22 lub hnub qub chips ices hauv lub Kaum Hli xyoo tas los; Suav kuj nyob rau thaum lub Tsib Hlis 2017 tau tso tawm rau thawj lub ntiaj teb ua ntej cov tub ntxhais kawm hauv lub computer zoo tshaj plaws. Tus 10 hnub qub, qhov kev cia siab yuav tsum nyob ze yav tom ntej tuaj yeem yuav ua kom tiav 20 yam kev ua neej yav tom ntej.


Yuav kom ua tau raws li tus naj npawb ntawm cov "indicators" kom zoo dua

Quantum bit zoo siv feem ntau yuav tsum tau raws li ob peb yam kev cai, xws li lub cev nqaij daim tawv uas yooj yim siv, yooj yim npaj thiab pib ua haujlwm, ntev coherence lub sijhawm thiab lwm yam.

Tam sim no, qhov kev paub txog cov nqi ntawm cov nqi quantum mas yog cov khoom siv hluav taws xob, cov cuab yeej cuab, lub plhaub thev xaij, cov ntawv txiav plaub hau, cov npe saum toj kawg nkaus, cov duab thiab lwm yam. Txhua lub tshuab muaj peev xwm thiab qhov tsis zoo. Lub neej tom ntej tseem tsis tau meej. Wu Zhenhua qhia cov reporters. Raws li nws kev taw qhia, cov ntsiab lus ntawm semiconductor quantum dot muaj qhov tseem ceeb tshaj plaws hauv cov tswv yim saum toj no. Nws tuaj yeem tsim thiab khiav lag luam ntawm lub hauv paus ntawm cov tshuab qub technology uas twb muaj lawm, thiab yog ib qho yooj yim rau kev siv cov kev sib koom ua ke.

Tab sis qhov muaj zog zoo heev quantum txuam rau hauv cov ntaub ntawv quantitonductor quantum dots ua rau electron coherent lub sij hawm luv luv thiab cov hluav taws xob entanglement nyuaj. Yuav kom daws tau qhov teeb meem no, peb siv txoj kev sib txuas lus (configuration kev sib txuas), los ntawm txoj kev tshawb fawb ntawm cov xeev xws li 3 mus rau 6 electrons hauv lub tshuab luam yeeb quantum ringtone quantum nplhaib, pom muaj pes tsawg tus electrons hauv quantum ringing, thiab nrog rau sab nraud magnetic teb, fais fab teb thiab txawv qhia qhov txawv cov yam ntxwv, thiaj li mus paub tus tswj ntawm quantum xeev. Tsis tas li ntawd xwb, peb cov kev tshawb fawb kuj tsim tawm cov kev ntsuas ntawm kev ntsuas cov yeeb yam ntawm quantum rings los ntawm kev ntsuas qhov muag. "Liu Yu hais.


Yuav paub tseeb tias siv cov tshuab nruab nrab ntawm semiconductor

Nyob rau hauv txoj kev pom ntawm Wu Zhenhua thiab Liu Yu, kev tsim kho ntawm quantum cov khoom nrog multi electron semiconductor quantum rings yog ib lub tswv yim tshiab rau tus uas twb muaj ib daim ntawv cog lus electron semiconductor quantum dots. Lub chaw khuam siab tseem ceeb kom paub cov nqi quantum xam yog tias lub xeev quantum siv los xam yog qhov yooj yim los tswj, uas feem ntau hais tias kom muaj sij hawm luv luv. Cov kev tshawb fawb qhia tau hais tias muab piv nrog cov ntawv nyeem ntau npaum li cas, cov cuab yeej ntawm cov khoom siv ntawm cov ntawv nyeem yooj yim yog ib qho yooj yim los kho, thiab lub sij hawm ntawm electron coherence ntev dua, uas yuav pab kom ua tau ntau yam lag luam. Tus lej qes quantitonductor quantum dots yuav ua rau tib lub tshuab hluav taws xob, uas yog qhov nyuaj rau kev sim. Cov nplaim hluav taws xob quantum nplhaib siv cov naj npawb ntawm cov electrons thiab lub kiv xov ntawm lub xaim hluav taws xob kom paub cov khoom qub, yog li nws muaj ntau tshaj kev ua haujlwm ntawm kev ywj pheej. Tsis tas li ntawd, cov electrons raug khi rau hauv qhov chaw seem ntawm qhov ntau me me nyob hauv cov quantum dots. Cov electrons hauv ib lub voj voog quantum kuj muaj qhov kev ywj pheej nyob hauv kev sib txeeb ib seem ntawm ib qho kev sib txeeb, uas muab ib qho tshiab coding tau sab nraum tus tswj lub kiv.

Ntxiv mus, zoo ib yam li cov xov tooj ntawm cov lej quantum, cov nplhaib quantum kuj tseem yuav pom tau los ntawm kev siv cov tshuab qub uas twb muaj lawm, yog li ntawd nws tau hloov txoj kev hloov ntawm classical semiconductor nti rau quantum nti raws li cov tshuab uas twb muaj lawm. Wu Zhenhua hais.

Qhov kev tshawb fawb tshiab no yog qhov txiaj ntsig ntawm qhov kev koom tes ntawm kev lag luam thiab kev tshawb fawb. Liu Yu tau hais tias: "kev tshawb fawb tau siv cov qauv kev ua qauv zoo tshaj plaws, tiam sis cov nqi ntawm kev ua lag luam yog loj heev. Kev koom tes ntawm lub koom haum Microelectronics Institute thiab lub koom haum pab kev lag luam hauv koom haum kev lag luam koom ua ke tau ua tiav tag nrho cov kev ua tau zoo kev ua lag luam siab, kev ua lag luam, kev lag luam, kev ua lag luam, kev ua lag luam, kev ua lag luam,