Cov kws tshawb fawb tshaj tawm txog kev tsim cov teeb meem-yoj polaritons hauv cov kab hluav taws xob kho qhov muag, qhov kev sim tshawb pom uas ua rau muaj kev tshawb fawb ntawm lub hauv paus quantum science thiab technology paradigm los ntawm quantum simulation ncaj qha siv ultracold atoms.
Discovery of Matter-Wave Polaritons Sheds New Light on Photonic Quantum Technologies
Kev tshawb fawb luam tawm nyob rau hauv phau ntawv journal Nature Physics muab lub platform tshiab rau 'thib ob quantum kiv puag ncig.'
Txoj kev loj hlob ntawm kev sim platforms uas ua rau lub teb ntawm quantum science thiab technology (QIST) los nrog cov txheej txheem tshwj xeeb ntawm qhov zoo thiab cov teeb meem uas tshwm sim rau txhua qhov kev siv tshuab. Cov kws tshawb fawb ntawm Stony Brook University, coj los ntawm Dominik Schneble, PhD, qhia txog kev tsim cov teeb meem-yoj polaritons nyob rau hauv ib qho chaw kho qhov muag, ib qho kev sim nrhiav pom uas tso cai rau kev tshawb fawb ntawm lub hauv paus QIST paradigm los ntawm ncaj qha quantum simulation siv ultracold atoms. Cov kws tshawb fawb xav tias lawv cov quasiparticles tshiab, uas ua rau muaj kev cuam tshuam zoo ntawm photons hauv cov ntaub ntawv thiab cov khoom siv tab sis hla qee qhov kev cov nyom, yuav muaj txiaj ntsig rau kev txhim kho ntxiv ntawm QIST platforms uas tau npaj los hloov pauv kev suav thiab kev sib txuas lus thev naus laus zis.
Cov kev tshawb fawb pom tau hais meej nyob rau hauv ib daim ntawv luam tawm hauv phau ntawv journal Ntuj Physics.
Txoj kev tshawb no tso lub teeb ntawm lub hauv paus polariton cov khoom thiab muaj feem xyuam nrog ntau lub cev tshwm sim, thiab nws qhib qhov muaj peev xwm tshiab rau kev kawm ntawm polaritonic quantum teeb meem.
Ib qho kev sib tw tseem ceeb hauv kev ua haujlwm nrog photon-raws li QIST platforms yog tias thaum photons tuaj yeem yog cov neeg nqa khoom zoo tshaj plaws ntawm cov ntaub ntawv quantum lawv tsis nquag cuam tshuam nrog ib leeg. Qhov tsis muaj kev cuam tshuam zoo li no tseem cuam tshuam kev tswj kev sib pauv ntawm cov ntaub ntawv quantum ntawm lawv. Cov kws tshawb fawb tau pom ib txoj hauv kev los ntawm kev sib txuas cov photons kom hnyav dua hauv cov ntaub ntawv, yog li tsim cov polaritons, chimera zoo li hybrids ntawm lub teeb thiab teeb meem. Kev sib tsoo ntawm cov quasiparticles hnyav no ua rau nws ua tau rau cov photons kom muaj kev cuam tshuam zoo. Qhov no tuaj yeem ua rau kev siv ntawm photon-based quantum gate operations thiab thaum kawg ntawm tag nrho QIST infrastructure.
Txawm li cas los xij, qhov kev sib tw tseem ceeb yog lub neej txwv ntawm cov photon-based polaritons vim lawv cov hluav taws xob sib txuas rau ib puag ncig, uas ua rau tsis muaj kev tswj xyuas tsis tu ncua kev lwj thiab decoherence.
Ib qho kev ua yeeb yam ntawm cov kev tshawb fawb tshawb pom nyob rau hauv txoj kev tshawb fawb polariton qhia cov atoms nyob rau hauv ib qho kev kho qhov muag lattice ua ib theem insulating (sab laug); atoms tig mus rau hauv cov teeb meem-yoj polaritons ntawm lub tshuab nqus tsev coupling mediated los ntawm microwave hluav taws xob sawv cev los ntawm cov xim ntsuab (center); polaritons dhau los ua lub xov tooj ntawm tes thiab tsim cov theem superfluid rau lub tshuab nqus tsev sib txuas (txoj cai). Credit: Alfonso Lanuza / Schneble Lab / Stony Brook University.
Raws li Schneble thiab cov npoj yaig, lawv cov kev tshawb fawb polariton tau tshaj tawm hla cov kev txwv no tshwm sim los ntawm kev lwj tag. Cov duab photon ntawm lawv cov polaritons tag nrho yog nqa los ntawm cov teeb meem atomic waves, uas tsis muaj cov txheej txheem tsis zoo li no. Cov yam ntxwv no qhib kev nkag mus rau cov kev tswj hwm uas tsis yog, lossis tseem tsis tau, nkag mus tau hauv photon-based polaritonic systems.
"Txoj kev loj hlob ntawm quantum mechanics tau yeej ib puas xyoo dhau los, thiab 'thib ob quantum kiv puag ncig' rau kev txhim kho QIST thiab nws cov ntawv thov tam sim no tau zoo nyob thoob plaws ntiaj teb, suav nrog cov tuam txhab xws li IBM, Google thiab Amazon," hais tias Schneble, ib tug xibfwb hauv Department of Physics thiab Astronomy hauv College of Arts thiab Sciences. "Peb txoj haujlwm qhia txog qee qhov tseem ceeb ntawm quantum mechanical teebmeem uas muaj kev txaus siab rau cov tshuab photonic quantum hauv QIST xws li semiconductor nanophotonics mus rau circuit quantum electrodynamics."
Cov kws tshawb fawb Stony Brook tau ua lawv cov kev sim nrog lub platform uas muaj cov atoms ultracold nyob rau hauv ib qho chaw kho qhov muag, lub qe-crate-zoo li cov toj roob hauv pes tsim los ntawm sawv nthwv dej ntawm lub teeb. Siv lub tshuab nqus tsev vacuum featuring ntau yam lasers thiab tswj teb thiab kev khiav hauj lwm ntawm nanokelvin kub, lawv siv ib tug scenario nyob rau hauv uas cov atoms daig nyob rau hauv lub lattice "hnav ris tsho" lawv tus kheej nrog huab ntawm lub tshuab nqus tsev excitations ua los ntawm fragile, evanescent teeb meem nthwv dej.
Pab neeg no pom tias, vim li ntawd, cov khoom polaritonic tau dhau los ua ntau lub xov tooj ntawm tes. Cov kws tshawb fawb tau tuaj yeem soj ntsuam ncaj qha rau lawv cov qauv sab hauv los ntawm maj mam co lub lattice, yog li nkag mus rau qhov kev koom tes ntawm cov teeb meem nthwv dej thiab atomic lattice excitation. Thaum sab laug ib leeg, qhov teeb meem-yoj polaritons plam los ntawm lub lattice, cuam tshuam nrog ib leeg, thiab tsim cov theem ruaj khov ntawm cov teeb meem quasiparticle.
"Nrog peb qhov kev sim peb tau ua ib qho kev sim quantum ntawm ib qho exciton-polariton system hauv kev tswj hwm tshiab," piav qhia Schneble. “Kev nrhiav kom ua li ntawd analogue’ simulations, which in addition areanalog' hauv kev nkag siab tias cov kev txwv tsis sib xws tuaj yeem raug hu dawb hauv, los ntawm nws tus kheej ua ib qho kev taw qhia tseem ceeb hauv QIST. "
Siv: "Kev tsim cov teeb meem-yoj polaritons nyob rau hauv ib qho chaw kho qhov muag" los ntawm Joonhyuk Kwon, Youngshin Kim, Alfonso Lanuza thiab Dominik Schneble, 31 Lub Peb Hlis 2022, Ntuj Physics.
DOI: 10.1038/s41567-022-01565-4
Kev tshawb fawb Stony Brook suav nrog cov tub ntxhais kawm tiav Joonhyuk Kwon (tam sim no postdoc ntawm Sandia National Laboratory), Youngshin Kim, thiab Alfonso Lanuza.
Txoj haujlwm tau txais nyiaj los ntawm National Science Foundation (nyiaj pab # NSF PHY-1912546) nrog cov nyiaj ntxiv los ntawm SUNY Center rau Quantum Information Science ntawm Long Island.
