Asayansi amafotokoza kupangidwa kwa ma polaritons a matter-wave mu optical lattice, kutulukira koyeserera komwe kumathandizira kuti paradigm yapakati pa sayansi ndi ukadaulo wapakatikati kudzera mu kayeseleledwe kachulukidwe kachindunji pogwiritsa ntchito maatomu a ultracold.
Kupezeka kwa Matter-Wave Polaritons Kumaunikira Kuwala Kwatsopano pa Photonic Quantum Technologies
Kafukufuku wofalitsidwa m'magazini yotchedwa Nature Physics amapereka njira yatsopano ya 'second quantum revolution.'
Kukula kwa nsanja zoyeserera zomwe zimapititsa patsogolo gawo la sayansi ndiukadaulo wa quantum (QIST) kumabwera ndi maubwino ndi zovuta zomwe zimachitika paukadaulo uliwonse womwe ukubwera. Ofufuza ku Stony Brook University, motsogozedwa ndi Dominik Schneble, PhD, amafotokoza kupangika kwa ma polaritons a matter-wave mu optical lattice, kupezedwa koyesera komwe kumalola maphunziro apakati pa QIST paradigm kudzera kuyerekezera kochulukira kwachulukidwe pogwiritsa ntchito maatomu a ultracold. Asayansi akuwonetsa kuti ma quasiparticles awo, omwe amatsanzira ma photon omwe amalumikizana mwamphamvu pazida ndi zida koma amapewa zovuta zina zomwe adakumana nazo, athandiza kupititsa patsogolo kwa nsanja za QIST zomwe zatsala pang'ono kusintha ukadaulo wamakompyuta ndi kulumikizana.
Zofukufukuzo zafotokozedwa mwatsatanetsatane mu pepala lofalitsidwa mu magazini Nature Physics.
Kafukufukuyu akuwunikira zinthu zofunika kwambiri za polariton ndi zochitika zathupi zambiri, ndipo amatsegula mwayi wamaphunziro a polaritonic quantum matter.
Vuto lofunikira pogwira ntchito ndi nsanja za QIST zozikidwa pa photon ndikuti ngakhale ma photon amatha kukhala onyamulira zidziwitso za kuchuluka komwe nthawi zambiri samalumikizana wina ndi mnzake. Kupanda kuyanjana kotereku kumalepheretsanso kusinthanitsa kolamuliridwa kwa chidziwitso cha kuchuluka pakati pawo. Asayansi apeza njira yozungulira izi mwa kulumikiza ma photon ku zinthu zolemetsa kwambiri, motero kupanga ma polaritons, osakanizidwa ngati chimera pakati pa kuwala ndi zinthu. Kugundana pakati pa ma quasiparticles olemerawa kumapangitsa kuti ma photon azilumikizana bwino. Izi zitha kupangitsa kukhazikitsidwa kwa magwiridwe antchito a chipata cha quantum potengera ma photon ndipo pamapeto pake maziko a QIST onse.
Komabe, vuto lalikulu ndi moyo wocheperako wa ma polaritons opangidwa ndi photon awa chifukwa cha kugwirizana kwawo ndi chilengedwe, zomwe zimabweretsa kuwonongeka kosalamulirika komanso kusagwirizana.
Kufotokozera mwaluso zomwe zapezedwa mu kafukufuku wa polariton zikuwonetsa maatomu omwe ali mugalasi la kuwala kupanga gawo lotsekereza (kumanzere); maatomu osandulika kukhala ma polaritoni a matter wave kudzera pa vacuum coupling yolumikizidwa ndi cheza cha microwave choimiridwa ndi mtundu wobiriwira (pakati); ma polaritons kukhala oyendayenda ndikupanga gawo lamadzimadzi ochulukirapo pakulumikizana kolimba kwa vacuum (kumanja). Ngongole: Alfonso Lanuza/Schneble Lab/Stony Brook University.
Malinga ndi Schneble ndi anzawo, kafukufuku wawo wofalitsidwa wa polariton amalepheretsa malire oterowo chifukwa cha kuwola kodzidzimutsa kotheratu. Mbali za photon za polaritons zawo zimanyamulidwa kwathunthu ndi mafunde a atomiki, omwe njira zowola zosafunikira zotere kulibe. Izi zimatsegula mwayi wopeza maulamuliro omwe salipo, kapena omwe sanapezekepo muzinthu za photon-based polaritonic systems.
"Kukula kwa quantum mechanics kwalamulira zaka zana zapitazi, ndipo 'kusintha kwachiwiri kwachulukidwe' pakukula kwa QIST ndikugwiritsa ntchito kwake tsopano kukuchitika padziko lonse lapansi, kuphatikiza m'mabungwe monga IBM, Google ndi Amazon," akutero Schneble, Pulofesa mu Dipatimenti ya Fizikisi ndi Astronomy ku College of Arts ndi Sciences. "Ntchito yathu ikuwonetsa zina mwamakina ofunikira omwe ali ndi chidwi pamakina omwe akubwera ku QIST kuyambira semiconductor nanophotonics kupita ku circuit quantum electrodynamics."
Ofufuza a Stony Brook adachita zoyeserera zawo ndi nsanja yomwe ili ndi maatomu amtundu wa ultracold mu lattice ya kuwala, malo owoneka ngati dzira-crate opangidwa ndi mafunde oyima a kuwala. Pogwiritsa ntchito chida chodzipatulira cha vacuum chokhala ndi ma lasers osiyanasiyana ndi magawo owongolera ndikugwira ntchito pa kutentha kwa nanokelvin, adagwiritsa ntchito momwe maatomu omwe adatsekeredwa mu "lattice" "avala" okha ndi mitambo yotulutsa vacuum yopangidwa ndi mafunde osalimba, osasunthika.
Gululo lidapeza kuti, chifukwa chake, tinthu tating'onoting'ono ta polaritonic timakhala tikuyenda kwambiri. Ofufuzawo adatha kufufuza mwachindunji mawonekedwe awo amkati mwa kugwedeza pang'onopang'ono latisi, motero amapeza zopereka za mafunde a nkhani ndi chisangalalo cha atomiki lattice. Akasiyidwa okha, ma polaritons a matter-wave amadumphira mu latisi, amalumikizana wina ndi mzake, ndikupanga magawo okhazikika a quasiparticle matter.
"Ndi kuyesa kwathu tidachita kuyerekezera kwamtundu wa exciton-polariton system muulamuliro watsopano," akufotokoza Schneble. “Kufuna kuchita zimenezo analogue’ simulations, which in addition areanalogi` m'lingaliro lakuti magawo oyenerera amatha kuyimba momasuka, pawokha ndi njira yofunikira mkati mwa QIST."
Reference: "Kupanga ma polaritons a matter-wave mu lattice ya kuwala" lolemba Joonhyuk Kwon, Youngshin Kim, Alfonso Lanuza ndi Dominik Schneble, 31 Marichi 2022, Nature Physics.
DOI: 10.1038/s41567-022-01565-4
Kafukufuku wa Stony Brook anaphatikizapo ophunzira omaliza maphunziro a Joonhyuk Kwon (omwe pano ndi postdoc ku Sandia National Laboratory), Youngshin Kim, ndi Alfonso Lanuza.
Ntchitoyi idathandizidwa ndi National Science Foundation (perekani # NSF PHY-1912546) ndi ndalama zowonjezera kuchokera ku SUNY Center for Quantum Information Science ku Long Island.
