Masana kimiyya sun ba da rahoton samuwar kwayoyin halitta-wave polaritons a cikin lattice na gani, bincike na gwaji wanda ke ba da damar yin nazari kan tsarin kimiyar kimiyya da fasaha ta tsakiya ta hanyar kwaikwaiyo kai tsaye ta amfani da atoms ultracold.
Gano Matter-Wave Polaritons Yana Bada Sabon Haske akan Fasahar Quantum na Photonic
Binciken da aka buga a cikin mujallar Nature Physics yana ba da dandalin labari don 'juyin juyi na biyu na biyu.'
Haɓaka dandamali na gwaji waɗanda ke ciyar da fannin kimiyyar ƙima da fasaha (QIST) ya zo tare da fa'idodi na musamman da ƙalubalen gama gari ga kowace fasaha mai tasowa. Masu bincike a Jami'ar Stony Brook, karkashin jagorancin Dominik Schneble, PhD, sun ba da rahoton samuwar polaritons na kwayoyin halitta a cikin lattice na gani, binciken gwaji wanda ya ba da izinin nazarin tsarin QIST na tsakiya ta hanyar kwaikwaiyo kai tsaye ta amfani da atoms ultracold. Masanan kimiyyar sun yi hasashen cewa litattafan su na quasiparticles, waɗanda ke yin kwaikwayi masu mu'amala mai ƙarfi a cikin kayayyaki da na'urori amma ke ƙetare wasu ƙalubalen da ke tattare da su, za su ci gajiyar ci gaban dandamali na QIST waɗanda ke shirin kawo sauyi na kwamfuta da fasahar sadarwa.
An yi cikakken bayanin binciken binciken a cikin wata takarda da aka buga a cikin mujallar Halitta Physics.
Binciken yana ba da haske kan mahimman kaddarorin polariton da abubuwan da suka shafi jiki da yawa, kuma yana buɗe sabbin damar yin karatu don nazarin ƙwayoyin cuta na polaritonic.
Muhimmin ƙalubale a cikin aiki tare da dandamali na QIST na tushen photon shine cewa yayin da photons na iya zama madaidaitan masu ɗaukar bayanan ƙididdiga ba su saba hulɗa da juna ba. Rashin irin wannan hulɗar kuma yana hana sarrafawar musayar bayanan ƙididdiga a tsakanin su. Masana kimiyya sun sami hanyar da za a kewaye wannan ta hanyar haɗa photons zuwa mafi nauyi a cikin kayan, don haka samar da polaritons, nau'i-nau'i irin na chimera tsakanin haske da kwayoyin halitta. Carcasions tsakanin waɗannan alamun sama sai ku sa ya yiwu don ɗaukar hoto don yin hulɗa da kyau. Wannan na iya ba da damar aiwatar da ayyukan kofa na quantum na tushen photon kuma a ƙarshe na dukkan kayan aikin QIST.
Koyaya, babban ƙalubale shine iyakancewar rayuwar waɗannan polariton na tushen photon saboda haɗakarwar su da yanayin muhalli, wanda ke haifar da ruɓewa da ɓata lokaci ba tare da kulawa ba.
Fassarar zane-zane na binciken bincike a cikin binciken polariton yana nuna kwayoyin halitta a cikin lattice na gani da ke samar da lokaci mai rufewa (hagu); kwayoyin halitta suna juya zuwa polaritons-kalaman kwayoyin halitta ta hanyar hada-hadar vacuum wanda ke yin sulhu ta hanyar microwave radiation mai wakiltar launin kore (tsakiya); polaritons suna zama ta hannu kuma suna ƙirƙirar lokaci mai ƙarfi don haɗakar iska mai ƙarfi (dama). Credit: Alfonso Lanuza/Schneble Lab/Jami'ar Stony Brook.
A cewar Schneble da abokan aiki, binciken su na polariton da aka buga ya ketare irin wannan gazawar da ke haifar da lalacewa gabaɗaya. Abubuwan photon na polariton su gaba ɗaya suna ɗauke da raƙuman kwayoyin halitta, waɗanda irin waɗannan hanyoyin lalata da ba a so ba su wanzu. Wannan fasalin yana buɗe damar yin amfani da tsarin ma'auni waɗanda ba su, ko ba tukuna ba, samun dama ga tsarin polaritonic na tushen photon.
"Ci gaban injiniyoyin ƙididdiga ya mamaye karnin da ya gabata, kuma 'juyin juyi na biyu' game da ci gaban QIST da aikace-aikacen sa yanzu yana kan ci gaba a duk faɗin duniya, gami da kamfanoni kamar IBM, Google da Amazon," in ji Schneble. Farfesa a Sashen Physics da Astronomy a Kwalejin Fasaha da Kimiyya. "Ayyukanmu yana ba da haske game da wasu mahimman tasirin injin ƙididdigewa waɗanda ke da sha'awa ga tsarin ƙididdiga na photonic na gaggawa a cikin QIST wanda ya kama daga nanophotonics na semiconductor zuwa na'urorin lantarki na kewaye."
Masu binciken Stony Brook sun gudanar da gwaje-gwajen nasu tare da wani dandali da ke nuna ultracold atoms a cikin lattice na gani, wuri mai yuwuwa mai kama da kwai da aka samu ta hanyar igiyoyin haske a tsaye. Amfani da kwazo injin na'ura featuring daban-daban Laser da iko filayen da kuma aiki a nanokelvin zafin jiki, da suka aiwatar da wani labari a cikin abin da atoms kama a cikin ragargaje "tufafi" kansu tare da girgije na injin excitations sanya daga m, evanescent kwayoyin tãguwar ruwa.
Ƙungiyar ta gano cewa, a sakamakon haka, ƙwayoyin polaritonic sun zama mafi wayar hannu. Masu binciken sun sami damar yin bincike kai tsaye cikin tsarinsu ta hanyar girgiza lattice a hankali, don haka samun damar ba da gudummawar raƙuman ruwan al'amarin da tashin hankali na atomic. Lokacin da aka bar shi kadai, al'amarin-kalaman polaritons suna tsalle ta cikin ledo, mu'amala da juna, kuma suna samar da tsayayyen matakai na kwayoyin halitta.
Schneble ya ce "Tare da gwajin mu mun yi kwaikwaiyon adadi na tsarin exciton-polariton a cikin wani sabon tsarin mulki," in ji Schneble. "Neman yin irin wannan analogue’ simulations, which in addition areanalolo' ta ma'anar cewa ana iya buga ma'aunin da suka dace cikin yardar kaina, da kansa ya zama muhimmin alkibla a cikin QIST."
Dubawa: "Samar da nau'ikan polaritons a cikin lattice na gani" na Joonhyuk Kwon, Youngshin Kim, Alfonso Lanuza da Dominik Schneble, 31 Maris 2022, Halitta Physics.
DOI: 10.1038/s41567-022-01565-4
Binciken Stony Brook ya haɗa da ɗaliban da suka kammala digiri Joonhyuk Kwon (a halin yanzu postdoc a Sandia National Laboratory), Youngshin Kim, da Alfonso Lanuza.
Gidauniyar Kimiyya ta ƙasa ce ta ɗauki nauyin aikin (ba da # NSF PHY-1912546) tare da ƙarin kuɗi daga Cibiyar SUNY don Kimiyyar Bayanai ta Quantum akan Long Island.
