Ukusetyenziswa kwe-quantumitekhnoloji yefotonic ye-microwave
Ukufunyanwa komqondiso obuthathaka
Esinye sezona zicelo zithembisayo zobuchwephesha be-quantum microwave photonics kukubona iimpawu ezibuthathaka kakhulu zemicrowave/RF. Ngokusebenzisa ukubonwa kwefotoni enye, ezi nkqubo zinovakalelo kakhulu kuneendlela zemveli. Ngokomzekelo, abaphandi baye babonisa inkqubo ye-quantum microwave photonic ekwazi ukubona iimpawu eziphantsi njenge -112.8 dBm ngaphandle kokwandiswa kwe-elektroniki. Olu buntununtunu obuphezulu buyenza ilungele usetyenziso olunjengonxibelelwano lwendawo enzulu.
Iifotoni zeMicrowaveukusetyenzwa komqondiso
IQuantum microwave photonics iphinda iphumeze imisebenzi yokwenziwa komqondiso we-bandwidth ephezulu efana nokutshintsha kwesigaba kunye nokucoca. Ngokusebenzisa i-dispersive optical element kunye nokulungelelanisa ubude bokukhanya, abaphandi babonise inyani yokuba isigaba se-RF sitshintsha ukuya kuthi ga kwi-8 GHz RF yokucoca i-bandwidths ukuya kwi-8 GHz. Okubalulekileyo, ezi mpawu zonke ziphunyeziwe kusetyenziswa 3 GHz electronics, nto leyo ebonisa ukuba ukusebenza ngaphaya kwemida yemveli bandwidth.
Izihlandlo ezingezizo zasekuhlaleni ukuya kwimephu yexesha
Esinye isakhono esinomdla esiziswe kukubanjwa kwe-quantum kukwenza imephu yezihlandlo ezingezizo ezendawo ukuya kwixesha. Obu buchwephesha bunokwenza imephu yesspectrum yomthombo wefotoni enye ukuya kwindawo ekude kwindawo ekude. Inkqubo isebenzisa izibini zephoton ezifakwe kwi-photon apho enye i-boam idlula kwi-filter ye-spectral kwaye enye idlula kwi-dispersive element. Ngenxa yokuxhomekeka rhoqo kweefotoni ezibambeneyo, imowudi yohluzo lwembonakalo yohluzo lwenziwe imephu engeyiyo yendawo kwindawo yexesha.
Umzobo 1 ubonisa le ngcamango:
Le ndlela inokufezekisa umlinganiselo we-spectral oguquguqukayo ngaphandle kokulawula ngokuthe ngqo umthombo wokukhanya olinganisiweyo.
Ukuziva kucinezelekile
Quantummicrowave opticalitekhnoloji ikwabonelela ngendlela entsha yokuziva ngoxinzelelo lwemiqondiso yebroadband. Besebenzisa i-randomness engokwemvelo ekubhaqweni kwe-quantum, abaphandi baye babonisa inkqubo ye-quantum ecinezelekileyo yokuziva ekwaziyo ukuphinda ibuyele.10 GHz RFspectra. Inkqubo imodareyitha umqondiso weRF kwimo yepolarization yefoton ehambelanayo. Ukufunyaniswa kwefotoni enye emva koko kubonelela ngendalo engaqhelekanga yomlinganiselo wematriksi yemvakalelo ecinezelweyo. Ngale ndlela, isignali ye-broadband inokubuyiselwa kwireyithi yesampulu yaseYarnyquist.
Ukuhanjiswa kweqhosha leQuantum
Ukongeza ekwandiseni usetyenziso lwefotonic ye-microwave yemveli, itekhnoloji ye-quantum inokuphucula iinkqubo zonxibelelwano lwe-quantum ezifana nokuhanjiswa kweqhosha le-quantum (QKD). Abaphandi babonise i-subcarrier multiplex quantum key distribution (SCM-QKD) ngokuphindaphinda i-microwave photons subcarrier kwi-quantum key distribution (QKD) inkqubo. Oku kuvumela izitshixo ezininzi ezizimeleyo ze-quantum ukuba zihanjiswe ngaphezu kobude obunye bokukhanya, ngokwandisa ukusebenza kakuhle kwembonakalo.
Umzobo wesi-2 ubonisa ingcamango kunye neziphumo zovavanyo lwenkqubo ye-SCM-QKD ye-dual-carrier:
Nangona itekhnoloji ye-quantum microwave photonics iyathembisa, kusekho imingeni ethile:
1. Ubuncinci bexesha langempela: Inkqubo yangoku idinga ixesha elininzi lokuqokelela ukuvuselela umqondiso.
2. Ubunzima bokujongana nokugqabhuka / imiqondiso enye: Ubume bezibalo bokwakhiwa kwakhona bunciphisa ukusetyenziswa kwayo kwiimpawu ezingaphindi.
3. Guqula ibe yi-microwave waveform yokwenyani: Amanyathelo awongezelelweyo ayafuneka ukuguqula i-histogram eyakhiwe ngokutsha ibe yi-wave wave esebenzisekayo.
4. Iimpawu zesixhobo: Uphononongo olongezelelweyo lokuziphatha kwezixhobo ze-quantum kunye ne-microwave photonic kwiinkqubo ezidibeneyo ziyafuneka.
5. Ukudityaniswa: Uninzi lweesistim namhlanje zisebenzisa i-bulky discrete components.
Ukujongana nale mingeni kunye nokuqhubela phambili intsimi, uninzi lwezalathiso zophando ezithembisayo ziyavela:
1. Ukuphuhlisa iindlela ezintsha zokucwangcisa uphawu lwexesha langempela kunye nokufunyanwa okukodwa.
2. Phonononga usetyenziso olutsha olusebenzisa ubuntununtunu obuphezulu, obufana nomlinganiselo we-liquid microsphere.
3. Phumelela ukufezekiswa kweefotoni ezidibeneyo kunye nee-electron ukunciphisa ubungakanani kunye nobunzima.
4. Funda intsebenziswano eyongeziweyo yokukhanya kwiisekethe ezidibeneyo ze-quantum microwave photonic.
5. Dibanisa iteknoloji yequantum microwave photon kunye nobunye ubugcisa obuvelayo bequantum.
Ixesha lokuposa: Sep-02-2024