Ukadaulo wa kuwala wa microwave wa Quantum

Kwantumumicrowave opticalukadaulo
Ukadaulo wa microwave opticallakhala gawo lamphamvu, kuphatikiza ubwino wa ukadaulo wa kuwala ndi microwave pakupanga zizindikiro, kulumikizana, kumva ndi zina. Komabe, machitidwe achikhalidwe a microwave photonic akukumana ndi zopinga zazikulu, makamaka pankhani ya bandwidth ndi sensitivity. Kuti athetse mavutowa, ofufuza akuyamba kufufuza quantum microwave photonics - gawo latsopano losangalatsa lomwe limaphatikiza malingaliro a ukadaulo wa quantum ndi microwave photonics.

Mfundo zazikulu za ukadaulo wa quantum microwave optical
Cholinga chachikulu cha ukadaulo wa quantum microwave optical ndikusintha mawonekedwe achikhalidwe.chowunikira zithunzimuulalo wa photon wa microwaveyokhala ndi chowunikira cha single photon chokhala ndi mphamvu zambiri. Izi zimathandiza kuti dongosololi ligwire ntchito pamlingo wotsika kwambiri wa mphamvu ya kuwala, ngakhale mpaka pamlingo wa single-photon, komanso mwina kuwonjezera bandwidth.
Machitidwe a quantum microwave photon wamba ndi awa: 1. Magwero a single-photon (monga, ma lasers ochepetsedwa mphamvu 2.Chowongolera cha Electro-opticpolemba zizindikiro za microwave/RF 3. Gawo lokonza zizindikiro za kuwala 4. Zozindikira za photon imodzi (monga zozindikira za nanowire za Superconducting) 5. Zipangizo zamagetsi zowerengera photon imodzi (TCSPC) zomwe zimadalira nthawi
Chithunzi 1 chikuwonetsa kufananiza pakati pa maulalo achikhalidwe a photon a microwave ndi maulalo a photon a microwave a quantum:

Kusiyana kwakukulu ndi kugwiritsa ntchito zida zodziwira ma photon imodzi ndi ma module a TCSPC m'malo mwa ma photodiode othamanga kwambiri. Izi zimathandiza kuzindikira zizindikiro zofooka kwambiri, pomwe tikukhulupirira kuti zikukankhira bandwidth kupitirira malire a zida zodziwira ma photon zachikhalidwe.

Ndondomeko yodziwira photon imodzi
Ndondomeko yodziwira photon imodzi ndi yofunika kwambiri pamakina a quantum microwave photon. Mfundo yogwirira ntchito ndi iyi: 1. Chizindikiro choyambitsa nthawi chomwe chimagwirizanitsidwa ndi chizindikiro choyezedwa chimatumizidwa ku module ya TCSPC. 2. Chowunikira photon imodzi chimatulutsa ma pulses angapo omwe amayimira ma photon omwe apezeka. 3. Module ya TCSPC imayesa kusiyana kwa nthawi pakati pa chizindikiro choyambitsa ndi photon iliyonse yopezeka. 4. Pambuyo pa ma loops angapo oyambitsa, histogram ya nthawi yozindikira imakhazikitsidwa. 5. Histogram ikhoza kukonzanso mawonekedwe a mafunde a chizindikiro choyambirira. Mwa masamu, zitha kuwonetsedwa kuti mwayi wozindikira photon panthawi inayake umagwirizana ndi mphamvu ya kuwala panthawiyo. Chifukwa chake, histogram ya nthawi yozindikira imatha kuyimira molondola mawonekedwe a mafunde a chizindikiro choyezedwa.

Ubwino waukulu wa ukadaulo wa quantum microwave optical
Poyerekeza ndi machitidwe achikhalidwe a microwave optical, quantum microwave photonics ili ndi zabwino zingapo zazikulu: 1. Kuzindikira kwambiri: Kuzindikira zizindikiro zofooka kwambiri mpaka kufika pamlingo wa single photon. 2. Kuwonjezeka kwa bandwidth: sikungolekeredwe ndi bandwidth ya photodetector, koma kumakhudzidwa ndi nthawi ya jitter ya single photon detector. 3. Kuletsa kusokonezedwa: Kukonzanso kwa TCSPC kumatha kusefa zizindikiro zomwe sizili zotsekedwa ku choyambitsa. 4. Phokoso lotsika: Pewani phokoso lomwe limayambitsidwa ndi kuzindikira kwachikhalidwe kwa photoelectric ndi kukulitsa.