Kushandiswa kwetekinoroji ye quantum microwave photonics

Kushandiswa kwequantumtekinoroji ye microwave photonics

Kuonekwa kwechiratidzo chisina kusimba
Imwe yenzira dzinonyanya kuvimbisa dzekushandisa tekinoroji ye quantum microwave photonics ndeyekuona zviratidzo zve microwave/RF zvisina simba zvakanyanya. Nekushandisa single photon detection, masisitimu aya anonyanya kunzwisisika kupfuura nzira dzechinyakare. Semuenzaniso, vaongorori vakaratidza sisitimu ye quantum microwave photonic inogona kuona zviratidzo zvakaderera se -112.8 dBm pasina electronic amplification. Kunzwa uku kwakanyanya kunoita kuti ive yakakodzera kushandiswa senge deep space communications.

Mifananidzo ye microwavekugadzirisa zviratidzo
Quantum microwave photonics inoshandisawo mabasa ekugadzirisa masaini ane bandwidth yakakura akadai sekuchinja-chinja uye kusefa. Nekushandisa chinhu chinopararira che optical uye kugadzirisa wavelength yechiedza, vaongorori vakaratidza chokwadi chekuti RF phase inochinja kusvika ku8 GHz RF filtering bandwidths kusvika ku8 GHz. Chinokosha ndechekuti, maficha aya ese anowanikwa uchishandisa 3 GHz electronics, izvo zvinoratidza kuti mashandiro anodarika miganhu yebandwidth yechinyakare.

Kuongororwa kwenguva kusingawanzoitiki munharaunda
Imwe nzira inonakidza inokonzereswa ne quantum entanglement ndeyekuyera ma frequency asiri emunharaunda nenguva. Iyi nzira inogona kuratidza spectrum ye continuous-wave pumped single-photon source kune time domain iri kure. Sisitimu iyi inoshandisa entangled photon pairs umo beam rimwe rinodarika nepa spectral filter uye rimwe rinopfuura nepa dispersive element. Nekuda kwe frequency inotsamira pa entangled photons, spectral filtering mode inoyerwa kwete panzvimbo iyoyo kune time domain.
Mufananidzo 1 unoratidza pfungwa iyi:

Nzira iyi inogona kuyera chiedza nenzira inochinjika pasina kushandisa zvakananga chiedza chakayerwa.

Kunzwa kwakamanikidzwa
Quantummicrowave opticaltekinoroji inopawo nzira itsva yekunzwisisa zviratidzo zvebroadband zvakamanikidzwa. Vachishandisa kusarongeka kuripo mukuona kwequantum, vaongorori vakaratidza sisitimu yekuona yakamanikidzwa yequantum inokwanisa kudzoka.10 GHz RFspectra. Sisitimu iyi inochinja chiratidzo cheRF kuenda kumamiriro epolarization e coherent photon. Kuona kwephoton imwe chete kunozopa matrix yekuyera isina kurongeka yechisikigo yecompressed sensing. Nenzira iyi, chiratidzo chebroadband chinogona kudzoserwa paYarnyquist sampling rate.

Kugoverwa kwekiyi yeQuantum
Pamusoro pekuvandudza mashandisirwo echinyakare e microwave photonic, tekinoroji ye quantum inogonawo kuvandudza masisitimu ekukurukurirana kwe quantum akadai se quantum key distribution (QKD). Vaongorori vakaratidza subcarrier multiplex quantum key distribution (SCM-QKD) nekuwedzera multiplexing microwave photons subcarrier pane quantum key distribution (QKD) system. Izvi zvinobvumira ma quantum keys akawanda akazvimiririra kuti atumirwe pamusoro pehurefu hwechiedza, nokudaro zvichiwedzera kushanda zvakanaka kwe spectral.
Mufananidzo 2 unoratidza pfungwa nemigumisiro yekuyedza yesystem ye SCM-QKD ine maviri-carrier:

Kunyange zvazvo tekinoroji ye quantum microwave photonics ichivimbisa, kuchine mamwe matambudziko:
1. Kugona kushanda panguva chaiyo: Sisitimu iripo inoda nguva yakawanda yekuunganidza kuti igadzirezve chiratidzo.
2. Kuoma kubata nezviratidzo zvinoputika/zvisingadzokororwi: Hunhu hwehuwandu hwekugadzirisa hunoita kuti zvisashande kune zviratidzo zvisingadzokororwi.
3. Chinja kuita waveform chaiyo ye microwave: Mamwe matanho anodiwa kuti ushandure histogram yakagadzirwazve kuita waveform inoshanda.
4. Hunhu hwemudziyo: Kudzidzwa kwakawanda kwemaitiro ezvishandiso zve quantum ne microwave photonic mumasisitimu akabatanidzwa kunodiwa.
5. Kubatanidzwa: Masisitimu mazhinji nhasi anoshandisa zvikamu zvakakura zvakasiyana.

Kuti tigadzirise matambudziko aya uye tifambise mberi, pane nzira dzakawanda dzekutsvaga dziri kuoneka:
1. Gadzira nzira itsva dzekugadzirisa masaini panguva chaiyo uye kuona kamwe chete.
2. Ongorora mashandisirwo matsva anoshandisa kungwara kwakanyanya, senge kuyerwa kwe liquid microsphere.
3. Tevedzerai kuti ma photon nema electron akabatanidzwa aonekwe kuti muderedze kukura nekuomarara.
4. Dzidzai nezvekudyidzana kwakawedzerwa kwechiedza-zvinhu mumasekete e photonic e quantum microwave akabatanidzwa.
5. Sanganisa tekinoroji ye quantum microwave photon nedzimwe tekinoroji dziri kubuda dze quantum.