偏振光子的大氣傳輸及糾纏濃縮.pdf

1、中國(guó)海洋大學(xué)碩士學(xué)位論文偏振光子的大氣傳輸及糾纏濃縮姓名：咸良申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：凝聚態(tài)物理指導(dǎo)教師：顧永建20080601TransmiSSioninatmosphereandentangIementconcentrationofpoIarizedphotonsAbstractQuantuminformation，acombinationofquantummechanicsandinformationscience，isanews

2、ciencethathasdevelopedrapidlyinrecent20yearsAsanimportantpartofquantuminformation，quantumcommunicationemploysquantumstatesasthecarriersofinformation，andtransmitsandprocessesinformationontheprincipleofquantummechanicsSinc

3、etheestablishmentoftheglobalquantumnetworkviasatellitehasbecomeahottopic，moreandmoreattentionhasbeenpaidtotheeffectofatmosphericchannelonphotonsasinformationcarriersAsakeyresourceinquantuminformation，quantumentanglementh

4、asbeenwidelyusedinquantumcommunicationHowever，thedegreeofentanglementwilldecreaseinatmosphericchannelEntanglementconcentrationcanbeusedtOovercomethisdifficultyTosolvetheseproblems，thisthesismainlycarriesoutthefollowingtw

5、oresearches：1)theoreticalresearchontheeffectsoftheatmosphereonpolarizedphotonsinfreespacequantumkeydistribution；2)opticalrealizationofdeterministicentanglementconcentrationofpolarizedphotonsInthefirstresearch，WecalTiesou

6、tthesimulationofthetransmissionofpolarizedphotonsinatmospheremainlyadoptingMonteCarlomethodFirstly，weestablishthemodelofthetransmissionofpolarizedphotonsinatmosphereaccordingtotheMonteCarlomethodandMiescatteringtheoryThe

7、n，byprogrammingwegetthechangesofthenonsymmetricfactorg，scatteringphasefunction，distributionofthefreedistanceL，statisticalresultsofthescatteringangles，thecoordinatedistributionofthescatteredphotonsandthechangesoftheStokes

8、vectorsofpolarizedphotons，allofwhichlayagoodfoundationforfurtherin—depthstudyInthesecondresearch，anexperimentalschemehasbeenproposedbywhichoneCanrealizethedeterministicentanglementconcentrationofpolarizedphotonsInthissch