mesoscopic quantum states of light;
nonclassical photon-number correlations;
lossy transmission channels;
SEPARABILITY CRITERION;
PHOTON;
TELEPORTATION;
BEAMS;
D O I:
10.3390/app10249094
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In the past twenty years many experiments have demonstrated that quantum states of light can be used for secure data transfer, despite the presence of many noise sources. In this paper we investigate, both theoretically and experimentally, the role played by a statistically-distributed asymmetric amount of loss in the degradation of nonclassical photon-number correlations between the two parties of multimode twin-beam states in the mesoscopic intensity regime. To be as close as possible to realistic scenarios, we consider two different statistical distributions of such a loss, a Gaussian distribution and a log-normal one. The results achieved in the two cases show to what extent the involved parameters, both those connected to loss and those describing the employed states of light, preserve nonclassicality.
机构:
Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Ndagano, Bienvenu
Perez-Garcia, Benjamin
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Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Photon & Math Opt Grp, Tecnol Monterrey, Monterrey 64849, MexicoUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Perez-Garcia, Benjamin
Roux, Filippus S.
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Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Natl Metrol Inst South Africa, Meiring Naude Rd, Pretoria, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Roux, Filippus S.
McLaren, Melanie
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Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
McLaren, Melanie
Rosales-Guzman, Carmelo
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机构:
Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Rosales-Guzman, Carmelo
Zhang, Yingwen
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机构:
CSIR Natl Laser Ctr, POB 395, ZA-0001 Pretoria, South Africa
Univ Ottawa, Ctr Res Photon, Dept Phys, Ottawa, ON K1N 6N5, CanadaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Zhang, Yingwen
Mouane, Othmane
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机构:
Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Mouane, Othmane
Hernandez-Aranda, Raul I.
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机构:
Photon & Math Opt Grp, Tecnol Monterrey, Monterrey 64849, MexicoUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Hernandez-Aranda, Raul I.
Konrad, Thomas
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机构:
Univ KwaZulu Natal, Sch Chem & Phys, Private Bag X54001, ZA-4000 Durban, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa
Konrad, Thomas
Forbes, Andrew
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机构:
Univ Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South AfricaUniv Witwatersrand, Sch Phys, Private Bag 3, ZA-2050 Johannesburg, South Africa