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Bouchard, Frédéric ; Heshami, Khabat ; England, Duncan ; Fickler, Robert ; Boyd, R. W. ; Englert, Berthold-Georg ; Sánchez Soto, Luis Lorenzo ; Karimi, E. | Verein Forderung Open Access Publizierens Quantenwissenschaf | 2018-12-04Quantum key distribution is on the verge of real world applications, where perfectly secure information can be distributed among multiple parties. Several quantum cryptographic protocols have been theoretically proposed and independently realize[...]texto impreso
Bent, N. ; Qassim, H. ; Tahir, A. A. ; Sych, D. ; Leuchs, G. ; Sánchez Soto, Luis Lorenzo ; Karimi, E. ; Boyd, R. W. | American Physical Society | 2015-10-15Symmetric informationally complete positive operator-valued measures provide efficient quantum state tomography in any finite dimension. In this work, we implement state tomography using symmetric informationally complete positive operator-value[...]texto impreso
Rudnicki, Lukasz ; Sánchez Soto, Luis Lorenzo ; Leuchs, Gerd ; Boyd, R. W. | Optical Society of America | 2020-08-15We establish the ultimate limits that quantum theory imposes on the accuracy attainable in optical ellipsometry. We show that the standard quantum limit, as usually reached when the incident light is in a coherent state, can be surpassed with th[...]texto impreso
Monaico, E. ; Ursaki, V. V. ; Urbieta Quiroga, Ana Irene ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier ; Boyd, R. W. ; Tiginyanu, I. M. | IOP publishing ltd | 2004-12Porous CdSe layers have been produced by anodic etching of crystalline substrates in a HCl solution. Anodization under in situ. UV illumination resulted in the formation of uniformly distributed parallel pores with a diameter of 30 nm, stretchin[...]
