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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
?ehá?ek, Jaroslav ; Hradil, Zdenek ; Teo, Yong Siah ; Sánchez Soto, Luis Lorenzo ; Ng, Hui Khoon ; Chai, Jing Hao ; Englert, Berthold-Georg | American Physical Society | 2015-11Measuring incomplete sets of mutually unbiased bases constitutes a sensible approach to the tomography of high-dimensional quantum systems. The unbiased nature of these bases optimizes the uncertainty hypervolume. However, imposing unbiasedness [...]texto impreso
Hradil, Zden?k ; ?ehá?ek, Jaroslav ; Sánchez Soto, Luis Lorenzo ; Englert, Berthold-Georg | Optical Society of America | 2019-11-14In recent proposals for achieving optical super-resolution, variants of the quantum Fisher information (QFI) quantify the attainable precision. We find that claims about a strong enhancement of the resolution resulting from coherence effects are[...]
