Entropic Bounds as Uncertainty Measure of Unitary Operators

Autor: Rinie N. M. Nasir, Jesni Shamsul Shaari, Stefano Mancini

Publikováno v: Physics Letters A

We reformulate the notion of uncertainty of pairs of unitary operators within the context of guessing games and derive an entropic uncertainty relation for a pair of such operators. We show how distinguishable operators are compatible while maximal i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7631f14d638cf18ca337399ad888ca6a
http://arxiv.org/abs/2011.11832

Advances in quantum cryptography

Autor: Ulrik L. Andersen, Mario Berta, Leonardo Banchi, Tobias Gehring, Paolo Villoresi, Jason Pereira, Cosmo Lupo, Jesni Shamsul Shaari, Dirk Englund, Darius Bunandar, Stefano Pirandola, Roger Colbeck, Marco Tomamichel, Giuseppe Vallone, Petros Wallden, Mohsen Razavi, Vladyslav C. Usenko, Carlo Ottaviani

Publikováno v: Pirandola, S, Andersen, U L, Banchi, L, Berta, M, Bunandar, D, Colbeck, R, Englund, D, Gehring, T, Lupo, C, Ottaviani, C, Pereira, J, Razavi, M, Shaari, J S, Tomamichel, M, Usenko, V C, Vallone, G, Villoresi, P & Wallden, P 2020, ' Advances in Quantum Cryptography ', Advances in Optics and Photonics, vol. 12, no. 4, pp. 1012-1097 . https://doi.org/10.1364/AOP.361502
arXiv
Pirandola, S, Andersen, U L, Banchi, L, Berta, M, Bunandar, D, Colbeck, R, Englund, D, Gehring, T, Lupo, C, Ottaviani, C, Pereira, J, Razavi, M, Shaari, J S, Tomamiche, M, Usenko, V C, Vallone, G, Villoresi, P & Wallden, P 2020, ' Advances in Quantum Cryptography ', Advances in Optics and Photonics, vol. 12, no. 4, pp. 1012-1236 . https://doi.org/10.1364/AOP.361502

Quantum cryptography is arguably the fastest growing area in quantum information science. Novel theoretical protocols are designed on a regular basis, security proofs are constantly improving, and experiments are gradually moving from proof-of-princi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d137d1471a7c8e8b0b091a508784e746
http://hdl.handle.net/11577/3391755

Entropic Bounds For Unitary Testers and Mutually Unbiased Unitary Bases

Autor: Stefano Mancini, Jesni Shamsul Shaari

Publikováno v: Annals of Physics

We define the entropic bounds, i.e minimal uncertainty for pairs of unitary testers in distinguishing between unitary transformations not unlike the well known entropic bounds for observables. We show that in the case of specific sets of testers whic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f51c241933ca2082ca85a77dfac10839

Nonorthogonal unitaries in two-way quantum key distribution

Autor: Jesni Shamsul Shaari

Publikováno v: Physics Letters A. 378:863-868

Two-way Quantum Key Distribution (QKD) schemes commonly make use of a set of unitaries corresponding to binary encodings which can in principle be distinguished perfectly. In this paper, inline with the proposal in Chiribella et al. (2008) [13], we i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64c8de7bf46114821269241472ea8d48
https://doi.org/10.1016/j.physleta.2014.01.047

Mutually unbiased unitary bases

Autor: Stefano Mancini, Jesni Shamsul Shaari, Rinie N. M. Nasir

Publikováno v: Physical Review A. 94

We consider the notion of unitary transformations forming bases for subspaces of $M(d,\mathbb{C})$ such that the square of the Hilbert-Schmidt inner product of matrices from the differing bases is a constant. Moving from the qubit case, we construct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e05f6c54bb8dcd0ffdd9d60ae2dc0c
https://doi.org/10.1103/physreva.94.052328