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Abstract
In a recent paper (\textit{Scheme of the arrangement for attack on the protocol BB84}, Optik 127(18):7083-7087, Sept 2016), a protocol was proposed for using weak measurement to attack BB84. This claimed the four basis states typically used could be perfectly discriminated, and so an interceptor could obtain all information carried. We show this attack fails when considered using standard quantum mechanics, as expected - such ``single-shot" quantum state discrimination is impossible, even using weak measurement.
Original language | English |
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Article number | 167451 |
Number of pages | 3 |
Journal | Optik |
Volume | 243 |
Early online date | 17 Jun 2021 |
DOIs | |
Publication status | Published - Oct 2021 |
Bibliographical note
Funding Information:This work was supported by the Engineering and Physical Sciences Research Council (Grants EP/P510269/1 , EP/T001011/1 , EP/R513386/1 , EP/M013472/1 and EP/L024020/1 ).
Publisher Copyright:
© 2021 The Authors
Structured keywords
- QETLabs
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QComms2: 8031 EP/T001011/1 Quantum Communication Hub via York
Rarity, J. G., Nejabati, R., Simeonidou, D., Sahin, D., Kanellos, G., Aktas, D. V. C., Joshi, S. K., Lowndes, D. L. D., Venkatachalam, N., Hugues Salas, E., Woodland, E. M., Erven, C., Zhang, P., Hance, J. R., Clark, M., Rosenfeld, L. M., Hastings, E. M. J., Johlinger, F. B., Wang, R., Stange Tessinari, R., Solomons, N. R., Fasoulakis, T. & Alia, O.
1/12/19 → 30/11/24
Project: Research