Searched for: author%3A%22Rozpedek%2C+F.D.%22
(1 - 9 of 9)
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Zhao, Yuan Yuan (author), Rozpedek, F.D. (author), Hou, Zhibo (author), Wu, Kang Da (author), Xiang, Guo Yong (author), Li, Chuan Feng (author), Guo, Guang Can (author)
Quantum uncertainty is a well-known property of quantum mechanics that states the impossibility of predicting measurement outcomes of multiple incompatible observables simultaneously. In contrast, the uncertainty in the classical domain comes from the lack of information about the exact state of the system. One may naturally ask, whether the...
journal article 2022
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Coopmans, T.J. (author), Knegjens, R.J. (author), Dahlberg, E.A. (author), Maier, D.J. (author), Nijsten, L.M.J. (author), de Oliveira Filho, J.A. (author), Papendrecht, M.N.G. (author), Rabbie, J. (author), Rozpedek, F.D. (author), Skrzypczyk, M.D. (author), Wubben, L.C.J. (author), de Jong, W. (author), Wehner, S.D.C. (author)
In order to bring quantum networks into the real world, we would like to determine the requirements of quantum network protocols including the underlying quantum hardware. Because detailed architecture proposals are generally too complex for mathematical analysis, it is natural to employ numerical simulation. Here we introduce NetSquid, the...
journal article 2021
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Murta Guimarães, G. (author), Rozpedek, F.D. (author), Ribeiro, J.D. (author), Elkouss Coronas, D. (author), Wehner, S.D.C. (author)
We consider the asymptotic key rates achieved in the simplest quantum key distribution protocols, namely, the BB84 and the six-state protocols when nonuniform noise is present in the system. We first observe that higher qubit error rates do not necessarily imply lower key rates. Second, we consider protocols with advantage distillation and...
journal article 2020
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Rozpedek, F.D. (author)
doctoral thesis 2019
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Rozpedek, F.D. (author), Yehia, R. (author), Goodenough, K.D. (author), Ruf, M.T. (author), Humphreys, P.C. (author), Hanson, R. (author), Wehner, S.D.C. (author), Elkouss Coronas, D. (author)
Quantum channels enable the implementation of communication tasks inaccessible to their classical counterparts. The most famous example is the distribution of secret key. However, in the absence of quantum repeaters, the rate at which these tasks can be performed is dictated by the losses in the quantum channel. In practice, channel losses...
journal article 2019
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Rozpedek, F.D. (author), Schiet, Thomas (author), Lê, P.T. (author), Elkouss Coronas, D. (author), Doherty, Andrew C. (author), Wehner, S.D.C. (author)
The goal of entanglement distillation is to turn a large number of weakly entangled states into a smaller number of highly entangled ones. Practical entanglement distillation schemes offer a trade-off between the fidelity to the target state and the probability of successful distillation. Exploiting such trade-offs is of interest in the...
journal article 2018
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Rozpedek, F.D. (author), Goodenough, K.D. (author), Ribeiro, J.D. (author), Kalb, N. (author), Caprara Vivoli, V. (author), Reiserer, A.A. (author), Hanson, R. (author), Wehner, S.D.C. (author), Elkouss Coronas, D. (author)
Quantum key distribution allows for the generation of a secret key between distant parties connected by a quantum channel such as optical fibre or free space. Unfortunately, the rate of generation of a secret key by direct transmission is fundamentally limited by the distance. This limit can be overcome by the implementation of so-called...
journal article 2018
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van Dam, S.B. (author), Humphreys, P.C. (author), Rozpedek, F.D. (author), Wehner, S.D.C. (author), Hanson, R. (author)
Quantum networks distributed over distances greater than a few kilometres will be limited by the time required for information to propagate between nodes. We analyse protocols that are able to circumvent this bottleneck by employing multi-qubit nodes and multiplexing. For each protocol, we investigate the key network parameters that determine...
journal article 2017
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Rozpedek, F.D. (author), Kaniewski, J. (author), Coles, Patrick J. (author), Wehner, S.D.C. (author)
The quantum uncertainty principle famously predicts that there exist measurements that are inherently incompatible, in the sense that their outcomes cannot be predicted simultaneously. In contrast, no such uncertainty exists in the classical domain, where all uncertainty results from ignorance about the exact state of the physical system....
journal article 2017
Searched for: author%3A%22Rozpedek%2C+F.D.%22
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