Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Bäuml, Stefan"'
Continuous variable quantum key distribution (CVQKD) with discrete modulation combines advantages of CVQKD, such as the implementability using readily available technologies, with advantages of discrete variable quantum key distribution, such as easi
Externí odkaz:
http://arxiv.org/abs/2407.03087
Publikováno v:
Quantum 8, 1418 (2024)
Continuous variable quantum key distribution with discrete modulation has the potential to provide information-theoretic security using widely available optical elements and existing telecom infrastructure. While their implementation is significantly
Externí odkaz:
http://arxiv.org/abs/2303.09255
Publikováno v:
Phys. Rev. Lett. 126, 190502 (2021)
We study the detection of continuous-variable entanglement, for which most of the existing methods designed so far require a full specification of the devices, and we present protocols for entanglement detection in a scenario where the measurement de
Externí odkaz:
http://arxiv.org/abs/2101.10778
Quantum networks will enable the implementation of communication tasks with qualitative advantages with respect to the communication networks we know today. While it is expected that the first demonstrations of small scale quantum networks will take
Externí odkaz:
http://arxiv.org/abs/2012.06764
Publikováno v:
Physical Review X, vol. 11, no. 4, page 041016, October 2021
We consider the distribution of secret keys, both in a bipartite and a multipartite (conference) setting, via a quantum network and establish a framework to obtain bounds on the achievable rates. We show that any multipartite private state--the outpu
Externí odkaz:
http://arxiv.org/abs/1912.03646
The traditional perspective in quantum resource theories concerns how to use free operations to convert one resourceful quantum state to another one. For example, a fundamental and well known question in entanglement theory is to determine the distil
Externí odkaz:
http://arxiv.org/abs/1907.04181
Publikováno v:
Physical Review Letters, vol. 121, issue 25, page 250504, December 2018
Bipartite quantum interactions have applications in a number of different areas of quantum physics, reaching from fundamental areas such as quantum thermodynamics and the theory of quantum measurements to other applications such as quantum computers,
Externí odkaz:
http://arxiv.org/abs/1812.08223
Akademický článek
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Publikováno v:
J. Math. Phys. 60, 072201 (2019)
We investigate the use of noisy entanglement as a resource in classical communication via a quantum channel. In particular, we are interested in the question whether for any entangled state, including bound entangled states, there exists a quantum ch
Externí odkaz:
http://arxiv.org/abs/1810.11431
Publikováno v:
Communications Physics 3.1 (2020): 1-12
Quantum networks will allow to implement communication tasks beyond the reach of their classical counterparts. A pressing and necessary issue for the design of quantum network protocols is the quantification of the rates at which these tasks can be p
Externí odkaz:
http://arxiv.org/abs/1809.03120