Results 21 to 30 of about 4,583,269 (264)
Nonconvexity of private capacity and classical environment-assisted capacity of a quantum channel [PDF]
Phys. Rev. A 94, 040301 (2016), 2016 The capacity of classical channels is convex. This is not the case for the quantum capacity of a channel: the capacity of a mixture of different quantum channels exceeds the mixture of the individual capacities and thus is non-convex. Here we show that this effect goes beyond the quantum capacity and holds for the private and classical environment ...
David Elkouss, Sergii Strelchuk
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Estimate Distillable Entanglement and Quantum Capacity by Squeezing Useless Entanglement [PDF]
IEEE Journal on Selected Areas in Communications, 2023 Quantum Internet relies on quantum entanglement as a fundamental resource for secure and efficient quantum communication, reshaping data transmission. In this context, entanglement distillation emerges as a crucial process that plays a pivotal role in ...
Chengkai Zhu, Chenghong Zhu, Xin Wang
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Quantum capacity and codes for the bosonic loss-dephasing channel [PDF]
Quantum, 2022 Bosonic qubits encoded in continuous-variable systems provide a promising alternative to two-level qubits for quantum computation and communication.
P. Leviant +3 more
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Generic nonadditivity of quantum capacity in simple channels [PDF]
Physical Review Letters, 2022 Determining capacities of quantum channels is a fundamental question in quantum information theory. Despite having rigorous coding theorems quantifying the flow of information across quantum channels, their capacities are poorly understood due to ...
Felix Leditzky +4 more
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Information transmission with continuous variable quantum erasure channels [PDF]
Quantum, 2023 Quantum capacity, as the key figure of merit for a given quantum channel, upper bounds the channel's ability in transmitting quantum information. Identifying different types of channels, evaluating the corresponding quantum capacity, and finding the ...
Changchun Zhong +2 more
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Computing Quantum Channel Capacities [PDF]
IEEE Transactions on Information Theory, 2021 v4: 22 pages, 4 figures, new ...
Navneeth Ramakrishnan +3 more
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Quantum Capacity under Adversarial Quantum Noise: Arbitrarily Varying Quantum Channels [PDF]
Communications in Mathematical Physics, 2012 Rudolf Ahlswede +3 more
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Battery Capacity of Energy-Storing Quantum Systems. [PDF]
Physical Review Letters, 2023 The quantum battery capacity is introduced in this Letter as a figure of merit that expresses the potential of a quantum system to store and supply energy.
Xue Yang +7 more
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Quantum reading capacity [PDF]
New Journal of Physics, 2011 The readout of a classical memory can be modelled as a problem of quantum channel discrimination, where a decoder retrieves information by distinguishing the different quantum channels encoded in each cell of the memory [S. Pirandola, Phys. Rev. Lett. 106, 090504 (2011)].
PIRANDOLA S +4 more
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On the Capacity Region of a Quantum Switch with Entanglement Purification [PDF]
IEEE Conference on Computer Communications, 2022 Quantum switches are envisioned to be an integral component of future entanglement distribution networks. They can provide high quality entanglement distribution service to end-users by performing quantum operations such as entanglement swapping and ...
Nitish K. Panigrahy +3 more
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