Results 1 to 10 of about 4,583,269 (264)
Energy-Constrained LOCC-Assisted Quantum Capacity of the Bosonic Dephasing Channel [PDF]
Entropy, 2023 We study the LOCC-assisted quantum capacity of a bosonic dephasing channel with energy constraint on the input states. We start our analysis by focusing on the energy-constrained squashed entanglement of the channel, which is an upper bound for the ...
Amir Arqand +2 more
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Capacity and Quantum Geometry of Parametrized Quantum Circuits [PDF]
PRX Quantum, 2021 To harness the potential of noisy intermediate-scale quantum devices, it is paramount to find the best type of circuits to run hybrid quantum-classical algorithms.
Tobias Haug, Kishor Bharti, M.S. Kim
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Communication Capacity of Quantum Computation [PDF]
Physical Review Letters, 2000 4 pages ...
Sougato Bose, Luke Rallan, Vlatko Vedral
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Bounding the quantum capacity with flagged extensions [PDF]
Quantum, 2022 In this article we consider flagged extensions of convex combination of quantum channels, and find general sufficient conditions for the degradability of the flagged extension.
Farzad Kianvash +2 more
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The Private Classical Capacity and Quantum Capacity of a Quantum Channel [PDF]
IEEE Transactions on Information Theory, 2005 A formula for the capacity of a quantum channel for transmitting private classical information is derived. This is shown to be equal to the capacity of the channel for generating a secret key, and neither capacity is enhanced by forward public classical communication.
I. Devetak
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The Structure and Quantum Capacity of a Partially Degradable Quantum Channel [PDF]
IEEE Access, 2014 The quantum capacity of degradable quantum channels has been proven to be additive. On the other hand, there is no general rule for the behavior of quantum capacity for antidegradable quantum channels.
Laszlo Gyongyosi
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Quantum capacities of transducers
Nature Communications, 2022 A unified metric to assess the performances of quantum transducers, i.e., converters of quantum information between different physical systems - is still lacking.
Chiao-Hsuan Wang +2 more
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Algorithmic complexity of quantum capacity [PDF]
Quantum Information Processing, 2018 Recently the theory of communication developed by Shannon has been extended to the quantum realm by exploiting the rules of quantum theory. This latter stems on complex vector spaces. However complex (as well as real) numbers are just idealizations and they are not available in practice where we can only deal with rational numbers.
Oskouei, Samad Khabbazi +1 more
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On the complementary quantum capacity of the depolarizing channel [PDF]
Quantum, 2017 The qubit depolarizing channel with noise parameter $\eta$ transmits an input qubit perfectly with probability $1-\eta$, and outputs the completely mixed state with probability $\eta$.
Debbie Leung, John Watrous
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Quantum capacity analysis of multi-level amplitude damping channels
Communications Physics, 2021 Estimating the capacity of quantum channels is relevant to understand at which rate quantum information can be exchanged. Here, the authors introduce multi-level amplitude damping channels that generalize the qubit amplitude damping noise model, analyse ...
Stefano Chessa, Vittorio Giovannetti
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