Results 31 to 40 of about 352,049 (339)

Continuity of Quantum Channel Capacities [PDF]

open access: yesCommunications in Mathematical Physics, 2009
We prove that a broad array of capacities of a quantum channel are continuous. That is, two channels that are close with respect to the diamond norm have correspondingly similar communication capabilities. We first show that the classical capacity, quantum capacity, and private classical capacity are continuous, with the variation on arguments epsilon ...
Leung, Debbie, Smith, Graeme
openaire   +3 more sources

Information flow and error scaling for fully quantum control

open access: yesPhysical Review Research, 2022
The optimally designed control of quantum systems is playing an increasingly important role to engineer novel and more efficient quantum technologies. Here, in the scenario represented by controlling an arbitrary quantum system via the interaction with ...
Stefano Gherardini   +4 more
doaj   +1 more source

Quantum capacities for entanglement networks [PDF]

open access: yes2016 IEEE International Symposium on Information Theory (ISIT), 2016
We discuss quantum capacities for two types of entanglement networks: $\mathcal{Q}$ for the quantum repeater network with free classical communication, and $\mathcal{R}$ for the tensor network as the rank of the linear operation represented by the tensor network.
Cui, Shawn X   +3 more
openaire   +2 more sources

Entanglement-assisted capacity of constrained quantum channel [PDF]

open access: yes, 2002
In this paper we fill the gap in previous works by proving the formula for entanglement-assisted capacity of quantum channel with additive constraint (such as bosonic Gaussian channel).
Holevo, A. S.
core   +2 more sources

Thermodynamic Capacity of Quantum Processes

open access: yesPhysical Review Letters, 2019
6 pages, 2 figures, journal version. The technical appendix was split off into a companion paper that will be submitted separately (cf. today's arXiv listing)
Faist, Philippe   +2 more
openaire   +6 more sources

Communication Capacity of Quantum Computation [PDF]

open access: yesPhysical Review Letters, 2000
4 pages ...
Bose, S, Rallan, L, Vedral, V
openaire   +4 more sources

The Structure and Quantum Capacity of a Partially Degradable Quantum Channel

open access: yesIEEE 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
doaj   +1 more source

Quantum Capacities of Bosonic Channels [PDF]

open access: yesPhysical Review Letters, 2007
5 pages, 2 ...
Wolf, M., Pérez-Garcia, D., Giedke, G.
openaire   +4 more sources

Quantum Biological Channel Modeling and Capacity Calculation

open access: yesLife, 2012
Quantum mechanics has an important role in photosynthesis, magnetoreception, and evolution. There were many attempts in an effort to explain the structure of genetic code and transfer of information from DNA to protein by using the concepts of quantum ...
Ivan B. Djordjevic
doaj   +1 more source

Collective heat capacity for quantum thermometry and quantum engine enhancements

open access: yesNew Journal of Physics, 2020
The performances of quantum thermometry in thermal equilibrium together with the output power of certain class of quantum engines share a common characteristic: both are determined by the heat capacity of the probe or working medium.
C L Latune, I Sinayskiy, F Petruccione
doaj   +1 more source

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