Results 31 to 40 of about 1,559,477 (277)

Experimental detection of quantum channel capacities [PDF]

open access: yes, 2017
We present an effcient experimental procedure that certifies non vanishing quantum capacities for qubit noisy channels. Our method is based on the use of a fixed bipartite entangled state, where the system qubit is sent to the channel input. A particular
Ciampini, Mario Arnolfo   +6 more
core   +2 more sources

Broadband channel capacities

open access: yes, 2003
We study the communication capacities of bosonic broadband channels in the presence of different sources of noise. In particular we analyze lossy channels in presence of white noise and thermal bath.
A.S. Holevo   +27 more
core   +1 more source

Quantum Channel Capacities Per Unit Cost [PDF]

open access: yes, 2018
Communication over a noisy channel is often conducted in a setting in which different input symbols to the channel incur a certain cost. For example, for bosonic quantum channels, the cost associated with an input state is the number of photons, which is
Ding, Dawei   +2 more
core   +3 more sources

Quantum Channel Capacities

open access: yes, 2010
A quantum communication channel can be put to many uses: it can transmit classical information, private classical information, or quantum information. It can be used alone, with shared entanglement, or together with other channels.
Smith, Graeme
core   +1 more source

Perceptual Capacities [PDF]

open access: yes, 2019
Despite their importance in the history of philosophy and in particular in the work of Aristotle and Kant, mental capacities have been neglected in recent philosophical work.
Schellenberg, Susanna
core   +2 more sources

The Ethics of Care in Disaster Contexts from a Gender and Intersectional Perspective

open access: yesPhilosophies
Feminist reflections on the sexual division of labour have given rise to a body of knowledge on the ethics of care from different disciplines, including philosophy, in which outstanding contributions to the topic have been formulated.
Rosario González-Arias   +2 more
doaj   +1 more source

Discontinuous symplectic capacities

open access: yes, 2013
We show that the spherical capacity is discontinuous on a smooth family of ellipsoidal shells. Moreover, we prove that the shell capacity is discontinuous on a family of open sets with smooth connected boundaries.Comment: We include generalizations to ...
D. McDuff   +9 more
core   +1 more source

Quantum reading capacity [PDF]

open access: yesNew 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
openaire   +5 more sources

Potential capacities of quantum channels

open access: yes, 2016
We introduce potential capacities of quantum channels in an operational way and provide upper bounds for these quantities, which quantify the ultimate limit of usefulness of a channel for a given task in the best possible context.
Winter, Andreas, Yang, Dong
core   +1 more source

Partial energies fluctuations and negative heat capacities [PDF]

open access: yes, 2004
We proceed to a critical examination of the method used in nuclear fragmentation to exhibit signals of negative heat capacity. We show that this method leads to unsatisfactory results when applied to a simple and well controlled model.
Campi, Xavier   +3 more
core   +5 more sources

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