Results 21 to 30 of about 8,255 (178)

Strong converse for the quantum capacity of the erasure channel for almost all codes [PDF]

open access: yes, 2014
A strong converse theorem for channel capacity establishes that the error probability in any communication scheme for a given channel necessarily tends to one if the rate of communication exceeds the channel's capacity.
Wilde, Mark M., Winter, Andreas
core   +4 more sources

All the entropies on the light-cone

open access: yesJournal of High Energy Physics, 2018
We determine the explicit universal form of the entanglement and Renyi entropies, for regions with arbitrary boundary on a null plane or the light-cone. All the entropies are shown to saturate the strong subadditive inequality. This Renyi Markov property
Horacio Casini   +2 more
doaj   +1 more source

Catalytic quantum randomness as a correlational resource

open access: yesPhysical Review Research, 2021
Catalysts are substances that assist transformation of other resourceful objects without being consumed in the process. However, the fact that their “catalytic power” is limited and can be depleted is often overlooked, especially in the recently ...
Seok Hyung Lie, Hyunseok Jeong
doaj   +1 more source

Efficiently sampling the realizations of bounded, irregular degree sequences of bipartite and directed graphs. [PDF]

open access: yesPLoS ONE, 2018
Since 1997 a considerable effort has been spent on the study of the swap (switch) Markov chains on graphic degree sequences. All of these results assume some kind of regularity in the corresponding degree sequences.
Péter L Erdős   +3 more
doaj   +1 more source

Unconstraining Graph-Constrained Group Testing [PDF]

open access: yes, 2018
In network tomography, one goal is to identify a small set of failed links in a network using as little information as possible. One way of setting up this problem is called graph-constrained group testing. Graph-constrained group testing is a variant of
Spang, Bruce, Wootters, Mary
core   +2 more sources

On the Accuracy of the Exponential Approximation to Random Sums of Alternating Random Variables

open access: yesMathematics, 2020
Using the generalized stationary renewal distribution (also called the equilibrium transform) for arbitrary distributions with a finite non-zero first moment, we prove moment-type error-bounds in the Kantorovich distance for the exponential approximation
Irina Shevtsova, Mikhail Tselishchev
doaj   +1 more source

On empirical cumulant generating functions of code lengths for individual sequences

open access: yes, 2016
We consider the problem of lossless compression of individual sequences using finite-state (FS) machines, from the perspective of the best achievable empirical cumulant generating function (CGF) of the code length, i.e., the normalized logarithm of the ...
Merhav, Neri
core   +1 more source

On a Dynamical Approach to Some Prime Number Sequences

open access: yesEntropy, 2018
We show how the cross-disciplinary transfer of techniques from dynamical systems theory to number theory can be a fruitful avenue for research. We illustrate this idea by exploring from a nonlinear and symbolic dynamics viewpoint certain patterns ...
Lucas Lacasa   +3 more
doaj   +1 more source

Entropic trade-off relations for quantum operations

open access: yes, 2013
Spectral properties of an arbitrary matrix can be characterized by the entropy of its rescaled singular values. Any quantum operation can be described by the associated dynamical matrix or by the corresponding superoperator.
C. Beck   +11 more
core   +1 more source

Think Globally, Act Locally: On the Optimal Seeding for Nonsubmodular Influence Maximization [PDF]

open access: yes, 2019
We study the r-complex contagion influence maximization problem. In the influence maximization problem, one chooses a fixed number of initial seeds in a social network to maximize the spread of their influence.
Schoenebeck, Grant   +2 more
core   +2 more sources

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