Results 31 to 40 of about 11,611 (196)

Negative Rényi entropy and brane intersection

open access: yesJournal of High Energy Physics, 2023
In this work, we revisit the calculation of Rényi entropy in AdS3/(B)CFT2. We find that gravity solutions with brane intersection will lead to negative Rényi entropy.
Jia Tian, Xiaoge Xu
doaj   +1 more source

Renyi Entropy Estimation Revisited

open access: yesApproximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2017), 2017
We revisit the problem of estimating entropy of discrete distributions from independent samples, studied recently by Acharya, Orlitsky, Suresh and Tyagi (SODA 2015), improving their upper and lower bounds on the necessary sample size n. For estimating Renyi entropy of order alpha, up to constant accuracy and error probability, we show the following ...
Obremski, Maciej, Skorski, Maciej
openaire   +5 more sources

Holographic Renyi entropy from quantum error correction [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract We study Renyi entropies S n in quantum error correcting codes and compare the answer to the cosmic brane prescription for computing $$ {\tilde{S}}_n\equiv {n}^2{\partial}_n\left(\frac{n-1}{n}{S}_n\right) $$
Akers, Chris, Rath, Pratik
openaire   +4 more sources

Excited state Rényi entropy and subsystem distance in two-dimensional non-compact bosonic theory. Part II. Multi-particle states

open access: yesJournal of High Energy Physics, 2021
We study the excited state Rényi entropy and subsystem Schatten distance in the two-dimensional free massless non-compact bosonic field theory, which is a conformal field theory.
Jiaju Zhang, M. A. Rajabpour
doaj   +1 more source

Note on entropy dynamics in the Brownian SYK model

open access: yesJournal of High Energy Physics, 2021
We study the time evolution of Rényi entropy in a system of two coupled Brownian SYK clusters evolving from an initial product state. The Rényi entropy of one cluster grows linearly and then saturates to the coarse grained entropy.
Shao-Kai Jian, Brian Swingle
doaj   +1 more source

Estimating Renyi Entropy of Discrete Distributions [PDF]

open access: yesIEEE Transactions on Information Theory, 2017
It was recently shown that estimating the Shannon entropy $H({\rm p})$ of a discrete $k$-symbol distribution ${\rm p}$ requires $ (k/\log k)$ samples, a number that grows near-linearly in the support size. In many applications $H({\rm p})$ can be replaced by the more general R nyi entropy of order $ $, $H_ ({\rm p})$.
Jayadev Acharya   +3 more
openaire   +2 more sources

Generalizations of Levinson type inequalities via new Green functions with applications to information theory

open access: yesJournal of Inequalities and Applications, 2023
In this paper, four new Green functions are used to generalize Levinson-type inequalities for the class of 3-convex functions. The f-divergence, Renyi entropy, Renyi divergence, Shannon entropy, and the Zipf–Mandelbrot law are also used to apply the main
Awais Rasheed   +3 more
doaj   +1 more source

Green's function approach to entanglement entropy on lattices and fuzzy spaces

open access: yesPhysics Letters B, 2019
We develop a Green's function approach to compute Rényi entanglement entropy on lattices and fuzzy spaces. The Rényi entropy resulting from tracing out an arbitrary collection of subsets of coupled harmonic oscillators is written as zero temperature ...
Amel Allouche, Djamel Dou
doaj   +1 more source

Extensive Renyi Statistics from Non-Extensive Entropy

open access: yes, 2004
We show that starting with either the non-extensive Tsallis entropy in Wang's formalism or the extensive Renyi entropy, it is possible to construct the equilibrium statistical mechanics with non-Gibbs canonical distribution functions.
A.S. Parvan   +27 more
core   +1 more source

Non-additivity of Renyi entropy and Dvoretzky's Theorem [PDF]

open access: yes, 2010
The goal of this note is to show that the analysis of the minimum output p-Renyi entropy of a typical quantum channel essentially amounts to applying Milman's version of Dvoretzky's Theorem about almost Euclidean sections of high-dimensional convex ...
Amosov G. G.   +9 more
core   +3 more sources

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