Results 31 to 40 of about 449,947 (310)
Acknowledgement to Reviewers of Entropy in 2018
Rigorous peer-review is the corner-stone of high-quality academic publishing [...]
Entropy Editorial Office
doaj +1 more source
BD entropy and Bernis–Friedman entropy
In this note, we propose in the full generality a link between the BD entropy introduced by D. Bresch and B. Desjardins for the viscous shallow-water equations and the Bernis–Friedman (called BF) dissipative entropy introduced to study the lubrication equations.
Bresch, Didier +4 more
openaire +5 more sources
Let $S(\rho)=-\Tr (\rho\log\rho)$ be the von Neumann entropy of an $N$-dimensional quantum state $\rho$ and $e_2(\rho)$ the second elementary symmetric polynomial of the eigenvalues of $\rho$. We prove the inequality S(\rho) \;\le \; c(N) \; \sqrt{e_2(\rho)} where $c(N)=\log(N) \, \sqrt{\frac{2N}{N-1}}$.
Meik Hellmund, Armin Uhlmann
openaire +2 more sources
Entropy: Modern Lab Management Software
Fixed ParamStore GUI now looks for param.db file in .entropy folder ParamStore GUI tags are now editable and correctly displayedIf you use this software in your published work, please cite it as ...
Quantum Machines
core +1 more source
AbstractWe reconsider the old problem of sorting under partial information, and give polynomial time algorithms for the following tasks: (1) Given a partial order P, find (adaptively) a sequence of comparisons (questions of the form, "is x < y?") which sorts ( i.e., finds an unknown linear extension of) P using O(log(e(P))) comparisons in worst case ...
Jeff Kahn 0001, Jeong Han Kim
openaire +1 more source
Entropy-based semi-fragile watermarking of remote sensing images in the wavelet domain
This article presents a semi-fragile image tampering detection method for multi-band images. In the proposed scheme, a mark is embedded into remote sensing images, which have multiple frequential values for each pixel, applying tree-structured vector ...
Serra Ruiz, Jordi +5 more
core +1 more source
Cr and Mn play intriguing roles in determining the magnetic properties of CoFeNi-based high-entropy alloys (HEA). In this study, we tune the stoichiometric Mn composition to systematically explore the magnetic properties of (CoCrFeNi)1−xMnx HEAs.
Chi-Hung Lee +15 more
doaj +1 more source
On the Entropy and the Maximum Entropy Principle of Uncertain Variables
A new variance formula is developed using the generalized inverse of an increasing function. Based on the variance formula, a new entropy formula for any uncertain variable is provided.
Guanzhong Ma, Yujun Liu
core +1 more source
I study the physical nature of traces. Surprisingly, (i) systems separation with (ii) temperature differences and (iii) long thermalization times are sufficient conditions to produce macroscopic traces. Traces of the past are ubiquitous because these conditions are largely satisfied in our universe.
openaire +5 more sources
In this paper, some general properties of Shannon information measures are investigated over sets of probability distributions with restricted marginals. Certain optimization problems associated with these functionals are shown to be NP-hard, and their special cases are found to be essentially information-theoretic restatements of well-known ...
Mladen Kovacevic 0001 +2 more
openaire +3 more sources

