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Entropy, Volume 24, Issue 10

October 2022 - 184 articles

Cover Story: Quantum physics, in its current formulation, is time-reversible. We propose a definition of quantum entropy that accounts for uncertainty in the specification of a quantum state and the probabilistic nature of its observables. This entropy increases monotonically during a time evolution of fermions in coherent states. We review some physical scenarios believed to demonstrate the reversibility of quantum physics, and we show that the entropy increases. We hypothesize that the entropy of a closed system never decreases, i.e., that randomness cannot be reduced, thus inducing a time arrow in quantum physics. We also suggest that creations and annihilations of particles are triggered to bar the entropy from decreasing. View this paper
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Articles (184)

  • Article
  • Open Access
4 Citations
3,158 Views
16 Pages

21 October 2022

Venture capital (VC) is a form of private equity financing provided by VC institutions to startups with high growth potential due to innovative technology or novel business models but also high risks. To against uncertainties and benefit from mutual...

  • Article
  • Open Access
19 Citations
6,300 Views
24 Pages

Comparison of Entropy Calculation Methods for Ransomware Encrypted File Identification

  • Simon R. Davies,
  • Richard Macfarlane and
  • William J. Buchanan

21 October 2022

Ransomware is a malicious class of software that utilises encryption to implement an attack on system availability. The target’s data remains encrypted and is held captive by the attacker until a ransom demand is met. A common approach used by...

  • Article
  • Open Access
2,217 Views
10 Pages

21 October 2022

We address minimization of information leakage from continuous-variable quantum channels. It is known, that regime of minimum leakage can be accessible for the modulated signal states with variance equivalent to a shot noise, i.e., vacuum fluctuation...

  • Article
  • Open Access
3,618 Views
21 Pages

20 October 2022

In this work, we formulate the image in-painting as a matrix completion problem. Traditional matrix completion methods are generally based on linear models, assuming that the matrix is low rank. When the original matrix is large scale and the observe...

  • Article
  • Open Access
1 Citations
2,082 Views
13 Pages

20 October 2022

Blaum–Roth Codes are binary maximum distance separable (MDS) array codes over the binary quotient ring F2[x]/(Mp(x)), where Mp(x)=1+x+⋯+xp−1, and p is a prime number. Two existing all-erasure decoding methods for Blaum–Roth co...

  • Article
  • Open Access
6 Citations
10,067 Views
17 Pages

20 October 2022

The neural systems’ electric activities are fundamental for the phenomenology of consciousness. Sensory perception triggers an information/energy exchange with the environment, but the brain’s recurrent activations maintain a resting stat...

  • Article
  • Open Access
1 Citations
2,673 Views
10 Pages

Behavioral Capital Theory via Canonical Quantization

  • Raymond J. Hawkins and
  • Joseph L. D’Anna

20 October 2022

We show how a behavioral form of capital theory can be derived using canonical quantization. In particular, we introduce quantum cognition into capital theory by applying Dirac’s canonical quantization approach to Weitzman’s Hamiltonian f...

  • Article
  • Open Access
7 Citations
3,229 Views
18 Pages

Multi-Task Learning and Improved TextRank for Knowledge Graph Completion

  • Hao Tian,
  • Xiaoxiong Zhang,
  • Yuhan Wang and
  • Daojian Zeng

20 October 2022

Knowledge graph completion is an important technology for supplementing knowledge graphs and improving data quality. However, the existing knowledge graph completion methods ignore the features of triple relations, and the introduced entity descripti...

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Entropy - ISSN 1099-4300