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Entropy, Volume 26, Issue 9

September 2024 - 95 articles

Cover Story: Time possesses a clear asymmetry between the past and the future; entropy increases, life evolves, we remember the past, and we plan the future. Yet fundamentally, our universe is governed by laws that are symmetric with respect to time reversal, making it difficult to identify a physical explanation for our experience of the irreversible passage of time. To reconcile this difference, we propose a toy model of emergent time asymmetries—the causal multibaker maps. After imposing a suitable initial condition and coarse graining on them, a Pearlean locally causal structure emerges. From this structure, we obtain not only the second law of thermodynamics but many additional time asymmetries resembling those of the real universe. View this paper
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Articles (95)

  • Article
  • Open Access
6 Citations
1,771 Views
18 Pages

One-Photon-Interference Quantum Secure Direct Communication

  • Xiang-Jie Li,
  • Min Wang,
  • Xing-Bo Pan,
  • Yun-Rong Zhang and
  • Gui-Lu Long

23 September 2024

Quantum secure direct communication (QSDC) is a quantum communication paradigm that transmits confidential messages directly using quantum states. Measurement-device-independent (MDI) QSDC protocols can eliminate the security loopholes associated wit...

  • Article
  • Open Access
4 Citations
2,395 Views
17 Pages

Motor Fault Diagnosis Based on Convolutional Block Attention Module-Xception Lightweight Neural Network

  • Fengyun Xie,
  • Qiuyang Fan,
  • Gang Li,
  • Yang Wang,
  • Enguang Sun and
  • Shengtong Zhou

23 September 2024

Electric motors play a crucial role in self-driving vehicles. Therefore, fault diagnosis in motors is important for ensuring the safety and reliability of vehicles. In order to improve fault detection performance, this paper proposes a motor fault di...

  • Article
  • Open Access
1,570 Views
17 Pages

23 September 2024

Spray drying is an energy-intensive process in industrial use, making energy recovery a critical focus for improving overall efficiency. This study investigates the potential of integrating heat-recovery systems, including an innovative air reheater,...

  • Article
  • Open Access
1 Citations
3,297 Views
21 Pages

Autocatalytic Sets and Assembly Theory: A Toy Model Perspective

  • Sebastian Raubitzek,
  • Alexander Schatten,
  • Philip König,
  • Edina Marica,
  • Sebastian Eresheim and
  • Kevin Mallinger

22 September 2024

Assembly Theory provides a promising framework to explain the complexity of systems such as molecular structures and the origins of life, with broad applicability across various disciplines. In this study, we explore and consolidate different aspects...

  • Article
  • Open Access
4 Citations
1,101 Views
16 Pages

Transient GI/MSP/1/N Queue

  • Andrzej Chydzinski

22 September 2024

A non-zero correlation between service times can be encountered in many real queueing systems. An attractive model for correlated service times is the Markovian service process, because it offers powerful fitting capabilities combined with analytical...

  • Article
  • Open Access
2 Citations
1,776 Views
12 Pages

Improving Transmission Line Fault Diagnosis Based on EEMD and Power Spectral Entropy

  • Yuan-Bin Chen,
  • Hui-Shan Cui,
  • Chia-Wei Huang and
  • Wei-Tai Hsu

21 September 2024

The fault diagnosis on a transmission line based on the characteristics of the power spectral entropy is proposed in this article. The data preprocessing for the experimental measurement is also introduced using the EEMD. The EEMD is used to preproce...

  • Article
  • Open Access
1,301 Views
8 Pages

21 September 2024

Generating vast arrays of genetic markers for evolutionary ecology studies has become routine and cost-effective. However, analyzing data from large numbers of loci associated with a small number of finite chromosomes introduces a challenge: loci on...

  • Article
  • Open Access
1 Citations
1,450 Views
15 Pages

Robustness of Entanglement for Dicke-W and Greenberger-Horne-Zeilinger Mixed States

  • Ling-Hui Zhu,
  • Zhen Zhu,
  • Guo-Lin Lv,
  • Chong-Qiang Ye and
  • Xiao-Yu Chen

21 September 2024

Quantum entanglement is a fundamental characteristic of quantum mechanics, and understanding the robustness of entanglement across different mixed states is crucial for comprehending the entanglement properties of general quantum states. In this pape...

  • Article
  • Open Access
1 Citations
1,169 Views
18 Pages

20 September 2024

Let Fq be a finite field with an odd characteristic. In this paper, we present a new result about double cyclic codes over a finite non-chain ring. Specifically, we study the double cyclic code over Fq+vFq+v2Fq with v3=v, which is isomorphic to Fq&ti...

  • Article
  • Open Access
2 Citations
1,887 Views
13 Pages

An Additively Optimal Interpreter for Approximating Kolmogorov Prefix Complexity

  • Zoe Leyva-Acosta,
  • Eduardo Acuña Yeomans and
  • Francisco Hernandez-Quiroz

20 September 2024

We study practical approximations of Kolmogorov prefix complexity (K) using IMP2, a high-level programming language. Our focus is on investigating the optimality of the interpreter for this language as the reference machine for the Coding Theorem Met...

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Entropy - ISSN 1099-4300