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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
1 Citations
1,803 Views
16 Pages

12 September 2024

As high-speed big-data communications impose new requirements on storage latency, low-density parity-check (LDPC) codes have become a widely used technology in flash-memory channels. However, the iterative LDPC decoding algorithm faces a high decodin...

  • Article
  • Open Access
1 Citations
1,043 Views
13 Pages

11 September 2024

We assess a scheme for measurement-free quantum teleportation from the perspective of the resources underpinning its performance. In particular, we focus on claims recently made about the crucial role played by the degree of non-Markovianity of the d...

  • Perspective
  • Open Access
2 Citations
5,060 Views
29 Pages

11 September 2024

This paper provides a perspective on applying the concepts of information thermodynamics, developed recently in non-equilibrium statistical physics, to problems in theoretical neuroscience. Historically, information and energy in neuroscience have be...

  • Article
  • Open Access
1 Citations
1,529 Views
11 Pages

11 September 2024

DNA molecules, as a storage medium, possess unique advantages. Not only does DNA storage exhibit significantly higher storage density compared to electromagnetic storage media, but it also features low energy consumption and extremely long storage ti...

  • Article
  • Open Access
4 Citations
2,321 Views
14 Pages

10 September 2024

Tsallis entropy has been widely used in image thresholding because of its non-extensive properties. The non-extensive parameter q contained in this entropy plays an important role in various adaptive algorithms and has been successfully applied in bi...

  • Feature Paper
  • Article
  • Open Access
2 Citations
3,548 Views
19 Pages

10 September 2024

Why do we remember the past, and plan the future? We introduce a toy model in which to investigate emergent time asymmetries: the causal multibaker maps. These are reversible discrete-time dynamical systems with configurable causal interactions. Impo...

  • Article
  • Open Access
1 Citations
1,722 Views
21 Pages

Probing Asymmetric Interactions with Time-Separated Mutual Information: A Case Study Using Golden Shiners

  • Katherine Daftari,
  • Michael L. Mayo,
  • Bertrand H. Lemasson,
  • James M. Biedenbach and
  • Kevin R. Pilkiewicz

10 September 2024

Leader–follower modalities and other asymmetric interactions that drive the collective motion of organisms are often quantified using information theory metrics like transfer or causation entropy. These metrics are difficult to accurately evalu...

  • Article
  • Open Access
2 Citations
1,516 Views
15 Pages

A Statistical Analysis of Fluid Interface Fluctuations: Exploring the Role of Viscosity Ratio

  • Selwin Heijkoop,
  • David Rieder,
  • Marcel Moura,
  • Maja Rücker and
  • Catherine Spurin

10 September 2024

Understanding multiphase flow through porous media is integral to geologic carbon storage or hydrogen storage. The current modelling framework assumes each fluid present in the subsurface flows in its own continuously connected pathway. The restricti...

  • Review
  • Open Access
16 Citations
5,856 Views
35 Pages

A Roadmap for NF-ISAC in 6G: A Comprehensive Overview and Tutorial

  • Azar Hakimi,
  • Diluka Galappaththige and
  • Chintha Tellambura

10 September 2024

Near-field (NF) integrated sensing and communication (ISAC) has the potential to revolutionize future wireless networks. It enables simultaneous communication and sensing operations on the same radio frequency (RF) resources using a shared hardware p...

  • Article
  • Open Access
2,038 Views
12 Pages

10 September 2024

The solvation thermodynamics (ST) formalism proposed by A. Ben-Naim is a mathematically rigorous and physically grounded theory for describing properties related to solvation. It considers the solvation process as the transfer of a molecule (“s...

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Entropy - ISSN 1099-4300