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Entropy, Volume 25, Issue 1

January 2023 - 179 articles

Cover Story: A molecular electronic wavefunction prepared at a highly excited adiabatic state embedded in a densely quasi-degenerate manifold quickly begins to undergo continual nonadiabatic mixing with other states, each of which in turn further mixes with other states. The mixing is caused by the so-called nonadiabatic interactions due to a significant breakdown of the Born–Oppenheimer approximations. The resultant electronic wavepacket penetrates into the broader domain in the Hilbert space, and thus, the dynamics looks like a fractional Brownian motion. A monotonically increasing Shannon entropy and other indicators highlight the presence of quantum chaos in the electronic state of molecules. This intensive chaos brings about peculiar characteristics in the dynamics of molecules. View this paper
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Articles (179)

  • Article
  • Open Access
1 Citations
2,758 Views
10 Pages

12 January 2023

The quantification of entropy in images is a topic of interest that has had different applications in the field of agronomy, product generation and medicine. Some algorithms have been proposed for the quantification of the irregularity present in an...

  • Article
  • Open Access
9 Citations
3,042 Views
19 Pages

12 January 2023

This paper presents a lossless image compression method with a fast decoding time and flexible adjustment of coder parameters affecting its implementation complexity. A comparison of several approaches for computing non-MMSE prediction coefficients w...

  • Article
  • Open Access
6 Citations
4,070 Views
10 Pages

12 January 2023

In 2019, Schilling et al. claimed that they achieved the supercooling of a body without external intervention in their thermoelectric experiments, thus arguing that the second law of thermodynamics was bent. Kostic suggested that their claim lacked f...

  • Article
  • Open Access
9 Citations
2,388 Views
39 Pages

12 January 2023

We deal with multidimensional regularized systems of equations for the one-velocity and one-temperature inert gas mixture dynamics consisting of the balance equations for the mass of components and the momentum and total energy of the mixture, with d...

  • Article
  • Open Access
3 Citations
2,976 Views
16 Pages

Dynamics of Quantum Networks in Noisy Environments

  • Chang-Yue Zhang,
  • Zhu-Jun Zheng,
  • Shao-Ming Fei and
  • Mang Feng

12 January 2023

Noise exists inherently in realistic quantum systems and affects the evolution of quantum systems. We investigate the dynamics of quantum networks in noisy environments by using the fidelity of the quantum evolved states and the classical percolation...

  • Article
  • Open Access
2 Citations
2,851 Views
39 Pages

12 January 2023

Kernel methods have played a major role in the last two decades in the modeling and visualization of complex problems in data science. The choice of kernel function remains an open research area and the reasons why some kernels perform better than ot...

  • Article
  • Open Access
2 Citations
2,775 Views
16 Pages

12 January 2023

Quantum routers will provide for important functionality in emerging quantum networks, and the deployment of quantum routing in real networks will initially be realized on low-complexity (few-qubit) noisy quantum devices. A true working quantum route...

  • Article
  • Open Access
3 Citations
3,635 Views
12 Pages

Heart Rate Complexity and Autonomic Modulation Are Associated with Psychological Response Inhibition in Healthy Subjects

  • Francesco Riganello,
  • Martina Vatrano,
  • Paolo Tonin,
  • Antonio Cerasa and
  • Maria Daniela Cortese

12 January 2023

Background: the ability to suppress/regulate impulsive reactions has been identified as common factor underlying the performance in all executive function tasks. We analyzed the HRV signals (power of high (HF) and low (LF) frequency, Sample Entropy (...

  • Article
  • Open Access
4 Citations
2,133 Views
16 Pages

Stochastic Particle Creation: From the Dynamical Casimir Effect to Cosmology

  • Matías Mantiñan,
  • Francisco D. Mazzitelli and
  • Leonardo G. Trombetta

11 January 2023

We study a stochastic version of the dynamical Casimir effect, computing the particle creation inside a cavity produced by a random motion of one of its walls. We first present a calculation perturbative in the amplitude of the motion. We compare the...

  • Article
  • Open Access
13 Citations
4,368 Views
16 Pages

Mining Mobile Network Fraudsters with Augmented Graph Neural Networks

  • Xinxin Hu,
  • Haotian Chen,
  • Hongchang Chen,
  • Xing Li,
  • Junjie Zhang and
  • Shuxin Liu

11 January 2023

With the rapid evolution of mobile communication networks, the number of subscribers and their communication practices is increasing dramatically worldwide. However, fraudsters are also sniffing out the benefits. Detecting fraudsters from the massive...

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Entropy - ISSN 1099-4300