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The observational ubiquity of inverse power law spectra (IPL) in complex phenomena entails theory for dynamic fractal phenomena capturing their fractal dimension, dynamics, and statistics. These and other properties are consequences of the…

适应与自组织系统 · 物理学 2022-11-01 Korosh Mahmoodi , Scott E. Kerick , Paolo Grigolini , Piotr J. Franaszczuk , Bruce J. West

In view of promising applications of fractal nanostructures, we analyze the spectra of quantum particles in the Sierpinski carpet and study the non-correlated electron gas in this geometry. We show that the spectrum exhibits scale…

介观与纳米尺度物理 · 物理学 2015-03-27 Alberto Hernando , Miroslav Sulc , Jiri Vanicek

We investigate the fractal structure of $2d$ quantum gravity coupled to matter by measuring the distributions of so-called baby universes. We demonstrate that the method works well as long as $c \leq 1$. For $c >1$ it is not clear what…

高能物理 - 理论 · 物理学 2009-10-22 J. Ambjorn , G. Thorleifsson

We investigate the fractal structure of $2d$ quantum gravity coupled to matter by measuring the distributions of so-called baby universes. We demonstrate that the method works well as long as $c \leq 1$. For $c >1$ it is not clear what…

高能物理 - 格点 · 物理学 2015-06-25 J. Ambjorn , G. Thorleifsson

We report experimental evidence of the route to spatiotemporal chaos in a large 1D-array of hotspots in a thermoconvective system. Increasing the driving force, a stationary cellular pattern becomes unstable towards a mixed pattern of…

混沌动力学 · 物理学 2011-03-10 M. A. Miranda , J. Burguete

The global energy fluctuations of a low density gas granular gas in the homogeneous cooling state near its clustering instability are studied by means of molecular dynamics simulations. The relative dispersion of the fluctuations is shown…

统计力学 · 物理学 2009-11-10 J. Javier Brey , M. I. Garcia de Soria , P. Maynar , M. J. Ruiz-Montero

We show that hyperscaling and finite-size scaling imply that the probability distribution of the order parameter in finite size critical systems exhibit data collapse. We consider the examples of equilibrium critical systems, and a…

统计力学 · 物理学 2009-10-31 Vivek Aji , Nigel Goldenfeld

We apply Fourier analysis to 214 light curves of long gamma-ray bursts and study the statistical properties of their power density spectra (PDSs). The averaged PDS is found to follow a power law of index -5/3 over almost 2 decades of…

天体物理学 · 物理学 2009-10-30 A. M. Beloborodov , B. E. Stern , R. Svensson

The spectral form factor of random matrix theory plays a key role in the description of disordered and chaotic quantum systems. While its moments are known to be approximately Gaussian, corrections subleading in the matrix dimension, $D$,…

量子物理 · 物理学 2026-01-06 Alex Altland , Francisco Divi , Tobias Micklitz , Silvia Pappalardi , Maedeh Rezaei

We investigate transport properties of quantized chaotic systems in the short wavelength limit. We focus on non-coherent quantities such as the Drude conductance, its sample-to-sample fluctuations, shot-noise and the transmission spectrum,…

介观与纳米尺度物理 · 物理学 2007-05-23 Ph. Jacquod , Robert S. Whitney

The role of inhomegeneity in determining the properties of correlated electron systems is poorly understood because of the dearth of structural probes of disorder at the nanoscale. Advances in both neutron and x-ray scattering…

强关联电子 · 物理学 2025-03-19 Raymond Osborn , Damjan Pelc , Matthew Krogstad , Stephan Rosenkranz , Martin Greven

The large scale distribution of galaxies in the universe displays a complex pattern of clusters, super-clusters, filaments and voids with sizes limited only by the boundaries of the available samples. A quantitative statistical…

宇宙学与河外天体物理 · 物理学 2015-05-20 Francesco Sylos Labini , Luciano Pietronero

The aim of this review article is to give a comprehensive description of the scaling properties detected for the distribution of cosmic structures. Due to the great variety of statistical methods to describe the large-scale structure of the…

天体物理学 · 物理学 2008-11-26 Stefano Borgani

A recent experiment [Sadoon AA, Wang Y. 2018 Phys. Rev. E 98, 042411] has revealed that nucleoid associated proteins (i.e., DNA-binding proteins) exhibit highly heterogeneous diffusion processes in bacteria where not only the diffusion…

统计力学 · 物理学 2021-03-09 Yuichi Itto , Christian Beck

In this paper, we study random features manifested in components of energy eigenfunctions of quantum chaotic systems, given in the basis of unperturbed, integrable systems. Based on semiclassical analysis, particularly on Berry's…

统计力学 · 物理学 2023-03-31 Jiaozi Wang , Wen-ge Wang

The spectral fluctuations of quantum (or wave) systems with a chaotic classical (or ray) limit are mostly universal and faithful to random-matrix theory. Taking up ideas of Pechukas and Yukawa we show that equilibrium statistical mechanics…

混沌动力学 · 物理学 2022-10-12 Peter Braun , Sven Gnutzmann , Fritz Haake , Marek Kus , Karol Zyczkowski

Counts of galaxies as a function of apparent magnitude are among the most time-honored observations in cosmology. In this Letter, we focus on some statistical properties of these counts which are fundamental in order to characterize the…

天体物理学 · 物理学 2007-05-23 Francesco Sylos Labini , Andrea Gabrielli

The spectrum and scale of fluctuations in protein structures affect the range of cell phenomena, including stability of protein structures or their fragments, allosteric transitions and energy transfer. The study presents a…

生物大分子 · 定量生物学 2015-05-13 Anatoly M. Ruvinsky , Ilya A. Vakser

Microscopic mechanisms of positive charge transfer in DNA remain unclear. A quantum state of electron hole in DNA is determined by the competition of a pi-stacking interaction $b$ smearing a charge between different base pairs and…

软凝聚态物质 · 物理学 2008-03-15 D. B. Uskov , A. L. Burin

Many biological processes involve one dimensional diffusion over a correlated inhomogeneous energy landscape with a correlation length $\xi_c$. Typical examples are specific protein target location on DNA, nucleosome repositioning, or DNA…

生物大分子 · 定量生物学 2007-05-23 Michael Slutsky , Mehran Kardar , Leonid A. Mirny
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