Results 41 to 50 of about 129,650 (250)

Generalized spectral form factors and the statistics of heavy operators

open access: yesJournal of High Energy Physics, 2022
The spectral form factor is a powerful probe of quantum chaos that diagnoses the statistics of energy levels, but is blind to other features of a theory such as matrix elements of operators or OPE coefficients in conformal field theories.
Alexandre Belin   +3 more
doaj   +1 more source

Analysis of Collective Behavior of Iran Banking Sector by Random Matrix Theory [PDF]

open access: yesIranian Journal of Finance, 2019
Banked based financial sector of Iran leads us to focus on the banking industry and its components. One of the important aspects of this industry is its coupling structure. In this paper, we have analyzed the collective behavior of Iran banking sector by
Reza Raei, Ali Namaki, Hanie Vahabi
doaj   +1 more source

Duality in non-Hermitian random matrix theory

open access: yesNuclear Physics B
We consider 9 Gaussian matrix ensembles characterized by single symmetry among the 38-fold symmetry classification classes of non-Hermitian random matrices, and establish exact duality formulae of certain observables between them.
Dang-Zheng Liu, Lu Zhang
doaj   +1 more source

Many-Body Quantum Chaos: Analytic Connection to Random Matrix Theory

open access: yesPhysical Review X, 2018
A key goal of quantum chaos is to establish a relationship between widely observed universal spectral fluctuations of clean quantum systems and random matrix theory (RMT).
Pavel Kos   +2 more
doaj   +1 more source

Phiclust: a clusterability measure for single-cell transcriptomics reveals phenotypic subpopulations

open access: yesGenome Biology, 2022
The ability to discover new cell phenotypes by unsupervised clustering of single-cell transcriptomes has revolutionized biology. Currently, there is no principled way to decide whether a cluster of cells contains meaningful subpopulations that should be ...
Maria Mircea   +5 more
doaj   +1 more source

Dynamical phases in a ``multifractal'' Rosenzweig-Porter model

open access: yesSciPost Physics, 2021
We consider the static and the dynamic phases in a Rosenzweig-Porter (RP) random matrix ensemble with a distribution of off-diagonal matrix elements of the form of the large-deviation ansatz.
Ivan M. Khaymovich, Vladimir E. Kravtsov
doaj   +1 more source

Universal shocks in random matrix theory [PDF]

open access: yesPhysical Review E, 2010
We link the appearance of universal kernels in random matrix ensembles to the phenomenon of shock formation in some fluid dynamical equations. Such equations are derived from Dyson's random walks after a proper rescaling of the time. In the case of the Gaussian Unitary Ensemble, on which we focus in this letter, we show that the orthogonal polynomials,
Blaizot, Jean-Paul, Nowak, Maciej A.
openaire   +3 more sources

Tensor product random matrix theory

open access: yesPhysical Review Research
The evolution of complex correlated quantum systems such as random circuit networks is governed by the dynamical buildup of both entanglement and entropy.
Alexander Altland   +2 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Enhancing Portfolio Allocation: A Random Matrix Theory Perspective

open access: yesMathematics
This paper explores the application of Random Matrix Theory (RMT) as a methodological enhancement for portfolio selection within financial markets.
Fabio Vanni   +2 more
doaj   +1 more source

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