Results 71 to 80 of about 3,220,420 (230)

Brownian motion in AdS/CFT [PDF]

, 2009
We study Brownian motion and the associated Langevin equation in AdS/CFT. The Brownian particle is realized in the bulk spacetime as a probe fundamental string in an asymptotically AdS black hole background, stretching between the AdS boundary and the ...
B.D. Chowdhury, C.P. Herzog, C.P. Herzog, D. Mateos, E. Witten, H. Liu, J. Casalderrey-Solana, J. Dunkel, J.M. Maldacena, J.M. Maldacena, Jan de Boer, K.S. Thorne, L. Susskind, M. Fujita, Masaki Shigemori, Mukund Rangamani, N.D. Birrell, O. Saremi, P. Hayden, P. Kovtun, R. Brown, R. Kubo, R. Kubo, R.C. Myers, S. Bhattacharyya, T. Harmark, V. Balasubramanian, Veronika E Hubeny, Y. Sekino   +28 more
core   +3 more sources

Multi-Point and Anti-Periodic Conditions for Generalized Langevin Equation with Two Fractional Orders

Fractal and Fractional, 2019
With anti-periodic and a new class of multi-point boundary conditions, we investigate, in this paper, the existence and uniqueness of solutions for the Langevin equation that has Caputo fractional derivatives of two different orders.
A. Salem, Balqees Alghamdi
semanticscholar   +1 more source

Extension of the Langevin power curve analysis by separation per operational state [PDF]

Wind Energy Science
In the last few years, the dynamical characterization of the power output of a wind turbine by means of a Langevin equation has been well established. For this approach, temporally highly resolved measurements of wind speed and power output are used to ...
C. Wiedemann, H. Bette, M. Wächter, J. A. Freund, T. Guhr, J. Peinke   +5 more
doaj   +1 more source

Linking the Langevin equation to scaling properties of space plasma turbulence at sub-ion scales

Physical Review Research, 2023
Current understanding of the kinetic-scale turbulence in weakly collisional plasmas still remains elusive. We employ a general framework in which the turbulent energy transfer is envisioned as a scale-to-scale Langevin process.
Simone Benella, Mirko Stumpo, Tommaso Alberti, Oreste Pezzi, Emanuele Papini, Emiliya Yordanova, Francesco Valentini, Giuseppe Consolini   +7 more
doaj   +1 more source

On a class of Langevin equations in the frame of Caputo function-dependent-kernel fractional derivatives with antiperiodic boundary conditions

AIMS Mathematics, 2021
In this manuscript, we consider a class of nonlinear Langevin equations involving two different fractional orders in the frame of Caputo fractional derivative with respect to another monotonic function ϑ with antiperiodic boundary conditions.
Abdelatif Boutiara, Mohammed S. Abdo, Manar A. Alqudah, Thabet Abdeljawad   +3 more
doaj   +1 more source

Mesoscopic description of the annealed Ising model and Multiplicative noise

, 1998
A new type of Langevin equation exhibiting a non trivial phase transition associated with the presence of multiplicative noise is introduced. The equation is derived as a mesoscopic representation of the microscopic annealed Ising model (AIM) proposed by
A. Becker, A. S. Pikovsky, C. R. Doering, C. Van den Broeck, C. Van den Broeck, C. W. Gardiner, D. Amit, G. Grinstein, J. García-Ojalvo, J. García-Ojalvo, J. M. Parrondo, K. Weisenfeld, L. Onsager, M. F. Thorpe, Miguel A. Muñoz, P. C. Hohenberg, P. L. Garrido, P. Pechukas, R. Benzi, R. Müller, S. Kim, W. Genovese, W. Horsthemke, Walter Genovese, Y. Tu   +24 more
core   +1 more source

Superstatistical generalised Langevin equation: non-Gaussian viscoelastic anomalous diffusion [PDF]

, 2017
Recent advances in single particle tracking and supercomputing techniques demonstrate the emergence of normal or anomalous, viscoelastic diffusion in conjunction with non-Gaussian distributions in soft, biological, and active matter systems.
Jakub Ślęzak, R. Metzler, M. Magdziarz
semanticscholar   +1 more source

The Langevin equation

Comptes Rendus. Physique, 2017
The existence of atoms has been long predicted by philosophers and scientists. The development of thermodynamics and of the statistical interpretation of its concepts at the end of the nineteenth century and in the early years of the twentieth century made it possible to bridge the gap of scales between the macroscopic world and the world of atoms ...
Yves Pomeau, Jarosław Piasecki
openaire   +1 more source

The complex chemical Langevin equation [PDF]

The Journal of Chemical Physics, 2014
The chemical Langevin equation (CLE) is a popular simulation method to probe the stochastic dynamics of chemical systems. The CLE’s main disadvantage is its break down in finite time due to the problem of evaluating square roots of negative quantities whenever the molecule numbers become sufficiently small.
David Schnoerr, Guido Sanguinetti, Ramon Grima   +2 more
openaire   +4 more sources

The forming mechanism of spontaneous emission noise flux radiated from hydrogen-like atoms by means of vibrational Hamiltonian

AIP Advances, 2021
The main goal of this article is to investigate the origin of spontaneous emission radiation by applying a new method. In this method, the vibrational Hamiltonian of hydrogen-like atoms (HLAs) is first constructed in accordance with the Hamiltonian of a ...
J. Jahanpanah
doaj   +1 more source