Results 11 to 20 of about 957,985 (202)

Goldstone modes in Lyapunov spectra of hard sphere systems [PDF]

Physical Review E, 2004
In this paper, we demonstrate how the Lyapunov exponents close to zero of a system of many hard spheres can be described as Goldstone modes, by using a Boltzmann type of approach. At low densities, the correct form is found for the wave number dependence
Astrid S. de Wijn, C. Dellago, H. A. Posch, H. van Beijeren, Henk van Beijeren, J. O. Hirshfelder, S. Chapman, T. Taniguchi   +7 more
core   +5 more sources

Heterogeneous Dynamics, Marginal Stability and Soft Modes in Hard Sphere Glasses

Journal of Statistical Mechanics: Theory and Experiment, 2007
In a recent publication we established an analogy between the free energy of a hard sphere system and the energy of an elastic network [1]. This result enables one to study the free energy landscape of hard spheres, in particular to define normal modes ...
Ashcroft N, Brito C, Buisson L, Carolina Brito, Coslovich D, Duri A, Ferguson A, Keyes T, Kob W, Matthieu Wyart, Olsson P Teitel S, Phillips W A, Tarjus G, Wyart M   +13 more
core   +4 more sources

Short-wavelength collective modes in a binary hard-sphere mixture [PDF]

Physical Review A, 2006
We use hard-sphere generalized hydrodynamic equations to discuss the extended hydrodynamic modes of a binary mixture. The theory presented here is analytic and it provides us with a simple description of the collective excitations of a dense binary ...
A. Campa, B. Bernu, D. J. Evans, D. R. Nelson, E. G. D. Cohen, E. Leutheusser, H. Miyagawa, H. van Beijeren, I. M. de Schepper, I. M. de Schepper, I. M. de Schepper, J. H. Ferziger, J. J. Erpenbeck, J. J. Erpenbeck, J. J. Erpenbeck, J. M. Kincaid, J. P. Hansen, J. P. Hansen, J. R. Dorfman, K. Kawasaki, M. C. Marchetti, M. Cristina Marchetti, M. Lopez de Haro, N. K. Ailawadi, N. W. Ashcroft, P. Taborek, R. D. Mountain, S. P. Das, S. P. Das, S. Yip, Supurna Sinha, T. R. Kirkpatrick, T. R. Kirkpatrick, T. R. Kirkpatrick, T. R. Kirkpatrick, T. R. Kirkpatrick, T. R. Kirkpatrick, V. Bengtzelius, W. E. Alley, W. E. Alley, Y. Pomeau   +40 more
core   +3 more sources

Lyapunov Modes in Hard-Disk Systems [PDF]

Journal of Statistical Physics, 2005
Animated pictures are available at http://theory.physics.unige.ch/modes/ Second revised ...
Eckmann, Jean-Pierre, Forster, Christina, Posch, Harald A., Zabey, Emmanuel   +3 more
openaire   +5 more sources

Lyapunov Mode Dynamics in Hard-Disk Systems [PDF]

Journal of Statistical Physics, 2008
The tangent dynamics of the Lyapunov modes and their dynamics as generated numerically - {\it the numerical dynamics} - is considered. We present a new phenomenological description of the numerical dynamical structure that accurately reproduces the experimental data for the quasi-one-dimensional hard-disk system, and shows that the Lyapunov mode ...
Robinson, D. J., Morriss, G. P.
openaire   +2 more sources

Reaching Hard-to-Survey Populations: Mode Choice and Mode Preference [PDF]

Journal of Official Statistics, 2014
Abstract This study assesses the effect of response-mode choices on response rates, and responsemode preferences of hard-to-survey populations: young adults, full-time workers, big city inhabitants, and non-Western immigrants. Using address-based sampling, a stratified sample of 3,496 households was selected.
Haan, Marieke, Ongena, Yfke P., Aarts, Kees   +2 more
openaire   +3 more sources

Mode transformer for hard-surface waveguides [PDF]

31st European Microwave Conference, 2001, 2001
Mode transformation effect inside a corrugated circular waveguide filled with gyrotropic material, e.g., magnetoplasma or ferrite, is considered. The corrugation is in axial direction and the depth of the corrugation is a quarter wave length forming a boundary condition equal to a hard surface (HS).
Uusitupa, T., Viitanen, A.
openaire   +2 more sources

Identification and influence factors analysis of blade crack mistuning in hard-coated blisk based on modified component mode mistuning reduced-order model

Journal of Low Frequency Noise, Vibration and Active Control, 2021
Blade crack will cause severe mistuning of hard-coated blisks, which will lead to vibration localization. To identify crack mistuning and analyze influence factors, in this study, a mistuning identification method of blade cracks in hard-coated blisks is
Kunpeng Xu, Xianfei Yan, Dongxu Du, Wei Sun   +3 more
doaj   +1 more source

Reanalyzing an Evaporating Black Hole [PDF]

, 2019
A coherent picture of the quantum mechanics of a collapse-formed, evaporating black hole is presented. In a distant frame, semiclassical theory in the zone describes microscopic dynamics of only the "hard modes," the modes that are hard enough to be ...
Nomura, Yasunori
core   +2 more sources

Softest elastic mode governs materials hardness

Chinese Science Bulletin, 2014
Single-crystal elastic constants and mechanical hardness of covalent and ionic crystals have been studied using first-principles calculations. The results show that the hardness is dominated by the softest elastic mode, not by the averaged elastic moduli as generally assumed.
Rong Yu, Qi Zhang, Qian Zhan
openaire   +1 more source