Velocity weakening friction: A renormalization approach

1996 ◽  
Vol 101 (B6) ◽  
pp. 13911-13917 ◽  
Author(s):  
Jean Schmittbuhl ◽  
Jean-Pierre Vilotte ◽  
Stéphane Roux
Keyword(s):  
Renormalization Approach

Influence of the Morphology on the Optical Properties of Nanocermet Films: A Renormalization Approach

1990 ◽  
Vol 195 ◽  
Author(s):  
S. Berthier ◽  
K. Driss-Khodja
Keyword(s):  
Optical Properties ◽  
Critical Exponents ◽  
Inhomogeneous Media ◽  
Experimental Results ◽  
Percolation Transition ◽  
Position Space ◽  
Renormalization Approach ◽  
2D And 3D ◽  
Good Agreement ◽  
Effective Medium Models

ABSTRACTIn order to take into account the actual morphology of the inhomogeneous media, we have developed, effective medium models based on a 2D and 3D position space renormalization /1,2/. These models predict the dipolar resonance and the percolation transition with critical exponents in good agreement with theoretical values and fairly reproduce most of the experimental results, whatever the concentration is. Further more, this allows a valuable comparison of the predictions of our models when applied on different lattices like real digitized TEM of cermet films or randomly occupied lattices.

Chaotic renormalization approach to electronic systems

1984 ◽  
Vol 29 (5) ◽  
pp. 2808-2810 ◽  
Author(s):  
Paulo Murilo Oliveira ◽  
Mucio A. Continentino ◽  
Enrique V. Anda
Keyword(s):  
Electronic Systems ◽  
Renormalization Approach

scholarly journals Implicit renormalization approach to the problem of Cooper instability

2019 ◽  
Vol 100 (6) ◽  
Author(s):  
Andrey Chubukov ◽  
Nikolay V. Prokof'ev ◽  
Boris V. Svistunov
Keyword(s):  
Renormalization Approach ◽  
Cooper Instability

scholarly journals Renormalization approach to constituent quark models of quarkonium

2012 ◽  
Vol 85 (7) ◽  
Author(s):  
J. Segovia ◽  
D. R. Entem ◽  
F. Fernández ◽  
E. Ruiz Arriola
Keyword(s):  
Constituent Quark ◽  
Quark Models ◽  
Renormalization Approach

scholarly journals Cooperative spontaneous emission via a renormalization approach: Classical versus semiclassical effects

2020 ◽  
Vol 101 (2) ◽  
Author(s):  
C. E. Máximo ◽  
R. Bachelard ◽  
F. E. A. dos Santos ◽  
C. J. Villas-Boas
Keyword(s):  
Spontaneous Emission ◽  
Renormalization Approach

scholarly journals Effective viscosity of puller-like microswimmers: a renormalization approach

2013 ◽  
Vol 10 (89) ◽  
pp. 20130720 ◽  
Author(s):  
Simon Gluzman ◽  
Dmitry A. Karpeev ◽  
Leonid V. Berlyand
Keyword(s):  
Renormalization Group ◽  
Critical Point ◽  
Effective Viscosity ◽  
Collective Motion ◽  
Analytical Determination ◽  
Renormalization Approach ◽  
Theoretical Results ◽  
Better Than ◽  
Passive Suspensions

Effective viscosity (EV) of suspensions of puller-like microswimmers (pullers), for example Chlamydamonas algae, is difficult to measure or simulate for all swimmer concentrations. Although there are good reasons to expect that the EV of pullers is similar to that of passive suspensions, analytical determination of the passive EV for all concentrations remains unsatisfactory. At the same time, the EV of bacterial suspensions is closely linked to collective motion in these systems and is biologically significant. We develop an approach for determining analytical EV estimates at all concentrations for suspensions of pullers as well as for passive suspensions. The proposed methods are based on the ideas of renormalization group (RG) theory and construct the EV formula based on the known asymptotics for small concentrations and near the critical point (i.e. approaching dense packing). For passive suspensions, the method is verified by comparison against known theoretical results. We find that the method performs much better than an earlier RG-based technique. For pullers, the validation is done by comparing them to experiments conducted on Chlamydamonas suspensions.

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