Publications HAL de Wittmer

2023

Journal articles

titre
Strain correlation functions in isotropic elastic bodies: large wavelength limit for two-dimensional systems
auteur
J P Wittmer, A N Semenov, J. Baschnagel
article
Soft Matter, 2023, 19 (32), pp.6140-6156. ⟨10.1039/D3SM00424D⟩
Resume_court
Strain correlation functions in two-dimensional isotropic elastic bodies are shown both theoreticall .....
typdoc
Journal articles
DOI
DOI : 10.1039/D3SM00424D
Accès au texte intégral et bibtex
https://hal.science/hal-04181526/file/jwittmer.pdf BibTex
titre
Correlations of tensor field components in isotropic systems with an application to stress correlations in elastic bodies
auteur
J P Wittmer, A N Semenov, J. Baschnagel
article
Physical Review E , 2023, 108 (1), pp.015002. ⟨10.1103/PhysRevE.108.015002⟩
Resume_court
Correlation functions of components of second-order tensor fields in isotropic systems can be reduce .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.108.015002
Accès au texte intégral et bibtex
https://hal.science/hal-04181521/file/jwittmer.pdf BibTex

2022

Journal articles

titre
Stress Fluctuations in Glass‐Forming Systems: Elastic Response and Long‐Range Correlations
auteur
Liudmyla Klochko, Jorg Baschnagel, Joachim Wittmer, Alexander Semenov
article
Macromolecular Symposia, 2022, 405 (1), pp.2100215. ⟨10.1002/masy.202100215⟩
Resume_court
The dynamics of two model glass-formers (3D oligomer melt and 2D polydisperse colloidal system) are .....
typdoc
Journal articles
DOI
DOI : 10.1002/masy.202100215
Accès au texte intégral et bibtex
https://hal.science/hal-03839795/file/249HAL.pdf BibTex
titre
Theory of length-scale dependent relaxation moduli and stress fluctuations in glass-forming and viscoelastic liquids
auteur
L. Klochko, J. Baschnagel, J. Wittmer, H. Meyer, O. Benzerara, Alexander Semenov
article
Journal of Chemical Physics, 2022, 156 (16), pp.164505. ⟨10.1063/5.0085800⟩
Resume_court
The spatiotemporal correlations of the local stress tensor in supercooled liquids are studied both t .....
typdoc
Journal articles
DOI
DOI : 10.1063/5.0085800
Accès au texte intégral et bibtex
https://hal.science/hal-03806940/file/245hal.pdf BibTex
titre
Different types of spatial correlation functions for non-ergodic stochastic processes of macroscopic systems
auteur
Joachim Wittmer, Alexander Semenov, Jörg Baschnagel
article
European Physical Journal E: Soft matter and biological physics, 2022, 45 (8), pp.65. ⟨10.1140/epje/s10189-022-00222-1⟩
Resume_court
Focusing on non-ergodic macroscopic systems we reconsider the variances δO 2 of time averages O[x] .....
typdoc
Journal articles
DOI
DOI : 10.1140/epje/s10189-022-00222-1
Accès au texte intégral et bibtex
https://hal.science/hal-03786941/file/JWITTMER.PDF BibTex

2021

Journal articles

titre
Simple models for strictly non-ergodic stochastic processes of macroscopic systems
auteur
G. George, L. Klochko, Alexander Semenov, J. Baschnagel, J. Wittmer
article
European Physical Journal E: Soft matter and biological physics, 2021, 44 (10), pp.125. ⟨10.1140/epje/s10189-021-00129-3⟩
typdoc
Journal articles
DOI
DOI : 10.1140/epje/s10189-021-00129-3
Accès au texte intégral et bibtex
https://hal.science/hal-03786931/file/243hal.pdf BibTex
titre
Ensemble fluctuations matter for variances of macroscopic variables
auteur
G George, L Klochko, A N Semenov, J Baschnagel, J P Wittmer
article
European Physical Journal E: Soft matter and biological physics, 2021, 44 (2), pp.13. ⟨10.1140/epje/s10189-020-00004-7⟩
Resume_court
Extending recent work on stress fluctuations in complex fluids and amorphous solids we describe in g .....
typdoc
Journal articles
DOI
DOI : 10.1140/epje/s10189-020-00004-7
Accès au texte intégral et bibtex
https://hal.science/hal-03010090/file/jwittmer.pdf BibTex
titre
General relations to obtain the time-dependent heat capacity from isothermal simulations
auteur
L. Klochko, J. Baschnagel, J. P Wittmer, Alexander N Semenov
article
Journal of Chemical Physics, 2021, 154 (16), pp.164501. ⟨10.1063/5.0046697⟩
Resume_court
It is well-known that time-dependent correlation functions related to temperature and energy can cru .....
typdoc
Journal articles
DOI
DOI : 10.1063/5.0046697
Accès au texte intégral et bibtex
https://hal.science/hal-03255166/file/240auth.pdf BibTex
titre
Fluctuations of non-ergodic stochastic processes
auteur
G. George, L. Klochko, Alexander N Semenov, J. Baschnagel, J. P Wittmer
article
European Physical Journal E: Soft matter and biological physics, 2021, 44 (4), pp.54. ⟨10.1140/epje/s10189-021-00070-5⟩
Resume_court
We investigate the standard deviation δv(∆t) of the variance v[x] of time series x measured over .....
typdoc
Journal articles
DOI
DOI : 10.1140/epje/s10189-021-00070-5
Accès au texte intégral et bibtex
https://hal.science/hal-03419312/file/P2.pdf BibTex
titre
Relaxation moduli of glass-forming systems: temperature effects and fluctuations
auteur
L. Klochko, J. Baschnagel, J. Wittmer, Alexander Semenov
article
Soft Matter, In press, ⟨10.1039/D1SM00778E⟩
Resume_court
Equilibrium and dynamical properties of a two-dimensional polydisperse colloidal model system are ch .....
typdoc
Journal articles
DOI
DOI : 10.1039/D1SM00778E
Accès au texte intégral et bibtex
https://hal.science/hal-03320069/file/FDTsndrr.pdf BibTex

2020

Journal articles

titre
Composition fluctuations in polydisperse liquids: Glasslike effects well above the glass transition
auteur
Liudmyla Klochko, Jörg Baschnagel, Joachim Paul Wittmer, Olivier Benzerara, Céline Ruscher, Alexander Semenov
article
Physical Review E , 2020, 102 (4), pp.042611. ⟨10.1103/PhysRevE.102.042611⟩
Resume_court
We study a 2-dimensional glassforming system of slightly polydisperse LJ particles using MD simulati .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.102.042611
Accès au texte intégral et bibtex
https://hal.science/hal-03255091/file/237auth.pdf BibTex

2019

Journal articles

titre
Relaxation dynamics in supercooled oligomer liquids: From shear-stress fluctuations to shear modulus and structural correlations
auteur
L. Klochko, J. Baschnagel, J. Wittmer, Alexander Semenov
article
Journal of Chemical Physics, 2019, 151 (5), pp.054504. ⟨10.1063/1.5110997⟩
typdoc
Journal articles
DOI
DOI : 10.1063/1.5110997
Accès au bibtex
BibTex
titre
Relaxation dynamics in supercooled oligomer liquids: From shear-stress fluctuations to shear modulus and structural correlations
auteur
L. Klochko, J. Baschnagel, J. Wittmer, Alexander N Semenov
article
Journal of Chemical Physics, 2019, 151 (5), pp.054504. ⟨10.1063/1.5110997⟩
typdoc
Journal articles
DOI
DOI : 10.1063/1.5110997
Accès au texte intégral et bibtex
https://hal.science/hal-03560963/file/233.pdf BibTex

2018

Journal articles

titre
Shear-stress relaxation in free-standing polymer films
auteur
George G., Kriuchevsky I., Meyer H., Baschnagel J., Joachim Wittmer
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2018, ⟨10.1103/PhysRevE.98.062502⟩
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.98.062502
Accès au bibtex
BibTex
titre
Shear-stress relaxation in free-standing polymer films
auteur
G. George, I. Kriuchevskyi, H. Meyer, J. Baschnagel, J. P. Wittmer
article
Physical Review E , 2018, 98 (6), pp.062502. ⟨10.1103/PhysRevE.98.062502⟩
Resume_court
Using molecular dynamics simulation of a polymer glass model we investigate free-standing polymer fi .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.98.062502
Accès au bibtex
https://arxiv.org/pdf/1809.02535 BibTex
titre
Shear-stress fluctuations and relaxation in polymer glasses
auteur
Ivan Kriuchevskyi, Joachim P Wittmer, Hendrik Meyer, Olivier Benzerara, Jörg Baschnagel
article
Physical Review E , 2018, 97 (1), pp.012502. ⟨10.1103/PhysRevE.97.012502⟩
Resume_court
We investigate by means of molecular dynamics simulation a coarse-grained polymer glass model focusi .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.97.012502
Accès au texte intégral et bibtex
https://hal.science/hal-01872457/file/shear.pdf BibTex
titre
Shear-stress fluctuations and relaxation in polymer glasses
auteur
I. Kriuchevskyi, J. P. Wittmer, H. Meyer, O. Benzerara, J. Baschnagel
article
Physical Review E , 2018, 97 (1), pp.012502. ⟨10.1103/PhysRevE.97.012502⟩
Resume_court
We investigate by means of molecular dynamics simulation a coarse-grained polymer glass model focusi .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.97.012502
Accès au bibtex
https://arxiv.org/pdf/1711.00725 BibTex
titre
Shear-stress fluctuations and relaxation in polymer glasses
auteur
I. Kriuchevskyi, J. Wittmer, H. Meyer, O. Benzerara, J. Baschnagel
article
Physical Review E , 2018, 97 (1), pp.012502. ⟨10.1103/PhysRevE.97.012502⟩
Resume_court
We investigate by means of molecular dynamics simulation a coarse-grained polymer glass model focusi .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.97.012502
Accès au bibtex
https://arxiv.org/pdf/1711.00725 BibTex
titre
Long-range stress correlations in viscoelastic and glass-forming fluids
auteur
Alexander Semenov, L. Klochko, J. Baschnagel, J. Wittmer
article
Soft Matter, 2018, 14 (33), pp.6835-6848. ⟨10.1039/C8SM01055B⟩
Resume_court
A simple and rigorous approach to obtain stress correlations in viscoelastic liquids (including supe .....
typdoc
Journal articles
DOI
DOI : 10.1039/C8SM01055B
Accès au texte intégral et bibtex
https://hal.science/hal-03543248/file/text%2Bfigs2.pdf BibTex

2017

Journal articles

titre
Shear Modulus and Shear-Stress Fluctuations in Polymer Glasses
auteur
I. Kriuchevskyi, J.P. Wittmer, H. Meyer, J. Baschnagel
article
Physical Review Letters, 2017, 119 (14), pp.147802. ⟨10.1103/PhysRevLett.119.147802⟩
Resume_court
Using molecular dynamics simulation of a standard coarse-grained polymer glass model, we investigate .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevLett.119.147802
Accès au bibtex
BibTex
titre
Shear Modulus and Shear-Stress Fluctuations in Polymer Glasses
auteur
I. Kriuchevskyi, J. p. Wittmer, H. Meyer, J. Baschnagel
article
Physical Review Letters, 2017, 119 (14), pp.147802. ⟨10.1103/PhysRevLett.119.147802⟩
Resume_court
Using molecular dynamics simulation of a standard coarse-grained polymer glass model we investigate .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevLett.119.147802
Accès au bibtex
https://arxiv.org/pdf/1711.00736 BibTex
titre
Marginally compact fractal trees with semiflexibility
auteur
Maxim Dolgushev, Adrian L. Hauber, Philipp Pelagejcev, Joachim P. Wittmer
article
Physical Review E , 2017, 96 (1), pp.012501. ⟨10.1103/PhysRevE.96.012501⟩
Resume_court
We study marginally compact macromolecular trees that are created by means of two different fractal .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.96.012501
Accès au bibtex
https://arxiv.org/pdf/1706.07589 BibTex
titre
Marginally compact fractal trees with semiflexibility
auteur
Maxim Dolgushev, Adrian Hauber, Philipp Pelagejcev, Joachim Wittmer
article
Physical Review E , 2017, 96 (1), pp.012501. ⟨10.1103/PhysRevE.96.012501⟩
Resume_court
We study marginally compact macromolecular trees that are created by means of two different fractal .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.96.012501
Accès au bibtex
BibTex
titre
Numerical determination of shear stress relaxation modulus of polymer glasses
auteur
Ivan Kriuchevskyi, Joachim Wittmer, Olivier Benzerara, Hendrik Meyer, Jörg Baschnagel
article
European Physical Journal E: Soft matter and biological physics, 2017, 40 (4), ⟨10.1140/epje/i2017-11535-3⟩
Resume_court
Focusing on simulated polymer glasses well below the glass transition, we confirm the validity and t .....
typdoc
Journal articles
DOI
DOI : 10.1140/epje/i2017-11535-3
Accès au bibtex
BibTex
titre
Marginally compact hyperbranched polymer trees
auteur
M. Dolgushev, J. Wittmer, A. Johner, O. Benzerara, H. Meyer, J. Baschnagel
article
Soft Matter, 2017, 13 (13), pp.2499-2512. ⟨10.1039/C7SM00243B⟩
typdoc
Journal articles
DOI
DOI : 10.1039/C7SM00243B
Accès au bibtex
BibTex

2016

Journal articles

titre
Glass transition of two-dimensional 80-20 Kob-Andersen model at constant pressure
auteur
D. Li, H. Xu, J. P. Wittmer
article
Journal of Physics: Condensed Matter, 2016, 28 (4), pp.045101. ⟨10.1088/0953-8984/28/4/045101⟩
Resume_court
We reconsider numerically the two-dimensional version of the Kob-Andersen model (KA2d) with a fracti .....
typdoc
Journal articles
DOI
DOI : 10.1088/0953-8984/28/4/045101
Accès au bibtex
BibTex
titre
Simple average expression for shear-stress relaxation modulus
auteur
J. P. Wittmer, H. Xu, J. Baschnagel
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2016, 93 (1), pp.012103. ⟨10.1103/PhysRevE.93.012103⟩
Resume_court
Focusing on isotropic elastic networks we propose a simple-average expression G(t) = mu(A) - h(t) fo .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.93.012103
Accès au texte intégral et bibtex
https://hal.univ-lorraine.fr/hal-01515445/file/151001475.pdf BibTex

2015

Journal articles

titre
Shear-strain and shear-stress fluctuations in generalized Gaussian ensemble simulations of isotropic elastic networks
auteur
Joachim Paul Wittmer, Ivan Kriuchevskyi, Joerg Baschnagel, Hong Xu
article
The European Physical Journal B: Condensed Matter and Complex Systems, 2015, 88 (9), pp.242. ⟨10.1140/epjb/e2015-60506-6⟩
Resume_court
Shear-strain and shear-stress correlations in isotropic elastic bodies are investigated both theoret .....
typdoc
Journal articles
DOI
DOI : 10.1140/epjb/e2015-60506-6
Accès au bibtex
BibTex
titre
Fluctuation-dissipation relation between shear stress relaxation modulus and shear stress autocorrelation function revisited
auteur
J. P. Wittmer, H. Xu, O. Benzerara, J. Baschnagel
article
Molecular Physics, 2015, 113 (17-18, SI), pp.2881-2893. ⟨10.1080/00268976.2015.1023225⟩
Resume_court
The shear stress relaxation modulus G(t) may be determined from the shear stress (tau) over cap (t) .....
typdoc
Journal articles
DOI
DOI : 10.1080/00268976.2015.1023225
Accès au bibtex
BibTex
titre
Shear-stress relaxation and ensemble transformation of shear-stress autocorrelation functions
auteur
J. P. Wittmer, Hong Xu, J. Baschnagel
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2015, 91 (2), pp.022107. ⟨10.1103/PhysRevE.91.022107⟩
Resume_court
We revisit the relation between the shear-stress relaxation modulus G(t), computed at finite shear s .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.91.022107
Accès au texte intégral et bibtex
https://hal.univ-lorraine.fr/hal-01515835/file/PhysRevE.91.022107.pdf BibTex

2013

Journal articles

titre
Compressibility and pressure correlations in isotropic solids and fluids
auteur
J. P. Wittmer, H. Xu, P. Polinska, C. Gillig, J. Helfferich, F. Weysser, J. Baschnagel
article
European Physical Journal E: Soft matter and biological physics, 2013, 36 (11), pp.1-17. ⟨10.1140/epje/i2013-13131-y⟩
Resume_court
Presenting simple coarse-grained models of isotropic solids and fluids in d = 1 , 2 and 3 dimensions .....
typdoc
Journal articles
DOI
DOI : 10.1140/epje/i2013-13131-y
Accès au bibtex
BibTex
titre
Strictly two-dimensional self-avoiding walks: Density crossover scaling
auteur
N. Schulmann, H. Meyer, T. Kreer, A. Cavallo, A. Johner, J. Baschnagel, J. Wittmer
article
Polymer Science, Series C, Selected Topics / Vysokomolekulyarnye Soedineniya, Ser. C., 2013, 55 (1), pp.181-211. ⟨10.1134/S1811238213070072⟩
typdoc
Journal articles
DOI
DOI : 10.1134/S1811238213070072
Accès au bibtex
BibTex
titre
Communication: Pressure fluctuations in isotropic solids and fluids
auteur
J. P. Wittmer, H. Xu, P. Polinska, F. Weysser, J. Baschnagel
article
Journal of Chemical Physics, 2013, 138 (19), ⟨10.1063/1.4807305⟩
Resume_court
Comparing isotropic solids and fluids at either imposed volume or pressure, we investigate various c .....
typdoc
Journal articles
DOI
DOI : 10.1063/1.4807305
Accès au bibtex
BibTex
titre
Shear modulus of simulated glass-forming model systems: Effects of boundary condition, temperature, and sampling time
auteur
J. P. Wittmer, H. Xu, P. Polinska, F. Weysser, J. Baschnagel
article
Journal of Chemical Physics, 2013, 138 (12), pp. 12A533. ⟨10.1063/1.4790137⟩
Resume_court
The shear modulus G of two glass-forming colloidal model systems in d = 3 and d = 2 dimensions is in .....
typdoc
Journal articles
DOI
DOI : 10.1063/1.4790137
Accès au texte intégral et bibtex
https://hal.univ-lorraine.fr/hal-01517066/file/12E4790137.pdf BibTex

2012

Journal articles

titre
Strictly two-dimensional self-avoiding walks: Thermodynamic properties revisited
auteur
N. Schulmann, H. Xu, H. Meyer, P. Polińska, J. Baschnagel, P. Wittmer
article
European Physical Journal E: Soft matter and biological physics, 2012, 35 (9), ⟨10.1140/epje/i2012-12093-x⟩
typdoc
Journal articles
DOI
DOI : 10.1140/epje/i2012-12093-x
Accès au bibtex
BibTex
titre
Interchain Monomer Contact Probability in Two-Dimensional Polymer Solutions
auteur
N. Schulmann, H. Meyer, J. Wittmer, A. Johner, J. Baschnagel
article
Macromolecules, 2012, 45 (3), pp.1646-1651. ⟨10.1021/ma300085a⟩
typdoc
Journal articles
DOI
DOI : 10.1021/ma300085a
Accès au bibtex
BibTex

2011

Journal articles

titre
Note: Scale-free center-of-mass displacement correlations in polymer films without topological constraints and momentum conservation
auteur
J. Wittmer, N. Schulmann, P. Polińska, J. Baschnagel
article
Journal of Chemical Physics, 2011, 135 (18), pp.186101. ⟨10.1063/1.3662132⟩
typdoc
Journal articles
DOI
DOI : 10.1063/1.3662132
Accès au bibtex
https://arxiv.org/pdf/1110.6733 BibTex
titre
Scale-Free Static and Dynamical Correlations in Melts of Monodisperse and Flory-Distributed Homopolymers
auteur
J. Wittmer, A. Cavallo, H. Xu, J. Zabel, P. Polińska, N. Schulmann, H. Meyer, J. Farago, A. Johner, P. Obukhov, J. Baschnagel
article
Journal of Statistical Physics, 2011, 145 (4), pp.1017-1126. ⟨10.1007/s10955-011-0354-0⟩
typdoc
Journal articles
DOI
DOI : 10.1007/s10955-011-0354-0
Accès au bibtex
BibTex
titre
The structure factor of dense two-dimensional polymer solutions
auteur
H. Meyer, N. Schulmann, J.E. Zabel, J.P. Wittmer
article
Computer Physics Communications, 2011, 182 (9), pp.1949-1953. ⟨10.1016/j.cpc.2010.12.003⟩
typdoc
Journal articles
DOI
DOI : 10.1016/j.cpc.2010.12.003
Accès au bibtex
BibTex

2009

Journal articles

titre
A finite excluded volume bond-fluctuation model : Static properties of dense polymer melts revisited
auteur
J.P. Wittmer, A. Cavallo, T. Kreer, J. Baschnagel, A. Johner
article
Journal of Chemical Physics, 2009, 131 (6), pp.16. ⟨10.1063/1.3197008⟩
Resume_court
The classical bond-fluctuation model (BFM) is an efficient lattice Monte Carlo algorithm for coarse- .....
typdoc
Journal articles
DOI
DOI : 10.1063/1.3197008
Accès au bibtex
https://arxiv.org/pdf/0908.1474 BibTex
titre
Perimeter length and form factor in two-dimensional polymer melts
auteur
H. Meyer, T.T. Kreer, M. Aichele, A. Cavallo, A. Johner, J. Baschnagel, J.P. Wittmer
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2009, 79 (5), pp.050802(R). ⟨10.1103/PhysRevE.79.050802⟩
Resume_court
Self-avoiding polymers in two-dimensional ͑d =2͒ melts are known to adopt compact configurations o .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevE.79.050802
Accès au texte intégral et bibtex
https://hal.science/hal-00430828/file/PhysRevE.79.050802.pdf BibTex
titre
Perimeter length and form factor in two-dimensional polymer melts
auteur
H. Meyer, T. Kreer, M. Aichele, A. Cavallo, A. Johner, J. Baschnagel, J.P. Wittmer
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2009, 79 (5), pp.050802
typdoc
Journal articles
Accès au bibtex
BibTex

2007

Journal articles

titre
Are polymer melts "ideal"?
auteur
Joachim Wittmer, Philippe Beckrich, Francois Crevel, C.C. Huang, Anna Cavallo, Torsten Kreer, Hendrik Meyer
article
Computer Physics Communications, 2007, 177, pp.146-149
Resume_court
It is commonly accepted that in concentrated solutions or melts high-molecular weight polymers displ .....
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Why polymer chains in a melt are not random walks.
auteur
J.P. Wittmer, P. Beckrich, A. Johner, A.N. Semenov, S. Obukhov, H. Meyer, J. Baschnagel
article
EPL - Europhysics Letters, 2007, 77 (5), pp.56003
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Intramolecular Form Factor in Dense Polymer Systems: Systematic Deviations from the Debye formula
auteur
Joachim Wittmer, Philippe Beckrich, Albert Johner, Alexander N. Semenov, Sergei P. Obukhov, Hendrik Meyer, Joerg Baschnagel
article
EPL - Europhysics Letters, 2007, 77, pp.56003
Resume_court
We discuss theoretically and numerically the intramolecular form factor $F(q)$ in dense polymer syst .....
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Are polymer melts ``ideal''?
auteur
J.P. Wittmer, P. Beckrich, F. Crevel, C.C. Huang, A. Cavallo, T. Kreer, H. Meyer
article
Computer Phys. Commun., 2007, 177, pp.146-9
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Dynamic Glass Transition in Two Dimensions
auteur
Joachim Wittmer, Matthias Fuchs, M. Bayer, J. Brader, F. Ebert, E. Lange, G. Maret
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2007, 76, pp.011508
Resume_court
The question about the existence of a structural glass transition in two dimensions is studied using .....
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Intramolecular form factor in dense polymer systems: systematic deviations from the Debye formula,
auteur
P. Beckrich, A. Johner, A.N. Semenov, S.P. Obukhov, H.C. Benoit, J.P. Wittmer
article
Macromolecules, 2007, 40, pp.3805-3814
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Intramolecular long-range correlations in polymer melts: The segmental size distribution and its moments
auteur
Joachim Wittmer, Philippe Beckrich, Hendrik Meyer, Anna Cavallo, Albert Johner, Joerg Baschnagel
article
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2007, 76, pp.011803
Resume_court
Presenting theoretical arguments and numerical results we demonstrate long-range intrachain correlat .....
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Intramolecular Form Factor in Dense Polymer Systems: Systematic Deviations from the Debye formula
auteur
Joachim Wittmer, Albert Johner, Alexander N. Semenov, Sergei P. Obukhov, Henri Benoit
article
International Journal of Biological Macromolecules, 2007, 40, pp.3805-3814
Resume_court
We discuss theoretically and numerically the intramolecular form factor $F(q)$ in dense polymer syst .....
typdoc
Journal articles
Accès au bibtex
BibTex

Preprints, Working Papers, ...

titre
Static Rouse Modes and Related Quantities: Corrections to Chain Ideality in Polymer Melts
auteur
H. Meyer, J. P. Wittmer, T. Kreer, P. Beckrich, A. Johner, J. Farago, J. Baschnagel
article
2007
Resume_court
Following the Flory ideality hypothesis intrachain and interchain excluded volume interactions are s .....
typdoc
Preprints, Working Papers, ...
Accès au bibtex
https://arxiv.org/pdf/0712.0606 BibTex

2006

Book sections

titre
Reaction kinetics of coarse-grained equilibrium polymers: a Brownian Dynamics study
auteur
Joachim Wittmer, C.C. Huang, Hong Xu, Francois Crevel, Jean-Paul Ryckaert
article
Computer Simulations in Condensed Matter: from Materials to Chemical Biology, Springer, pp.379-418, 2006, ⟨10.1007/3-540-35284-8⟩
Resume_court
Self-assembled linear structures like giant cylindrical micelles or discotic molecules in solution s .....
typdoc
Book sections
DOI
DOI : 10.1007/3-540-35284-8
Accès au bibtex
BibTex

Preprints, Working Papers, ...

titre
Inhomogeneous elastic response of silica glass
auteur
Fabien Leonforte, Anne Tanguy, Joachim Wittmer, Jean-Louis Barrat
article
2006
Resume_court
Using large scale molecular dynamics simulations we investigate the properties of the {\em non-affin .....
typdoc
Preprints, Working Papers, ...
Accès au texte intégral et bibtex
https://hal.science/hal-00068895/file/draft-corr.pdf BibTex
titre
On the Dynamics and Disentanglement in Thin and Two-Dimensional Polymer Films
auteur
H. Meyer, T. Kreer, A. Cavallo, J. P. Wittmer, J. Baschnagel
article
2006
Resume_court
We present results from molecular dynamics simulations of strictly two-dimensional (2D) polymer melt .....
typdoc
Preprints, Working Papers, ...
Accès au bibtex
https://arxiv.org/pdf/cond-mat/0609127 BibTex

2005

Journal articles

titre
Continuum limit of amorphous elastic bodies. III. Three-dimensional systems
auteur
Fabien Leonforte, Rémi Boissiere, Anne Tanguy, Joachim P Wittmer, Jean-Louis Barrat
article
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2005, 72 (22), pp.224206. ⟨10.1103/PhysRevB.72.224206⟩
Resume_court
Extending recent numerical studies on two-dimensional amorphous bodies, we characterize the approach .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevB.72.224206
Accès au bibtex
BibTex
titre
Simulation numérique en physique des polymères: modélisation mésoscopique des fondus de polymères
auteur
Joachim Wittmer, Joerg Baschnagel, Thomas Vettorel, Hendrik Meyer
article
Bulletin du GFP, 2005, 100, pp.21-24
Resume_court
Dans cet article nous essayons de donner une brève introduction à la construction de modèles pour .....
typdoc
Journal articles
Accès au bibtex
BibTex
titre
Single chain structure in thin polymer films: Corrections to Flory's and Silberberg's hypotheses
auteur
A. Cavallo, M. Müller, J. P. Wittmer, A. Johner, K. Binder
article
Journal of Physics: Condensed Matter, 2005, 17, pp.1697. ⟨10.1088/0953-8984/17/20/004⟩
Resume_court
Conformational properties of polymer melts confined between two hard structureless walls are investi .....
typdoc
Journal articles
DOI
DOI : 10.1088/0953-8984/17/20/004
Accès au bibtex
https://arxiv.org/pdf/cond-mat/0412373 BibTex

Preprints, Working Papers, ...

titre
Continuum limit of amorphous elastic bodies (III): Three dimensional systems
auteur
F. Léonforte, R. Boissière, Arnaud Tanguy, J.P. Wittmer, J.-L. Barrat
article
2005
Resume_court
Extending recent numerical studies on two dimensional amorphous bodies, we characterize the approach .....
typdoc
Preprints, Working Papers, ...
DOI
DOI : 10.1103/PhysRevB.72.224206
Accès au texte intégral et bibtex
https://hal.science/hal-00004977/file/draft.pdf BibTex

2004

Journal articles

titre
Vibrations of Amorphous Nanometric structures: When does the Classical Continuum Theory apply?
auteur
Anne Tanguy, Fabien Leonforte, Joachim Wittmer, Jean-Louis Barrat
article
Applied Surface Science, 2004, 226, pp.282-288. ⟨10.1016/j.apsusc.2003.11.042⟩
Resume_court
We present in this paper an extensive study of the size dependence of the low-frequency vibrational .....
typdoc
Journal articles
DOI
DOI : 10.1016/j.apsusc.2003.11.042
Accès au bibtex
BibTex
titre
Long Range Bond-Bond Correlations in Dense Polymer Solutions
auteur
Joachim Wittmer, Hendrik Meyer, Joerg Baschnagel, Albert Johner, Sergei P. Obukhov, Laetitia Mattioni, Marcus Mueller, Alexander N. Semenov
article
Physical Review Letters, 2004, 93 (14), pp.147801. ⟨10.1103/PhysRevLett.93.147801⟩
Resume_court
The scaling of the bond-bond correlation function $C(s)$ along linear polymer chains is investigated .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevLett.93.147801
Accès au bibtex
https://arxiv.org/pdf/cond-mat/0404457 BibTex
titre
Continuum limit of amorphous elastic bodies (II): Response to a point source
auteur
F. Leonforte, Arnaud Tanguy, J.P. Wittmer, J.-L. Barrat
article
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 70, pp.014203. ⟨10.1103/PhysRevB.70.014203⟩
Resume_court
The linear response of two-dimensional amorphous elastic bodies to an external delta force is determ .....
typdoc
Journal articles
DOI
DOI : 10.1103/PhysRevB.70.014203
Accès au texte intégral et bibtex
https://hal.science/hal-00000637/file/draft2.pdf BibTex

Preprints, Working Papers, ...

titre
Monte Carlo SImulation of Polymers: Coarse-Grained Models
auteur
J. Baschnagel, J. P. Wittmer, H. Meyer
article
2004
Resume_court
A coarse-grained simulation model eliminates microscopic degrees of freedom and represents a polymer .....
typdoc
Preprints, Working Papers, ...
Accès au bibtex
https://arxiv.org/pdf/cond-mat/0407717 BibTex

2003

Journal articles

titre
Dynamical properties of the slithering-snake algorithm: A numerical test of the activated-reptation hypothesis.
auteur
L. Mattioni, J.P. Wittmer, J. Baschnagel, J.L. Barrat, E. Luijten
article
European Physical Journal E: Soft matter and biological physics, 2003, 10, pp.369-385
typdoc
Journal articles
Accès au bibtex
BibTex

1994

Journal articles

titre
Chain desorption from a semidilute polymer brush : A Monte Carlo simulation
auteur
J. Wittmer, A. Johner, J.-F. Joanny, K. Binder
article
Journal of Chemical Physics, 1994, 101 (5), pp.4379-4390. ⟨10.1063/1.468410⟩
typdoc
Journal articles
DOI
DOI : 10.1063/1.468410
Accès au bibtex
BibTex
titre
Some dynamic properties of grafted polymer layers
auteur
J. Wittmer, A. Johner, J.-F. Joanny
article
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1994, A collection of papers presented at the Polymers at Interfaces conference, held at Bristol University, 86, pp.85-89. ⟨10.1016/0927-7757(93)02675-5⟩
typdoc
Journal articles
DOI
DOI : 10.1016/0927-7757(93)02675-5
Accès au bibtex
BibTex

1993

Journal articles

titre
Charged diblock copolymers at interfaces
auteur
J. Wittmer, J.-F. Joanny
article
Macromolecules, 1993, 26 (11), pp.2691-2697. ⟨10.1021/ma00063a009⟩
typdoc
Journal articles
DOI
DOI : 10.1021/ma00063a009
Accès au bibtex
BibTex
titre
Random and Alternating Polyampholytes
auteur
J. Wittmer, A. Johner, J.-F. Joanny
article
EPL - Europhysics Letters, 1993, 24 (4), pp.263-268. ⟨10.1209/0295-5075/24/4/005⟩
typdoc
Journal articles
DOI
DOI : 10.1209/0295-5075/24/4/005
Accès au bibtex
BibTex