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4 papers · 2 filters
Methyl group dynamics in a confined glass
A. J. Moreno, J. Colmenero, A. Alegría +4
We present a neutron scattering investigation on methyl group dynamics in glassy toluene confined in mesoporous silicates of different pore sizes. The experimental results have bee…
Convergent resummed linear delta expansion in the critical O(N) (ϕ_i^2)^2_{3d} model
Jean-Loic Kneur, Marcus B. Pinto, Rudnei O. Ramos
The nonperturbative linear delta expansion (LDE) method is applied to the critical O(N) phi^4 three-dimensional field theory which has been widely used to study the critical temper…
Asymptotically Improved Convergence of Optimized Perturbation Theory in the Bose-Einstein Condensation Problem
Jean-Loic Kneur, Marcus B. Pinto, Rudnei O. Ramos
We investigate the convergence properties of optimized perturbation theory, or linear expansion (LDE), within the context of finite temperature phase transitions. Our results p…
Elastic behavior in Contact Dynamics of rigid particles
Tamas Unger, Lothar Brendel, Dietrich E. Wolf +1
The systematic errors due to the practical implementation of the Contact Dynamics method for simulation of dense granular media are examined. It is shown that, using the usual iter…