publications

Andrea Montanari 1, Markus Muller 2, Marc Mézard 2 Physical Review Letters 92 (2004) 185509 We propose a new analytic approach to study the phase diagram of random heteropolymers, based on the cavity method. For copolymers we analyze the nature and phenomenology of the glass transition as a function of sequence correlations. Depending on these correlations, we find that two different […]

C. Dasgupta 1, M. Constantin 1, 2, S. Das Sarma 1, Satya N. Majumdar 3 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 69 (2004) 022101 We report the results of analytic and numerical investigations of the time scale of survival or non-zero-crossing probability $S(t)$ in equilibrium step fluctuations described by Langevin equations appropriate for attachment/detachment and edge-diffusion limited kinetics. An exact relation

Serguei Brazovskii 1 Journal de Physique IV Colloque 114 (2004) 9 Mysterious high temperature structureless transitions in (TMTTF)2X compounds have been discovered in mid 80’s (Coulon, Lawersanne,vet al), but left unexplained and abandoned, together with other warnings from structural effects (Moret, Pouget, et al), with dramatic consequences for the whole field. Recently their nature has been identified

Bogomolny, E., Schmit, C. Physical Review Letters 92 (2004) 244102-1-4

E. Bogomolny 1, C. Schmit 1 Physical Review Letters 93 (2004) 254102 Curious spectral properties of an ensemble of random unitary matrices appearing in the quantization of a map p -> p+alpha, q -> q+f(p+alpha) in [Giraud et al. nlin.CD/0403033] are investigated. When alpha=m/n with integer co-prime m,n and matrix dimension N -> infinity is such that mN =

Ayari, A., Danneau, R., Requardt, H., Ortega, L., Lorenzo, J.E., Monceau, P., Currat, R., Brazovskii, S., Gruebel, G. Physical Review Letters 93 (2004) 106404-1-4

Richard, J.F., Jacobsen, J.L., Picco, M. Journal of Physics A: Math. Gen. 37 (2004) 4939-4954

Stefan Mashkevich 1, Jan Myrheim 2, Stéphane Ouvry 3 Physics Letters A 330 (2004) 41-47 A two-dimensional quantum mechanical system consisting of a particle coupled to two magnetic impurities of different strengths, in a harmonic potential, is considered. Topological boundary conditions at impurity locations imply that the wave functions are linear combinations of two-dimensional harmonics. A number of low-lying states are

Rivoire, O. Journal of Statistical Physics 117 (2004) 453-476

Serguei Brazovskii 1, Thomas Nattermann 1 Advances In Physics 53 (2004) 177-252 The review is devoted to the theory of collective and it local pinning effects in various disordered non-linear driven systems. Although the emphasis is put on charge and spin density waves and magnetic domain walls, the theory has also applications to flux lines and lattices thereof, dislocation