2003

Denis Ullmo 1, 2, Tatsuro Nagano 3, Steven Tomsovic 3 Physical Review Letters 90 (2003) 176801 We consider how the nature of the dynamics affects ground state properties of ballistic quantum dots. We find that « mesoscopic Stoner fluctuations », that arise from the residual screened Coulomb interaction, are very sensitive to the degree of chaos. It leads to ground state energies and spin-polarizations […]

Serguei Brasovskii 1, Sergey I. Matveenko 1, 2 JETP Letters 96 (2003) 555 We consider pseudogap effects for electrons interacting with gapless modes. We study both generic 1D semiconductors with acoustic phonons and incommensurate charge density waves. We calculate the subgap absorption as it can be observed by means of the photo electron or tunneling spectroscopy. Within the formalism of functional

Leboeuf, P. Annales Henri Poincaré 4 (2003) 635-660

Krivine, H., Lesne, A. American Journal of Physics 71 (2003) 31-33

Mezard, M. Sciences 301 (2003) 1686

Dotsenko, Vl.S., Jacobsen, J.L., Santachiara, R. Nuclear Physics B 664 (2003) 477-511

Dotsenko, Vl.S., Jacobsen, J.L., Santachiara, R. Nuclear Physics B 656 (2003) 259-324

Matteo Palassini 1, Marta Sales 2, Felix Ritort 3 Physical Review B 68 (2003) 224430 We present a numerical study of the order-parameter fluctuations for Ising spin glasses in three and four dimensions at very low temperatures and without an external field. Accurate measurements of two previously introduced parameters, A and G, show that the order parameter is not self-averaging, consistent

Andrea Cavagna 1, Irene Giardina 1, Giorgio Parisi 1, Marc Mézard 2 Journal of Physics A 36 (2003) 1175-1194 We revisit two classic Thouless-Anderson-Palmer (TAP) studies of the Sherrington-Kirkpatrick model [Bray A J and Moore M A 1980 J. Phys. C 13, L469; De Dominicis C and Young A P, 1983 J. Phys. A 16, 2063]. By using the Becchi-Rouet-Stora-Tyutin (BRST) supersymmetry, we

Paul Zinn-Justin 1, Jean-Bernard Zuber 2 Journal of Physics A 36 (2003) 3173-3194 The integral over the U(N) unitary group $I=\int DU \exp\Tr A U B U^\dagger$ is reexamined. Various approaches and extensions are first reviewed. The second half of the paper deals with more recent developments: relation with integrable Toda lattice hierarchy, diagrammatic expansion and combinatorics, and on