Une description semi-classique de la diffusion quantique
Une formule de Landau-Zener pour un croisement générique de codimension 2
Une formule d'Itô pour le mouvement brownien fermionique
Une introduction à la représentation métaplectique
Une martingale d'opérateurs bornés, non représentable en intégrale stochastique
Une remarque sur le processus :
Unified gauge theories and reduction of couplings: From finiteness to fuzzy extra dimensions.
Uniqueness of bounded observables
Universal and nonuniversal dynamical conductivity in small metallic grains: an ambivalent role of T-invariance at finite frequency.
Universal Bethe ansatz and scalar products of Bethe vectors.
Universal forms for one-dimensional quantum Hamiltonians: a comparison of the SUSY and the de la Peña factorization approaches.
Universal low temperature asymptotics of the correlation functions of the Heisenberg chain.
Universal monotonicity of eigenvalue moments and sharp Lieb–Thirring inequalities
We show that phase space bounds on the eigenvalues of Schr¨odinger operators can be derived from universal bounds recently obtained by E. M. Harrell and the author via a monotonicity property with respect to coupling constants. In particular, we provide a new proof of sharp Lieb– Thirring inequalities.
Universal -differential calculus and -analog of homological algebra.
Universal Verma modules and the Misra-Miwa Fock space.
Universality for conformally invariant intersection exponents
We construct a class of conformally invariant measures on sets (or paths) and we study the critical exponents called intersection exponents associated to these measures. We show that these exponents exist and that they correspond to intersection exponents between planar Brownian motions. More precisely, using the definitions and results of our paper [27], we show that any set defined under such a conformal invariant measure behaves exactly as a pack (containing maybe a non-integer number) of Brownian...
Upper and lower limits of sequences of observables in D-posets of fuzzy sets
Using supermodels in quantum optics.
Vacuum energy as spectral geometry.
Vacuum Structure of 2+1-Dimensional Gauge Theories
We analyse some non-perturbative properties of the Yang-Mills vacuum in two-dimensional spaces in the presence of Chern-Simons interactions. We show that the vacuum functional vanishes for some gauge field configurations. We have identified some of those nodal configurations which are characterized by the property of carrying a non-trivial magnetic charge. In abelian gauge theories this fact explains why magnetic monopoles are suppressed by Chern-Simons interactions. In non-abelian theories it suggests...