ar X iv : c on d - m at / 0 60 20 32 v 1 1 F eb 2 00 6 Fermi surfaces and Luttinger ’ s theorem in paired fermion systems

ar X iv : c on d - m at / 9 51 00 95 v 1 1 8 O ct 1 99 5 Metamagnetism and Fermi Surface in the Anderson Lattice Model

We investigate magnetization as functions of external magnetic field H in the U-infinite Anderson lattice model within the leading order approximation in the 1/N-expansion. At T = 0, at H = H M where the Zeeman energy is equal to a certain characteristic energy in the system, the magnetization curve has a kink and the differential susceptibility dM/dH shows a jump. At finite temperature, dM/dH ...

ar X iv : c on d - m at / 0 30 74 20 17 J ul 2 00 3 Non - Fermi liquid normal state of the Heavy Fermion superconductor UBe 13

ar X iv : c on d - m at / 0 50 20 77 v 1 2 F eb 2 00 5 HIGHER MOMENTS OF NOISE

ar X iv : m at h - ph / 0 60 20 16 v 1 7 F eb 2 00 6 Magnetic Geodesic Flows on Coadjoint Orbits ∗

We describe a class of completely integrable G-invariant magnetic geodesic flows on (co)adjoint orbits of a compact connected Lie group G with magnetic field given by the Kirillov-Konstant 2-form.

ar X iv : m at h - ph / 0 60 20 11 v 1 3 F eb 2 00 6 Alternative linear structures associated with regular Lagrangians . Weyl quantization and the Von Neumann uniqueness theorem

We discuss how the existence of a regular Lagrangian description on the tangent bundle T Q of some configuration space Q allows for the construction of a linear structure on T Q that can be considered as " adapted " to the given dynamical system. The fact then that many dynamical systems admit alternative Lagrangian descriptions opens the possibility to use the Weyl scheme to quantize the syste...