Poincaré-like approach to Landau theory. I. General theory

Landau-like theory of glassy dynamics.

An exact solution of a Landau model of an order-disorder transition with activated critical dynamics is presented. The model describes a funnel-shaped topology of the order parameter space in which the number of energy lowering trajectories rapidly diminishes as the ordered ground state is approached. This leads to an asymmetry in the effective transition rates which results in a nonexponential...

Landau on Number Theory 401 Landau on Number Theory

Vorlesungen iiber Zahlentheorie. By Edmund Landau. Volume I: Aus der elementaren unà additiven Zahlentheorie. xii+360 pp. Volume II: Aus der analytischen und geometrischen Zahlentheorie. vii+308 pp. Volume III : Aus der algebraischen Zahlentheorie und iiber die Fermatsche Vermutung. vii+341 pp. Leipzig, S. Hirzel, 1927. These three excellently printed and arranged volumes form an addition of th...

(0,2) Landau-ginzburg Theory ⋆

A large class of (0,2) Calabi-Yau σ-models and Landau-Ginzburg orbifolds are shown to arise as different “phases” of supersymmetric gauge theories. We find a phenomenon in the Landau-Ginzburg phase which may enable one to understand which Calabi-Yau σ-models evade destabilization by worldsheet instantons. Examples of (0,2) LandauGinzburg vacua are analyzed in detail, and several novel features ...

Superconductivity: Ginzburg-Landau Theory

The Meson Theory of Nuclear Forces I. General Theory

In this paper, the meson theory of nuclear forces is presented in a simplified way, As in Yukawa's first paper, the forces between two nuclear particles are derived directly from the field equations and the Hamiltonian of the meson field ($2,3), without quantization of the field. The charge dependence of the forces is discussed (f4) and it is found that only two assumptions are in agreement wit...