4 papers
Theory of 2D metal-insulator transition I: Zero Magnetic field
Konstantin Kladko
We propose a scaling theory of 2D metal insulator transition discovered by Kravchenko and coworkers. In this theory conductance/resistance duality is an exact relation. The exponen…
On some upper bounds for spin velocity and instability of gapless state of 1-d Heisenberg chains
Konstantin Kladko
We derive upper bounds for spin velocity in half-integer-spin Heisenberg antiferromagnetic chains. We relate these upper bounds to the instability of the gapless state, which is ob…
Einstein-Podolsky-Rosen paradox and measurement of quantum system
Konstantin Kladko
Einstein-Podolsky-Rosen (EPR) paradox is considered in a relation to a measurement of an arbitrary quantum system . It is shown that the EPR paradox always appears in a gedanken ex…
Geometrical Properties of Cumulant Expansions
K. Kladko, P. Fulde
Cumulants represent a natural language for expressing macroscopic properties of a solid. We show that cumulants are subject to a nontrivial geometry. This geometry provides an intu…