83 citations · 251 across the 20 of their papers we have counts for
20 papers
Pair correlation and dynamic Jahn-Teller effect: high Tc in nanoclusters
Vladimir Kresin, Yurii Ovchinnikov, Jacques Friedel
Electronic states in metallic nanoclusters form energy shells and degree of their filling depends on the number of delocalized electrons. In the region close to half-filling the cl…
Flat Thomas-Fermi artificial atoms
Yu. N. Ovchinnikov, Avik Halder, Vitaly V. Kresin
We consider two-dimensional (2D) "artificial atoms" confined by an axially symmetric potential . Such configurations arise in circular quantum dots and other systems effectiv…
Networks of Josephson junctions and their synchronization
Yurii Ovchinnikov, Vladimir Kresin
One can demonstrate that a 1-D Josephson network containing junctions with different resistances can be synchronized at frequencies, which are multiples of 2eV, where V is the tota…
On Spectra of Linearized Operators for Keller-Segel Models of Chemotaxis
S. I. Dejak, P. M. Lushnikov, Yu. N. Ovchinnikov +1
We consider the phenomenon of collapse in the critical Keller-Segel equation (KS) which models chemotactic aggregation of micro-organisms underlying many social activities, e.g. fr…
Josephson tunneling and nanosystems
Yurii Ovchinnikov, Vladimir Kresin
Josephson tunneling between nanoclusters is analyzed. The discrete nature of the electronic energy spectra, including their shell ordering, is explicitly taken into account. The tr…
On collapse of wave maps
Yu. N. Ovchinnikov, I. M. Sigal
We derive the universal collapse law of degree 1 equivariant wave maps (solutions of the sigma-model) from the 2+1 Minkowski space-time,to the 2-sphere. To this end we introduce a…