26 citations · 26 across the 3 of their papers we have counts for
3 papers
cond-mat.stat-mech1998
Manifestation of classical bifurcation in the spectrum of the integrable quantum dimer
S. Aubry, S. Flach, K. Kladko +1
We analyze the classical and quantum properties of the integrable dimer problem. The classical version exhibits exactly one bifurcation in phase space, which gives birth to permuta…
cond-mat.stat-mech1997★ 26 cited
Perturbation analysis of weakly discrete kinks
S. Flach, K. Kladko
We present a perturbation theory of kink solutions of discrete Klein-Gordon chains. The unperturbed solutions correspond to the kinks of the adjoint partial differential equation.…
cond-mat.stat-mech1997
Interaction of discrete breathers with electrons in nonlinear lattices
S. Flach, K. Kladko
We study the effects of electron-lattice interaction in the presence of discrete breathers. The lattice is treated classically. We consider two different situations - i) the scatte…