13 citations · 18 across the 5 of their papers we have counts for
5 papers
Is the supersolid superfluid
Dimitar I. Pushkarov
An analysis of previous theories of superfluidity of quantum solids is presented in relation to the nonclassical rotational moment of inertia (NCRM) found first in Kim and Chan exp…
Vacancy-Impurity Nanoclusters in Solid Solutions
Dimitar I. Pushkarov
The existence of vacancy--impurity clusters due to quantum properties of vacancies in phase separated solid solutions of 4He in 3He is analyzed and discussed. Additional mechanism…
On the unitarity of S-matrix in 1-d case
Dimitar I. Pushkarov
It is shown that the scattering S-matrix is unitary even if the scattering potential U(x) tends to different limits at plus and minus infinity. This result is in contrast to the st…
Stability of narrow beams in bulk Kerr-type nonlinear media
B. Malomed, K. Marinov, D. Pushkarov +1
We consider (2+1)-dimensional beams, whose transverse size may be comparable to or smaller than the carrier wavelength, on the basis of an extended version of the nonlinear Schrödi…
Comment on "Quantum diffusion of 3-He impurities in solid 4- He"
Dimitar I. Pushkarov
In this comment I show that the experimental data on quantum diffusion of 3-He impurities in solid 4-He can be explained using the adopted quasiparticle theory. The contention by E…