283 citations
4 papers
Trace formula and spectral Riemann surfaces for a class of tri-diagonal matrices
Plamen Djakov, Boris Mityagin
For tri-diagonal matrices arising in the simplified Jaynes--Cummings model, we give an asymptotics of the eigenvalues, prove a trace formula and show that the Spectral Riemann Surf…
Fine Structure of the Radial Breathing Mode in Double-Wall Carbon Nanotubes
R. Pfeiffer, F. Simon, H. Kuzmany +1
The analysis of the Raman scattering cross section of the radial breathing modes of double-wall carbon nanotubes allowed to determine the optical transitions of the inner tubes. Th…
Observation of attraction between dark solitons
Alexander Dreischuh, Dragomir N. Neshev, Dan E. Petersen +2
We demonstrate a dramatic change in the interaction forces between dark solitons in nonlocal nonlinear media. We present what we believe is the first experimental evidence of attra…
Calibrated Tully-Fisher relations for edge-on galaxies in the BVRI system
O. Stanchev, P. Nedialkov, Ts. Georgiev
Calibrated Tully-Fisher relations ''absolute magnitude - HI line width'' for spiral galaxies oriented edge-on are derived from published data. The slope of the linear fits, especia…