22 citations · 122 across the 16 of their papers we have counts for
6 papers · 1 filter
Zero-energy resonances in ultracold hydrogen sticking to liquid helium films of finite thickness
R. Karakhanyan, A. Voronin, V. Nesvizhevsky +2
We investigated quantum states of ultracold hydrogen atoms in a combined potential comprising the H-He film interaction in the presence of a substrate and the Earth gravitational f…
Searching for Magnetostatic Modes in Spin-Polarized Atomic Hydrogen
Lauri Lehtonen, Otto Vainio, Janne Ahokas +4
We consider a possibility of the magnetostatic type spin waves driven by a long-range magnetic dipole interactions, to account for the peaks in the ESR spectra observed in our prev…
Spin Waves in Quantum Gases --- The Quality Factor of the Identical Spin Rotation Effect
L. Lehtonen, O. Vainio, J. Ahokas +6
Our recent experimental work on electron spin waves in atomic hydrogen gas has prompted a revisit of the theory of the Identical Spin Rotation Effect (ISRE). A key characteristic d…
Identical Spin Rotation Effect and Electron Spin Waves in Quantum Gas of Atomic Hydrogen
L. Lehtonen, O. Vainio, J. Ahokas +7
We present an experimental study of electron spin waves in atomic hydrogen gas compressed to high densities of cm at temperatures ranging from 0.26 t…
Bose-Einstein condensation of magnons in atomic hydrogen gas
O. Vainio, J. Ahokas, J. Järvinen +8
We report on experimental observation of BEC-like behaviour of quantized electron spin waves (magnons) in a dense gas of spin polarized atomic hydrogen. The magnons are trapped and…
Guiding and Trapping Electron Spin Waves in Atomic Hydrogen Gas
O. Vainio, J. Ahokas, S. Novotny +4
We present a high magnetic field study of electron spin waves in atomic hydrogen gas compressed to high densities of 10^18 cm^-3 at temperatures ranging from 0.26 to 0.6 K. We obse…