Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2025

Volume:

18

Number:

3

ISSN:

1829-1171

Official URL:

Coverage:

25-30

Abstract:

We study quantum gravitational states of ultracold hydrogen atoms in a combined potential consisting of H – 4He surface interaction potential and gravitational potential of the Earth. The key feature of this system is the dramatic separation of spatial (~104) and energy (~10-9) scales between potential components. We show that due to this separation, the influence of H – 4He surface interaction on gravitational states can be described with high accuracy by a boundary condition at zero, expressed through the scattering length. Our main result is the analysis of the near-resonant case, where the scattering length becomes large, revealing pronounced effects on gravitational states and highlighting the novel physical regimes accessible in this system.

Format:

pdf

Identifier:

oai:arar.sci.am:415684

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան