Thermal non-equilibrium effects in quantum reflection
Viola Druzhinina, Marcel Mudrich, Florian Arnecke, Javier, Madronero, Andreas Buchleitner
TL;DR
This paper demonstrates that the quantum reflection of ultracold heavy atoms from a dielectric surface can be controlled by adjusting surface and environment temperatures, due to temperature-dependent long-range interactions.
Contribution
It reveals how temperature influences atom-surface interactions, enabling tuning of quantum reflection coefficients through environmental and surface temperature control.
Findings
Quantum reflection coefficient varies with temperature.
Long-range repulsive potential depends on temperature.
Control over atom-surface interactions via temperature adjustments.
Abstract
We show that the quantum reflection coefficient of ultracold heavy atoms scattering off a dielectric surface can be tuned in a wide range by suitable choice of surface and environment temperatures. This effect results from a temperature dependent long-range repulsive part of the van der Waals-Casimir-Polder-Lifshitz atom-surface interaction potential.
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