arXiv subjects

Gustavo A. Moreno

Publications and source records attributed to Gustavo A. Moreno.

2 recordsLinked to original sources

arXiv2010

Bragg spectroscopy for measuring Casimir-Polder interactions with Bose-Einstein condensates above corrugated surfaces

We propose a method to probe dispersive atom-surface interactions by measuring via two-photon Bragg spectroscopy the dynamic structure factor of a Bose-Einstein condensate above corrugated surfaces. This method takes advantage of the condensate coherence to reveal the spatial Fourier components of the lateral Casimir-Polder interaction energy.

quant-ph↗

arXiv2009

High-momentum tail in the Tonks-Girardeau gas under general confining potentials

We prove that the ground state momentum distribution of a one-dimensional system of impenetrable bosons exhibits a $k^{-4}$ tail for any confining potential. We also derive an expression for easily computing the asymptotic occupation numbers and verify our results with an exact numerical approach.

cond-mat.quant-gas↗