Massive particle interferometry with lattice solitons
Abstract
We discuss an interferometric scheme employing interference of bright solitons formed as specific bound states of attracting bosons on a lattice. We revisit the proposal of Castin and Weiss [Phys. Rev. Lett. vol. 102, 010403 (2009)] for using the scattering of a quantum matter-wave soliton on a barrier in order to create a coherent superposition state of the soliton being entirely to the left of the barrier and being entirely to the right of the barrier. In that proposal, it was assumed that the scattering is perfectly elastic, i.e.\ that the center-of-mass kinetic energy of the soliton is lower than the chemical potential of the soliton. Here we relax this assumption: By employing a combination of Bethe ansatz and DMRG based analysis of the dynamics of the appropriate many-body system, we find that the interferometric fringes persist even when the center-of-mass kinetic energy of the soliton is above the energy needed for its complete dissociation into constituent atoms.
Keywords
Cite
@article{arxiv.2210.09944,
title = {Massive particle interferometry with lattice solitons},
author = {Piero Naldesi and Juan Polo and Peter D. Drummond and Vanja Dunjko and Luigi Amico and Anna Minguzzi and Maxim Olshanii},
journal= {arXiv preprint arXiv:2210.09944},
year = {2024}
}
Comments
arXiv admin note: substantial text overlap with arXiv:2201.10479