Year: 2021
Type: article
Abstract: We report on the efficient design of quantum optimal-control protocols to manipulate the motional states of an atomic Bose-Einstein condensate (BEC) in a one-dimensional optical lattice.Our protocols operate on the momentum comb associated with the lattice.In contrast to previous works also dealing with control in discrete and large Hilbert spaces, our control schemes allow us to reach a wide variety of targets by varying a single parameter, the lattice position.With this technique, we experimentally demonstrate a precise, robust, and versatile control: we optimize the transfer of the BEC to a single or multiple quantized momentum states with full control on the relative phase between the different momentum components.This also allows us to prepare the BEC in a given eigenstate of the lattice band structure, or superposition thereof.
Source: PRX Quantum
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,450
Funder: Agence Nationale de la Recherche
OpenAlex ID: W3163596307