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Updated: Oct 2, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
High-fidelity rapid ground-state loading of an ultracold gas into an optical lattice
Shumpei Masuda1, Katsuhiro Nakamura2, Adolfo del Campo3
1The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, USA and Department of Physics, Tohoku University, Sendai 980, Japan.
Abstract:
A protocol is proposed for the rapid coherent loading of a Bose-Einstein condensate into the ground state of an optical lattice, without residual excitation associated with the breakdown of adiabaticity. The driving potential required to assist the rapid loading is derived using the fast-forward technique, and generates the ground state in any desired short time. We propose an experimentally feasible loading scheme using a bichromatic lattice potential, which approximates the fast-forward driving potential with high fidelity.

