TY - JOUR

T1 - Optimal control of the transport of Bose-Einstein condensates with atom chips

AU - Amri, S.

AU - Corgier, R.

AU - Sugny, D.

AU - Rasel, Ernst Maria

AU - Gaaloul, Naceur

AU - Charron, E.

N1 - Funding information: This work is supported by the DLR Space Administration with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant numbers DLR 50WM1131-1137, 50WM0940 and 50WM1240 and the “Niedersächsisches Vorab” through “Förderung von Wissenschaft und Technik in Forschung und Lehre” for the initial funding of research in the new DLR-SI Institute. N.G. acknowledges financial support of the “Niedersächsisches Vorab” through the “Quantum-and Nano-Metrology” (QUANOMET) initiative within the project QT3. S.A. and R.C were supported by mobility scholarships of the DAAD. S.A., N.G. and E.C. would like to acknowledge networking support by the COST action CA16221 “Atom Quantum Technologies”. R.C. and N.G. acknowledge mobility support from the DAAD Procope action, from the IP@Leibniz program of the LU Hanover and from the Q-SENSE project funded by the European Union’s Horizon 2020 Research and Innovation Staff Exchange (RISE) under Grant Agreement Number 691156. N.G. and E.M.R. acknowledge support from the Deutsche Forschungsgemeinschaft through CRC 1227 (DQ-mat), Project No. B07. We also acknowledge the use of the computing cluster MesoLum/GMPCS of the LUMAT research federation (FR 2764 CNRS). The authors thank Waldemar Herr, David Guéry-Odelin and Holger Ahlers for valuable discussions. The publication of this article was funded by the Open Access Fund of the Leibniz Universität Hannover.

PY - 2019/3/29

Y1 - 2019/3/29

N2 - Using Optimal Control Theory (OCT), we design fast ramps for the controlled transport of Bose-Einstein condensates with atom chips’ magnetic traps. These ramps are engineered in the context of precision atom interferometry experiments and support transport over large distances, typically of the order of 1 mm, i.e. about 1,000 times the size of the atomic clouds, yet with durations not exceeding 200 ms. We show that with such transport durations of the order of the trap period, one can recover the ground state of the final trap at the end of the transport. The performance of the OCT procedure is compared to that of a Shortcut-To-Adiabaticity (STA) protocol and the respective advantages/disadvantages of the OCT treatment over the STA one are discussed.

AB - Using Optimal Control Theory (OCT), we design fast ramps for the controlled transport of Bose-Einstein condensates with atom chips’ magnetic traps. These ramps are engineered in the context of precision atom interferometry experiments and support transport over large distances, typically of the order of 1 mm, i.e. about 1,000 times the size of the atomic clouds, yet with durations not exceeding 200 ms. We show that with such transport durations of the order of the trap period, one can recover the ground state of the final trap at the end of the transport. The performance of the OCT procedure is compared to that of a Shortcut-To-Adiabaticity (STA) protocol and the respective advantages/disadvantages of the OCT treatment over the STA one are discussed.

UR - http://www.scopus.com/inward/record.url?scp=85063741133&partnerID=8YFLogxK

U2 - 10.1038/s41598-019-41784-z

DO - 10.1038/s41598-019-41784-z

M3 - Article

C2 - 30926849

AN - SCOPUS:85063741133

VL - 9

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 5346

ER -