Optimal preparation of quantum states on an atom-chip device

Year: 2016

Authors: Lovecchio C., Schäfer F., Cherukattil S., Alì Khan M., Herrera I., Cataliotti F.S., Calarco T., Montangero S., Caruso F.

Autors Affiliation: LENS, Università di Firenze, Via Nello Carrara 1, Sesto Fiorentino, 50019, Italy; Department of Physics, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan; Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, 3122, Australia; Dipartimento di Fisica Ed Astronomia, Università di Firenze, Via Sansone 1, Sesto Fiorentino, 50019, Italy; QSTAR, Largo Enrico Fermi 2, Firenze, 50125, Italy; Institute for Complex Quantum Systems, Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, Albert-Einstein-Allee 11, Ulm, D-89075, Germany

Abstract: Atom chips provide compact and robust platforms towards the implementation of practical quantum technologies. A quick and faithful preparation of arbitrary input states for these devices is crucial but represents a challenging experimental task. This is especially difficult when the dynamical evolution is noisy and unavoidable setup imperfections have to be considered. Here, we experimentally prepare with very high fidelity nontrivial superpositions of internal states of a rubidium Bose-Einstein condensate realized on an atom chip.


Volume: 93 (1)      Pages from: 010304-1  to: 010304-6

More Information: This work was supported by the Seventh Framework Programme for Research of the European Commission, under FET grants SIQS and RYSQ, under the CIG grant QuantumBioTech, by DFG via SFB/TRR21, and by the Italian Ministry of Education, University and Research (MIUR), under PRIN Grant No. 2010LLKJBX and FIRB Grant Agreements No. RBFR085XVZ and No. RBFR10M3SB. We thank M. Inguscio for fruitful discussions and continuous support.
KeyWords: Atoms; Bose-Einstein condensation; Statistical mechanics, Arbitrary inputs; Atom chips; Bose-Einstein condensates; Dynamical evolution; High-fidelity; Internal state; Quantum state; Quantum technologies, Quantum theory
DOI: 10.1103/PhysRevA.93.010304