Scientific Results

Direct Observation of Coherent Interorbital Spin-Exchange Dynamics

Year: 2014

Authors: Cappellini G., Mancini M., Pagano G., Lombardi P., Livi L., Siciliani de Cumis M., Cancio P., Pizzocaro M., Calonico D., Levi F. , Sias C., Catani J., Inguscio M., Fallani L.

Autors Affiliation: LENS European Laboratory for Nonlinear Spectroscopy, Sesto Fiorentino, 50019, Italy; Department of Physics and Astronomy, University of Florence, Sesto Fiorentino, 50019, Italy; INO-CNR Istituto Nazionale di Ottica Del CNR, Sezione di Sesto Fiorentino, Sesto Fiorentino, 50019, Italy; Scuola Normale Superiore di Pisa, Pisa, 56126, Italy; INRIM Istituto Nazionale di Ricerca Metrologica, Torino, 10135, Italy

Abstract: We report on the first direct observation of fast spin-exchange coherent oscillations between different long-lived electronic orbitals of ultracold Yb-173 fermions. We measure, in a model-independent way, the strength of the exchange interaction driving this coherent process. This observation allows us to retrieve important information on the interorbital collisional properties of Yb-173 atoms and paves the way to novel quantum simulations of paradigmatic models of two-orbital quantum magnetism.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 113 (12)      Pages from: 120402  to: 120402

More Information: We would like to acknowledge N. Fabbri, M. Fattori, C. Fort, and A. Simoni for useful discussions, F. Schafer for early experimental contributions, and Qubig GmbH for valuable support in the initial testing phase of the narrow laser setup. This work has been financially supported by EU FP7 Projects SIQS (Grant No. 600645) and SOC-2 (Grant No. 263500), MIUR Project PRIN2012 AQUASIM, and ERC Advanced Grant DISQUA (Grant No. 247371).
KeyWords: Computer simulation; Quantum chemistry; Spin dynamics, Coherent oscillations; Coherent process; Collisional properties; Direct observations; Electronic orbitals; Paradigmatic models; Quantum magnetism; Quantum simulations, Electronic document exchange
DOI: 10.1103/PhysRevLett.113.120402

Citations: 87
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