Nonadiabatic effects in ultracold molecules via anomalous linear and quadratic Zeeman shifts.
Anomalously large linear and quadratic Zeeman shifts are measured for weakly bound ultracold 88Sr2 molecules near the intercombination-line asymptote. Nonadiabatic Coriolis coupling and the nature of long-range molecular potentials explain how this effect arises and scales roughly cubically with the size of the molecule. The linear shifts yield nonadiabatic mixing angles of the molecular states. The quadratic shifts are sensitive to nearby opposite f-parity states and exhibit fourth-order corrections, providing a stringent test of a state-of-the-art ab initio model.
Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027-5255, USA.
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McGuyer
Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027-5255, USA.
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Osborn
Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027-5255, USA.
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McDonald
Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027-5255, USA.
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Reinaudi
Department of Chemistry, Quantum Chemistry Laboratory, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland and Theoretische Physik, Universität Kassel, Heinrich Plett Straße 40, 34132 Kassel, Germany.
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Skomorowski
Department of Chemistry, Quantum Chemistry Laboratory, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
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Moszynski
Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027-5255, USA.
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Zelevinsky