Results 31 to 40 of about 2,101,253 (243)
Cold and ultracold molecules in the twenties
Proceedings of the Royal Society A, 2023 A diversity of experimental techniques has been developed over the last 25 years to create samples of molecular gases at temperatures close to the Absolute Zero—here we consider samples in the range from 10s of Kelvin (cold) down to 10s of nanoKelvin ...
T. Softley
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Linking Ultracold Polar Molecules [PDF]
Physical Review Letters, 2003 We predict that pairs of polar molecules can be weakly bound together in an ultracold environment, provided that a dc electric field is present. The field that links the molecules together also strongly influences the basic properties of the resulting dimer, such as its binding energy and predissociation lifetime.
Avdeenkov, A. V., Bohn, J. L.
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“Stückelberg Interferometry” with Ultracold Molecules [PDF]
Physical Review Letters, 2007 We report on the realization of a time-domain `St ckelberg interferometer', which is based on the internal state structure of ultracold Feshbach molecules. Two subsequent passages through a weak avoided crossing between two different orbital angular momentum states in combination with a variable hold time lead to high-contrast population oscillations.
Mark, M. +6 more
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Second-scale rotational coherence and dipolar interactions in a gas of ultracold polar molecules [PDF]
Nature Physics, 2023 Ultracold polar molecules combine a rich structure of long-lived internal states with access to controllable long-range anisotropic dipole–dipole interactions.
P. D. Gregory +8 more
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Photoassociation of ultracold long-range polyatomic molecules
Physical Review Research, 2021 We explore the feasibility of optically forming long-range tetratomic and larger polyatomic molecules in their ground electronic state from ultracold pairs of polar molecules aligned by external fields.
Marko Gacesa +4 more
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Ultracold Feshbach molecules in an orbital optical lattice [PDF]
Nature Physics, 2023 The realization of ultracold molecules in higher bands of an optical lattice sets the stage for the study of the interplay between orbital physics and the Bose–Einstein condensation and Bardeen–Cooper–Schrieffer superfluidity crossover.
Y. Kiefer, M. Hachmann, A. Hemmerich
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Shielding collisions of ultracold CaF molecules with static electric fields [PDF]
Physical Review Research, 2023 We study collisions of ultracold CaF molecules in strong static electric fields. These fields allow the creation of long-range barriers in the interaction potential, effectively preventing the molecules from reaching the short-range region where ...
Bijit Mukherjee +4 more
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Quantum Thermalization Dynamics of Fermi Gases Quenched to the BEC-BCS Crossover. [PDF]
Adv Sci (Weinh)This study, reporting the first experimental realization of interaction quench far faster than the Fermi timescale in fermionic many‐body systems, explores real‐time quantum thermalization dynamics in the BEC‐BCS crossover. It observes prethermal states with distinct lifetimes after quantum quench, uncovers universal prethermal scaling, and observes ...
Yi L, Yu S, Wu M, Deng S, Wu H.
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Electroassociation of Ultracold Dipolar Molecules into Tetramer Field-Linked States. [PDF]
Physical Review Letters, 2023 The presence of electric or microwave fields can modify the long-range forces between ultracold dipolar molecules in such a way as to engineer weakly bound states of molecule pairs. These so-called field-linked states [A. V. Avdeenkov and J. L.
G. Qu'em'ener, J. Bohn, J. Croft
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Complexes formed in collisions between ultracold alkali-metal diatomic molecules and atoms
New Journal of Physics, 2021 We explore the properties of three-atom complexes of alkali-metal diatomic molecules with alkali-metal atoms, which may be formed in ultracold collisions.
Matthew D Frye, Jeremy M Hutson
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