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Control of dipolar collisions of polar molecules in the quantum regime

Silke Ospelkaus

APSMar 1, 20110 citations

Control of dipolar collisions of polar molecules in the quantum regime

Amodsen Chotia

Bulletin of the American Physical SocietyMar 22, 20110 citations

Observation of dipolar collisions in a near quantum-degenerate gas of polar molecules

Dajun Wang, Kang-Kuen Ni, Silke Ospelkaus +6 more

APSMar 1, 20100 citations

Ultracold chemistry and dipolar collisions in a quantum gas of polar molecules

Silke Ospelkaus, Amodsen Chotia, Marcio H. G. de Miranda +5 more

Ultracold polar molecular quantum gases promise to open new research directions ranging from the study of ultra-cold chemistry, precision measurements to novel quantum phase transitions. Based on the preparation of high-phase space density gases of polar KRb molecules [1–3], I will discuss the control of dipolar collisions and chemical reactions of polar molecules in a regime where quantum statistics, single scattering partial waves, and quantum threshold laws play a dominant role [4]. In particular, I will point out the crucial role of electric dipole-dipole interactions [5] and external confinement [6] in determining the chemical reaction rate. Finally, I will discuss prospects of reaching quantum degeneracy in bialkali samples of polar molecules and prospects for these systems as novel dipolar quantum many-body systems.Ultracold polar molecular quantum gases promise to open new research directions ranging from the study of ultra-cold chemistry, precision measurements to novel quantum phase transitions. Based on the preparation of high-phase space density gases of polar KRb molecules [1–3], I will discuss the control of dipolar collisions and chemical reactions of polar molecules in a regime where quantum statistics, single scattering partial waves, and quantum threshold laws play a dominant role [4]. In particular, I will point out the crucial role of electric dipole-dipole interactions [5] and external confinement [6] in determining the chemical reaction rate. Finally, I will discuss prospects of reaching quantum degeneracy in bialkali samples of polar molecules and prospects for these systems as novel dipolar quantum many-body systems.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)May 1, 20110 citations

Control of dipolar collisions in the quantum regime

Marcio H. G. de Miranda

Jan 1, 20103 citations

Collisional Control of Ground State Polar Molecules and Universal Dipolar Scattering

Christopher Ticknor

We explore the impact of the short-range interaction on the scattering of ground state polar molecules and study the transition from a weak to strong dipolar scattering over an experimentally reasonable range of energies and electric field values. In the strong dipolar limit, the scattering scales with respect to a dimensionless quantity defined by mass, induced dipole moment, and collision energy. The scaling has implications for all quantum mechanical dipolar scattering. Furthermore the universal scattering regime will readily be achieved with polar molecules at ultracold temperatures.We explore the impact of the short-range interaction on the scattering of ground state polar molecules and study the transition from a weak to strong dipolar scattering over an experimentally reasonable range of energies and electric field values. In the strong dipolar limit, the scattering scales with respect to a dimensionless quantity defined by mass, induced dipole moment, and collision energy. The scaling has implications for all quantum mechanical dipolar scattering. Furthermore the universal scattering regime will readily be achieved with polar molecules at ultracold temperatures.

arXiv:0711.4846Physical Review LettersApr 4, 200846 citations

Dipolar collisions of polar molecules in the quantum regime

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Dipolar collisions of polar molecules in the quantum regime

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