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We study the resonance interaction between two quantum electric dipoles immersed in optically active surroundings. Quantum electrodynamics is employed to deal with dipole-vacuum interaction. Our results show that the optical activity of…

量子物理 · 物理学 2016-06-17 Qi-Zhang Yuan , Chun-Hua Yuan , Weiping Zhang

We explore the possibility of forming a oriented polar molecule directly from a pair of colliding atoms. The process comprises the photoassociation and vibrational stabilization along with the molecular orientation. These processes are…

量子物理 · 物理学 2026-01-14 Murilo D. Forlevesi , Edson Denis Leonel , Emanuel F. de Lima

Two-photon optical transitions combined with long-range dipole-dipole interactions can be used for the coherent manipulation of collective metastable states composed of different atoms. We show that it is possible to induce optical…

量子物理 · 物理学 2007-05-23 M. D. Lukin , P. R. Hemmer

The general form of the electrostatic potential around an arbitrarily charged colloid at an interface between a dielectric and a screening phase (such as air and water, respectively) is analyzed in terms of a multipole expansion. The…

软凝聚态物质 · 物理学 2008-07-11 A. Dominguez , D. Frydel , M. Oettel

Scattering resonances are an essential tool for controlling interactions of ultracold atoms and molecules. However, conventional Feshbach scattering resonances, which have been extensively studied in various platforms, are not expected to…

The interaction of electrically charged particles in a dilute gas of point--like magnetic dipoles is studied. We show that the interaction potential at small distances has a linear piece due to overlap of the dipole clouds gathered near…

高能物理 - 理论 · 物理学 2009-10-31 M. N. Chernodub

By leveraging the hyperfine interaction between the rotational and nuclear spin degrees of freedom, we demonstrate extensive magnetic control over the electric dipole moments, electric dipolar interactions, and ac Stark shifts of…

原子物理 · 物理学 2024-01-11 Rebekah Hermsmeier , Ana Maria Rey , Timur V. Tscherbul

Quantum degenerate cold-atom gases provide a remarkable opportunity to study strongly interacting systems. Recent experimental progress in producing ultracold polar molecules with a net electric dipole moment opens up new possibilities to…

量子气体 · 物理学 2010-12-16 Roman M. Lutchyn , Enrico Rossi , S. Das Sarma

We determine trapping conditions for ultracold polar molecules, where pairs of internal states experience identical trapping potentials. Such conditions could ensure that detrimental effects of inevitable inhomogeneities across an ultracold…

原子物理 · 物理学 2015-06-12 Alexander Petrov , Constantinos Makrides , Svetlana Kotochigova

We experimentally study the spin dynamics of mesoscopic ensembles of ultracold magnetic spin-3 atoms located in two separated wells of an optical dipole trap. We use a radio-frequency sweep to selectively flip the spin of the atoms in one…

Ultracold collisions of polar OH molecules are considered in the presence of an electrostatic field. The field exerts a strong influence on both elastic and state-changing inelastic collision rate constants, leading to clear experimental…

原子物理 · 物理学 2009-11-07 Alexandr V. Avdeenkov , John L. Bohn

We develop a collisional formalism adapted for the dynamics of ultracold dipolar particles in a confined geometry and in fields tilted relative to the confinement axis. Using tesseral harmonics instead of the usual spherical harmonics to…

原子物理 · 物理学 2015-10-21 Goulven Quéméner , Maxence Lepers , Olivier Dulieu

We study a simple model consisting of an atomic ion and a polar molecule trapped in a single setup, taking into consideration their electrostatic interaction. We determine analytically their collective modes of excitation as a function of…

原子物理 · 物理学 2016-08-11 Jordi Mur-Petit , Juan José García-Ripoll

We show how state-dependent optical potentials can be used to trap a pair of molecules in different internal states at a separation much smaller than the wavelength of the trapping light. This close spacing greatly enhances the…

原子物理 · 物理学 2021-04-05 L. Caldwell , M. R. Tarbutt

Dipolar interactions are ubiquitous in nature and rule the behavior of a broad range of systems spanning from energy transfer in biological systems to quantum magnetism. Here, we study magnetization-conserving dipolar induced spin-exchange…

量子气体 · 物理学 2020-04-22 A. Patscheider , B. Zhu , L. Chomaz , D. Petter , S. Baier , A. M. Rey , F. Ferlaino , M. J. Mark

Nonperturbative coupling between cavity photons and excitons leads to formation of hybrid light-matter excitations termed polaritons. In structures where photon absorption leads to creation of excitons with aligned permanent dipoles, the…

介观与纳米尺度物理 · 物理学 2018-11-30 Emre Togan , Hyang-Tag Lim , Stefan Faelt , Werner Wegscheider , Atac Imamoglu

We study polar molecule scattering in quasi-one-dimensional geometries. Elastic and reactive collision rates are computed as a function of collision energy and electric dipole moment for different confinement strengths. The numerical…

Nonmagnetic spheres confined in a ferrofluid layer (magnetic holes) present dipolar interactions when an external magnetic field is exerted. The interaction potential of a microsphere pair is derived analytically, with a precise care for…

软凝聚态物质 · 物理学 2009-11-10 Renaud Toussaint , Jørgen Akselvoll , Eirik G. Flekkøy , Geir Helgesen , Arne T. Skjeltorp

We propose a general protocol for on-demand generation of robust entangled states of nuclear and/or electron spins of ultracold $^1\Sigma$ and $^2\Sigma$ polar molecules using electric dipolar interactions. By encoding a spin-1/2 degree of…

量子物理 · 物理学 2023-04-10 Timur V. Tscherbul , Jun Ye , Ana Maria Rey

Rydberg atoms and beams of ultracold polar molecules have become highly useful experimental tools in recent years. There is therefore a need for accessible calculations of interaction potentials between such particles and nearby surfaces…

量子物理 · 物理学 2012-03-05 Simen Å. Ellingsen , Stefan Yoshi Buhmann , Stefan Scheel