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The spin diffusion and damped oscillations are studied in the collision of two spin polarized clouds of cold atoms with resonant interactions. The strong density dependence of the diffusion coefficient leads to inhomogeneous spin diffusion…

量子气体 · 物理学 2015-06-03 H. Heiselberg

Recent work with laser-cooled molecules in attractive optical traps has shown that the differential AC Stark shifts arising from the trap light itself can become problematic, limiting collisional shielding efficiencies, rotational coherence…

原子物理 · 物理学 2022-06-08 Yukai Lu , Connor M. Holland , Lawrence W. Cheuk

We theoretically explore the effect of a transverse electric field on the frictional response of a bi-layer of packed zwitterionic molecules. The dipole-moment reorientation promoted by the electric field can lead to either stick-slip or…

软凝聚态物质 · 物理学 2024-04-16 Melisa M. Gianetti , Roberto Guerra , Andrea Vanossi , Michael Urbakh , Nicola Manini

The motion of submerged magnetic microspheres rolling at a glass-water interface has been studied using magnetic rotation and optical tweezers combined with bright-field microscopy particle tracking techniques. Individual microspheres of…

光学 · 物理学 2008-09-15 Rodney R. Agayan , Ron G. Smith , Raoul Kopelman

Polar molecules in superpositions of rotational states exhibit long-range dipolar interactions, but maintaining their coherence in a trapped sample is a challenge. We present calculations that show many laser-coolable molecules have…

We present a new mechanism for a spin blockade effect associated with a change in the type of magnetic anisotropy over oxidation state in a single molecule transistor, by taking an example of an individual Eu$_{2}$(C$_{8}$H$_{8}$)$_{3}$…

介观与纳米尺度物理 · 物理学 2016-11-23 Guangpu Luo , Kyungwha Park

A curved two dimensional electron gas with spin-orbit interactions due to the radial confinement asymmetry is considered. At certain relation between the spin-orbit coupling strength and curvature radius the tangential component of the…

介观与纳米尺度物理 · 物理学 2009-11-13 Maxim Trushin , John Schliemann

We consider collective dynamics of self-propelling particles in two dimensions. They can align themselves according to the direction of propulsion of their neighbours, together with a random perturbation (i.e. rotational fluctuation). They…

软凝聚态物质 · 物理学 2019-04-01 Shubhashis Rana , Md. Samsuzzaman , Arnab Saha

Internal states of different ions in an electrodynamic trap are coupled when a static magnetic field is applied -- analogous to spin-spin coupling in molecules used for NMR. This spin-spin interaction can be used, for example, to implement…

量子物理 · 物理学 2007-05-23 Christof Wunderlich

Using a consistent quantum-mechanical treatment for the electromagnetic radiation, we theoretically investigate the magnetic spin-flip scatterings of a neutral two-level atom trapped in the vicinity of a superconducting body. We derive a…

量子物理 · 物理学 2007-05-23 Per Kristian Rekdal , Bo-Sture K. Skagerstam , Ulrich Hohenester , Asier Eiguren

We derive the kinetic equations for the hopping transport that take into account electron spin and the possibility of double occupation. In the Ohmic regime the equations are reduced to the generalized Miller-Abrahams resistor network. We…

无序系统与神经网络 · 物理学 2015-07-03 A. V. Shumilin , V. V. Kabanov

The manipulation of single magnetic molecules may enable new strategies for high-density information storage and quantum-state control. However, progress in these areas depends on developing techniques for addressing individual molecules…

Magnetic atoms in a thin layer have repulsive interactions when their magnetic moments are aligned perpendicular to the layer. We show experimentally and theoretically how this can suppress dipolar relaxation, the dominant loss process in…

We outline a method to slow paramagnetic atoms or molecules using pulsed magnetic fields. We also discuss the possibility of producing trapped particles by adiabatic deceleration of a magnetic trap. We present numerical simulation results…

原子与分子团簇 · 物理学 2009-11-13 E. Narevicius , C. G. Parthey , A. Libson , M. F. Riedel , U. Even , M. G. Raizen

We investigate the erbium flip-flop dynamics as a limiting factor of the electron spin lifetime and more generally as an indirect source of decoherence in rare-earth doped insulators. Despite the random isotropic arrangement of dopants in…

量子物理 · 物理学 2019-10-09 B. Car , L. Veissier , A. Louchet-Chauvet , J. -L. Le Gouët , T. Chanelière

Manipulating the spin polarization of electron beams using light is highly desirable but exceedingly challenging, as the approaches proposed in previous studies using free-space light usually require enormous laser intensities. Here, we…

光学 · 物理学 2022-06-22 Deng Pan , Hongxing Xu

The subject of this study is spin transport through a molecular orbital connected to two leads, and coupled via exchange interaction with a precessing anisotropic molecular spin in a constant magnetic field. The inelastic spin-flip…

介观与纳米尺度物理 · 物理学 2025-10-02 Milena Filipović

We demonstrate feedback control optimization for the Stark deceleration and trapping of neutral polar molecules using evolutionary strategies. In a Stark-decelerator beamline pulsed electric fields are used to decelerate OH radicals and…

We study the semiclassical dynamics of a spinor condensate with the magnetic dipole-dipole interaction included. The time evolution of the population imbalance and the relative phase among different spin components depends greatly on the…

其他凝聚态物理 · 物理学 2009-11-11 Rong Cheng , J. -Q. Liang , Yunbo Zhang

We report on the first realization of a two-species magneto-optical trap (MOT) for erbium and dysprosium. The MOT operates on an intercombination line for the respective species. Owing to the narrow-line character of such a cooling…

量子气体 · 物理学 2018-03-02 P. Ilzhöfer , G. Durastante , A. Patscheider , A. Trautmann , M. J. Mark , F. Ferlaino