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相关论文: The D$_1$ enigma and its physical origin

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We study Bragg scattering at 1D optical lattices. Cold atoms are confined by the optical dipole force at the antinodes of a standing wave generated inside a laser-driven high-finesse cavity. The atoms arrange themselves into a chain of…

量子物理 · 物理学 2009-11-11 S. Slama , C. von Cube , A. Ludewig , M. Kohler , C. Zimmermann , Ph. W. Courteille

We present the first numerical radiative transfer simulation of multiple light scattering in dust configurations containing aligned non-spherical (spheroidal) dust grains. Such models are especially important if one wants to explain the…

天体物理学 · 物理学 2009-11-07 S. Wolf , N. V. Voshchinnikov , Th. Henning

After publishing his recent paper in SIAM J. Appl. Math, 74, 392-410, 2014 the author has realized that actually he has addressed in that paper, for the first time, a long standing open question being unaware about this. This question is…

数学物理 · 物理学 2014-04-15 Michael V. Klibanov

We reveal how to exploit joint spatial-electromagnetic duality symmetries to obtain invariant scattering properties (including extinction, scattering, absorption) of self-dual scattering systems for incident waves of arbitrary…

光学 · 物理学 2020-11-04 Qingdong Yang , Weijin Chen , Yuntian Chen , Wei Liu

Of all nuclear physics experiments none are more fundamental than ``elastic'' $p,p$ and, secondarily, $p,d$ or $d,d$ scattering. Recognizing that these particles are themselves composite, ``elastic'' scattering may be accompanied by…

加速器物理 · 物理学 2023-02-08 Richard M Talman

A solution of the scattering problem is obtained for the Schr\"odinger equation with the potential of induced dipole interaction, which decreases as the inverse square of the distance. Such a potential arises in the collision of an incident…

原子物理 · 物理学 2023-08-23 V. A. Gradusov , S. L. Yakovlev

Aims: Main goal of this work is to study the potential of He II Ly-alpha wavelength-integrated scattering polarisation for probing the magnetism of the solar upper chromosphere. Methods: Radiative transfer calculations are performed in…

太阳与恒星天体物理 · 物理学 2024-08-14 F. Riva , G. Janett , L. Belluzzi

A new approach is described to the evaluation of the S-matrix in three-dimensional atom-diatom reactive quantum scattering theory. The theory is developed based on natural collision coordinates where progress along the reaction coordinate…

化学物理 · 物理学 2007-05-23 Ashot S. Gevorkyan , Gabriel G. Balint-Kurti , Gunnar Nyman

Superradiant Raman scattering of Rubidium atoms has been explored in the experiment [Nature 484, 78 (2012)] to prove the concept of the superradiant laser, which attracts significant attentions in quantum metrology due to the expected…

量子物理 · 物理学 2024-01-02 Huihui Yu , Yuan Zhang , Gang Chen , Chongxin Shan

The theory of elastic light scattering by semiconductor quantum dots is suggested. The semiclassical method, applying retarded potentials to avoid the problem of bounder conditions for electric and magnetic field, is used. The exact results…

介观与纳米尺度物理 · 物理学 2007-05-23 I. G. Lang , L. I. Korovin , S. T. Pavlov

We present a theoretical study of elastic spin-dependent electron scattering caused by a charged impurity in the vicinity of a two-dimensional electron gas. We find that the symmetry properties of the spin-dependent differential scattering…

介观与纳米尺度物理 · 物理学 2009-01-05 A. Pályi , J. Cserti

A universal numerical method is developed for the investigation of magnetic neutron scattering. By applying the pseudospectral-time-domain (PSTD) algorithm to the spinor version of the Schr\"odinger equation, the evolution of the spin-state…

量子物理 · 物理学 2024-12-31 Kun Chen

We explore the total cross section of ground state polar molecules in an electric field at various energies, focusing on RbCs and RbK. An external electric field polarizes the molecules and induces strong dipolar interactions leading to…

原子物理 · 物理学 2009-11-13 Christopher Ticknor

The interaction of photons with relativistic electrons constitutes a fundamental electromagnetic process whose polarization transfer mechanics remain incompletely characterized. We report the first systematic measurement of spatial…

We construct a novel scattering theory to investigate magnetoelectrically induced spin polarizations. Local spin polarizations generated by electric currents passing through a spin-orbit coupled mesoscopic system are measured by an external…

介观与纳米尺度物理 · 物理学 2015-05-14 Ph. Jacquod

The ground state properties of spin-polarized deuterium (D$\downarrow$) at zero temperature are obtained by means of the diffusion Monte Carlo calculations within the fixed-node approximation. Three D$\downarrow$ species have been…

量子气体 · 物理学 2015-06-11 I. Beslic , L. Vranjes Markic , J. Casulleras , J. Boronat

The morphology of spectral line polarization is the most valuable observable to investigate the magnetic and dynamic solar atmosphere. However, in order to develop solar diagnosis, it is fundamental to understand the different kinds of…

太阳与恒星天体物理 · 物理学 2019-07-03 Edgar S. Carlin

We investigate the main physical mechanisms that shape the intensity and polarization of the Ba II D1 line at 4934 angstroms via radiative transfer numerical experiments. We focus especially on the scattering linear polarization arising…

太阳与恒星天体物理 · 物理学 2024-01-24 E. Alsina Ballester , T. del Pino Alemán , J. Trujillo Bueno

Many synthetic quantum systems allow particles to have dispersion relations that are neither linear nor quadratic functions. Here, we explore single-particle scattering in general spatial dimension $D\geq 1$ when the density of states…

量子物理 · 物理学 2021-10-20 Yidan Wang , Michael J. Gullans , Xuesen Na , Seth Whitsitt , Alexey V. Gorshkov

Scattering off a potential is a fundamental problem in quantum physics. It has been studied extensively with amplitudes derived for various potentials. In this article, we explore a setting with no potentials, where scattering occurs off a…

量子气体 · 物理学 2025-04-21 Eric Tan , R. Ganesh