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Atomic transitions with orthogonal dipole moments can be made to interfere with each other by the use of an anisotropic environment. Here we describe, provide and apply a computational toolbox capable of algorithmically designing…

量子物理 · 物理学 2021-01-13 Robert Bennett

In low energy atom-surface scattering, it is possible for the atom to be reflected in a region of attractive potential with no classical turning point. This phenomenon has come to be known as quantum reflection and it can reduce the…

原子物理 · 物理学 2023-11-28 A. L. Harris

We have demonstrated a detection scheme for atom laser beams that allows for a continuous measurement of the atom density and readout of the data in real-time. The atoms in the atom laser beam are transferred locally from the lower to the…

软凝聚态物质 · 物理学 2009-11-07 Michael Köhl , Theodor W. Hänsch , Tilman Esslinger

Optomechanical systems provide a means for studying and controlling quantum effects in the motion of macroscopic objects. To date, quantum optomechanical effects have been studied in objects made from solids and gases. Here we describe…

Under the action of pump light, the conventional photonic crystal can be turned into function photonic crystal. In the paper, we have designed optical triode with one-dimensional function photonic crystal, and analyzed the effect of period…

光学 · 物理学 2016-03-23 Xiang-Yao Wu , Ji Ma , Xiao-Jing Liu , Yu Liang , Zhi-Guo Wang

In this article we theoretically study the phase shift a single atom imprints onto a coherent state light beam in free space. The calculations are performed in a semiclassical framework. The key parameters governing the interaction and thus…

量子物理 · 物理学 2013-10-03 Markus Sondermann , Gerd Leuchs

A quantum cascade laser where the quantum wells in the active regions are replaced by quantum dots with their atom-like discrete energy levels is an interesting system to study novel features in optical spectroscopy. We study structures…

介观与纳米尺度物理 · 物理学 2009-10-31 Vadim Apalkov , Tapash Chakraborty

In this paper we present an atom laser scheme using a Raman transition for the output coupling of atoms. A beam of thermal atoms (bosons) in a metastable atomic state $|1 >$ are pumped into a multimode atomic cavity. This cavity is coupled…

atom-ph · 物理学 2016-08-31 G. M. Moy , J. J. Hope , C. M. Savage

We propose a robust and decoherence insensitive scheme to generate controllable entangled states of two three-level atoms interacting with an optical cavity and a laser beam. Losses due to atomic spontaneous transitions and to cavity decay…

量子物理 · 物理学 2007-05-23 Mahdi Amniat-Talab , Stephane Guerin , Hans-Rudolf Jauslin

Atom interferometry is the most successful technique for precision metrology. However, current interferometers using ultracold atoms allows one to probe the interference pattern only momentarily and has finite duty cycle, resulting in an…

原子物理 · 物理学 2018-10-31 Sumit Sarkar , Jay Mangaonkar , Chetan Vishwakarma , Umakant D. Rapol

In attosecond streaking, an electron is released by a short xuv pulse into a strong near infrared laser field. When the laser coupling between two states in the target is weak relative to the detuning, the streaking technique, which allows…

原子物理 · 物理学 2015-05-19 Jan Conrad Baggesen , Lars Bojer Madsen

We present and investigate different external cavity diode laser (ECDL) configurations for the manipulation of neutrals atoms, wavelength-stabilized by a narrow-band high transmission interference filter. A novel diode laser, providing high…

原子物理 · 物理学 2009-11-13 M. Gilowski , Ch. Schubert , M. Zaiser , W. Herr , T. Wübbena , T. Wendrich , T. Müller , E. M. Rasel , W. Ertmer

A strong inhomogeneous static electric field is used to spatially disperse a rotationally cold supersonic beam of 2,6-difluoroiodobenzene molecules according to their rotational quantum state. The molecules in the lowest lying rotational…

Ultracold atoms in optical lattices offer a unique platform for investigating disorder-driven phenomena. While static disordered site potentials have been explored in a number of optical lattice experiments, a more general control over…

量子气体 · 物理学 2017-09-28 Fangzhao Alex An , Eric J. Meier , Bryce Gadway

Light, being massless, casts no shadow; under ordinary circumstances, photons pass right through each other unimpeded. Here, we demonstrate a laser beam acting like an object - the beam casts a shadow upon a surface when the beam is…

We studied the coherent transport of one or two photons in a one-dimensional waveguide chirally coupled to a dissipative nonlinear cavity. The scattering amplitudes were derived analytically. With the assist of dissipation, we can realize…

量子物理 · 物理学 2026-03-10 Teng-Fei Xiao , Junlong Tian , Jie Peng

Reconfigurable neutral-atom arrays are a promising platform for quantum computing, quantum simulation, and quantum metrology, but atom transport using frequency-chirped acousto-optic deflectors (AODs) is limited by chirp-induced acoustic…

We show that nonlinear dynamics in diode lasers with optical injection leads to frequency tunable microwave sidebands which are suitable for atomic physics experiments. We demonstrate the applicability of the sidebands in an experiment…

原子物理 · 物理学 2012-07-24 C. I. Laidler , S. Eriksson

The energy spectrum for a system of atoms in a periodic potential can exhibit a gap in the band structure. We describe a system in which a laser is used to produce a mechanical potential for the atoms, and a standing wave light field is…

atom-ph · 物理学 2009-10-28 J. J. Hope , C. M. Savage

Anderson localization of particles -- the complete halt of wave transport through multiple scattering and phase coherence -- is a paradigmatic manifestation of quantum interference in disordered media. In three dimensions, the scaling…