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We report adjustable magnetic `bouncing' and focusing of a dilute $^{87}$Rb Bose gas. Both the condensate production and manipulation are realised using a particularly straight-forward apparatus. The bouncing region is comprised of…

Soft Condensed Matter · Physics 2009-11-10 A. S. Arnold , C. MacCormick , M. G. Boshier

We present experimental results and theoretical analysis of the diffuse reflection of a Bose-Einstein condensate from a rough mirror. The mirror is produced by a blue-detuned evanescent wave supported by a dielectric substrate. The results…

Quantum Physics · Physics 2016-08-16 Hélène Perrin , Yves Colombe , Brigitte Mercier , Vincent Lorent , Carsten Henkel

We present experimental results showing the diffuse reflection of a Bose-Einstein condensate from a rough mirror, consisting of a dielectric substrate supporting a blue-detuned evanescent wave. The scattering is anisotropic, more pronounced…

Atomic Physics · Physics 2007-11-11 Helene Perrin , Yves Colombe , Brigitte Mercier , Vincent Lorent , Carsten Henkel

The use of off-resonant standing light waves to manipulate ultracold atoms is investigated. Previous work has illustrated that optical pulses can provide efficient beam-splitting and reflection operations for atomic wave packets. The…

Other Condensed Matter · Physics 2007-06-19 K. J. Hughes , B. Deissler , J. H. T. Burke , C. A. Sackett

The atom optics of Bose-Einstein condensates containing a vortex of circulation one is discussed. We first analyze in detail the reflection of such a condensate falling on an atomic mirror. In a second part, we consider a rotating…

Soft Condensed Matter · Physics 2007-05-23 I. Josopait , L. Dobrek , L. Santos , A. Sanpera , M. Lewenstein

We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity (1e18 < I_0 < 1e19 W/cm^2) by near-normally incident (4…

We have observed the diffraction of a Bose-Einstein condensate of rubidium atoms on a vibrating mirror potential. The matter wave packet bounces back at normal incidence on a blue-detuned evanescent light field after a 3.6 mm free fall. The…

Quantum Physics · Physics 2016-08-16 Yves Colombe , Brigitte Mercier , Hélène Perrin , Vincent Lorent

We have created a $^{87}$Rb Bose-Einstein condensate in a magnetic trapping potential produced by a hard disk platter written with a periodic pattern. Cold atoms were loaded from an optical dipole trap and then cooled to BEC on the surface…

Reaching light intensities above $10^{25}$ W/cm$^{2}$ and up to the Schwinger limit ($10^{29}$ W/cm$^{2}$) would enable testing decades-old fundamental predictions of Quantum Electrodynamics. A promising yet challenging approach to achieve…

Optics · Physics 2020-07-13 L. Chopineau , A. Denoeud , A. Leblanc , E. Porat , Ph. Martin , H. Vincenti , F. Quéré

The dynamics of a two-soliton molecule bouncing on the reflecting atomic mirror under the effect of gravity has been studied by analytical and numerical methods. The analytical description is based on the variational approximation. In…

Quantum Gases · Physics 2019-12-20 Kh. P. Khamrakulov

It is shown that simultaneously changing the scattering length of an elongated, harmonically trapped Bose-Einstein condensate from positive to negative and inverting the axial portion of the trap, so that it becomes expulsive, results in a…

Soft Condensed Matter · Physics 2009-11-10 L. D. Carr , J. Brand

We report on the creation of a two-dimensional Bose-Einstein condensate of cesium atoms in a gravito-optical surface trap. The condensate is produced a few micrometer above a dielectric surface on an evanescent-wave atom mirror. After…

Soft Condensed Matter · Physics 2007-05-23 D. Rychtarik , B. Engeser , H. -C. Nägerl , R. Grimm

We propose a novel type of composite light-matter magnetometer based on a transversely driven multi-component Bose-Einstein condensate coupled to two distinct electromagnetic modes of a linear cavity. Above the critical pump strength, the…

Quantum Physics · Physics 2021-05-26 Karol Gietka , Farokh Mivehvar , Thomas Busch

Cold atomic clouds and Bose-Einstein condensates have been stored in a 10cm diameter vertically-oriented magnetic ring. An azimuthal magnetic field enables low-loss propagation of atomic clouds over a total distance of 2m, with a heating…

Other Condensed Matter · Physics 2007-05-23 A. S. Arnold , C. S. Garvie , E. Riis

In this article, we present theoretical as well as experimental results on resonantly enhanced tunneling of Bose-Einstein condensates in optical lattices both in the linear case and for small nonlinearities. Our results demonstrate the…

Exceptional pulse contrast can be critical for ultraintense laser experiments, particularly when using solid density targets, and their use is becoming widespread. However, current plasma mirror technology is becoming inadequate for the new…

A scheme based on electromagnetically induced transparency is used to store light in a Bose-Einstein condensate. In this process, a photonic polarization qubit is stored in atomic Zeeman states. The performance of the storage process is…

Quantum Physics · Physics 2012-02-15 Stefan Riedl , Matthias Lettner , Christoph Vo , Simon Baur , Gerhard Rempe , Stephan Dürr

Bose-Einstein condensate (BEC)-based atom interferometry exploits low temperatures and long coherence lengths to facilitate high-precision measurements. Progress in atom interferometry promises improvements in navigational devices like…

Quantum Gases · Physics 2021-11-25 Mary Clare Cassidy , Malcolm G. Boshier , Lee E. Harrell

A bent-crystal mirror has been used to focus an atomic helium beam. The mirror is made from gold deposited onto a mica substrate to form a thin film (~5000 {\AA} thick) of large single crystal domains (domain size ~4000 {\AA} ). The mica…

Instrumentation and Detectors · Physics 2022-01-19 R. Bruce Doak

Magnetically and optically confined Bose-Einstein condensates were studied near a microfabricated surface. Condensate fragmentation observed in microfabricated magnetic traps was not observed in optical dipole traps at the same location.…

Soft Condensed Matter · Physics 2009-11-07 A. E. Leanhardt , Y. Shin , A. P. Chikkatur , D. Kielpinski , W. Ketterle , D. E. Pritchard
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