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We demonstrate collectively enhanced vacuum-induced quantum beat dynamics from a three-level V-type atomic system. Exciting a dilute atomic gas of magneto-optically trapped $^{85}$Rb atoms with a weak drive resonant on one of the…

Quantum Physics · Physics 2021-08-18 Hyok Sang Han , Ahreum Lee , Kanupriya Sinha , Fredrik K. Fatemi , Steven L. Rolston

Motivated by a revision of the classical equations of electromagnetism that allow for the inclusion of solitary waves in the solution space, the material collected in these notes examines the consequences of adopting the modified model in…

General Physics · Physics 2019-09-27 Daniele Funaro

We review experimental progress on atom lasers out-coupled from Bose-Einstein condensates, and consider the properties of such beams in the context of precision inertial sensing. The atom laser is the matter-wave analog of the optical…

Quantum Gases · Physics 2015-06-11 N. P. Robins , P. A. Altin , J. E. Debs , J. D. Close

We experimentally demonstrate and systematically study the stimulated revival (echo) of motional wave packet oscillations. For this purpose, we prepare wave packets in an optical lattice by non-adiabatically shifting the potential and…

Quantum Physics · Physics 2009-11-06 F. B. J. Buchkremer , R. Dumke , H. Levsen , G. Birkl , W. Ertmer

The relationships among various parameters describing the strength of optical transitions in atoms and molecules are reviewed. The application of these parameters to the description of the interaction between nearly monochromatic,…

Atomic Physics · Physics 2007-05-23 Robert C. Hilborn

Bose-Einstein condensate of rarified atomic gases is considered as the state formed by exchange of virtual photons, resonant to the lowest levels of atoms; such representation corresponds to the Einstein opinion about an inter-influence of…

Other Condensed Matter · Physics 2008-04-14 Mark E. Perel'man

Laser cooling exploits the physics of light scattering to cool atomic and molecular gases to close to absolute zero. It is the crucial initial step for essentially all atomic gas experiments in which Bose-Einstein condensation and, more…

Quantum Gases · Physics 2022-09-05 Florian Schreck , Klaasjan van Druten

Based on the concept of extended particles recently introduced we perform a Gedankenexperiment accelerating single electrons with photons of suitably low frequency. Accounting for relativistic time dilation due to the acquired velocity and…

Quantum Physics · Physics 2007-05-23 W. A. Hofer

We demonstrate, for the first time, that laser-accelerated protons can induce shock waves in materials. The ultra-short pulse width of laser-driven protons enables them to deposit energy instantaneously, leading to an intense thermodynamic…

Plasma Physics · Physics 2025-02-25 Yanlyu Fang , Xiaoyun Le , Yang Yan , Chentong Li , Mingfeng Huang , Yiting Yan , Xueqing Yan , Chen Lin

We demonstrate and interpret a technique of laser-induced formation of thin metallic films using alkali atoms on the window of a dense-vapour cell. We show that this intriguing photo-stimulated process originates from the adsorption of Cs…

This paper discusses our recent work on developing the matter wave analogs to the Hanbury Brown Twiss experiment. We discuss experiments using cold atoms, both bosons and fermions, both coherent and incoherent. Simple concepts from…

Quantum Physics · Physics 2010-04-15 Christoph I Westbrook , Denis Boiron

Stimulated emission can be defined as the process when an incoming photon stimulates an additional quantum of energy from an atom into the same electromagnetic mode as the impinging photon. Hence, the two outgoing photons are identical. In…

Quantum Physics · Physics 2018-10-16 Kevin A. Fischer

The interaction of a short, few-cycle light pulse and an atom which is prepared initially in a superposition of two stationary states is shown to exhibit strong signatures of atomic coherence. For a given waveform of the laser pulse,…

Atomic Physics · Physics 2017-01-04 Viktor Ayadi , Mihaly G. Benedict , Peter Dombi , Peter Foldi

In the offered review ordering received and published by domestic and foreign researchers of the experimental results showing the phenomenon of a photoluminescence in glasses and optical fiber, activated by bismuth is executed, and from…

Optics · Physics 2011-09-08 Valeriy E. Ogluzdin

We propose a new acceleration mechanism for charged particles by using cylindrical or spherical non-linear acoustic waves propagating in ion-electron plasma. The acoustic wave, which is described by the cylindrical or spherical Kortweg-de…

High Energy Astrophysical Phenomena · Physics 2018-12-19 Hideki Ishihara , Ken Matsuno , Masaaki Takahashi , Syuto Teramae

We separate a Bose-Einstein condensate into an array of 2D sheets using a 1D optical lattice, and then excite quantized vibrational motion in the direction normal to the sheets. Collisions between atoms induce vibrational de-excitation,…

Other Condensed Matter · Physics 2012-12-24 I. B. Spielman , P. R. Johnson , J. H. Huckans , C. D. Fertig , S. L. Rolston , W. D. Phillips , J. V. Porto

The tendency of identical bosons to bunch, seen in the Hanbury Brown-Twiss effect and Bose-Einstein condensation, is a hallmark of quantum statistics. This bunching can enhance the rates of fundamental processes such as atom-atom and…

Upconversion of infrared photons is a promising possibility to enhance solar cell efficiency by producing electricity from otherwise unused sub-band-gap photons. We present a rate equation model, and the relevant processes, in order to…

Optics · Physics 2012-01-23 S. Fischer , H. Steinkemper , P. Löper , M. Hermle , J. C. Goldschmidt

Quantum optics has been a major driving force behind the rapid experimental developments that have led from the first laser cooling schemes to the Bose-Einstein condensation (BEC) of dilute atomic and molecular gases. Not only has it…

Quantum Physics · Physics 2016-09-08 D. Meiser , T. Miyakawa , H. Uys , P. Meystre

A recent experiment [Deng et al., Nature 398, 218(1999)] demonstrated four-wave mixing of matter wavepackets created from a Bose-Einstein condensate. The experiment utilized light pulses to create two high-momentum wavepackets via Bragg…

Statistical Mechanics · Physics 2009-10-31 Marek Trippenbach , Yehuda B. Band , Paul S. Julienne