English
Related papers

Related papers: Maser and Laser Action with One Atom

200 papers

We show that it is possible to add or subtract many photons from a cavity field by interacting it resonantly with a two-level atom. The atom, after entangling with the field inside the cavity and exiting it, may be measured in one of the…

Simple models for lensing potentials that successfully reproduce the positions of quadruple images to high accuracy fail abysmally in reproducing the flux ratios of the multiple images, suggesting the presence of small scale structure…

Astrophysics · Physics 2007-05-23 Paul L. Schechter

A simplified theory for the wavepackets of the photons emitted during the read process of a quantum memory formed by cold atoms is provided. We arrive at analytical expressions for the single- and double-photon emissions, evidencing…

During the past century, the electromagnetic field momentum in material media has been under debate in the Abraham-Minkowski controversy as convincing arguments have been advanced in favor of both the Abraham and Minkowski forms of photon…

Quantum Physics · Physics 2017-07-17 Mikko Partanen , Teppo Häyrynen , Jani Oksanen , Jukka Tulkki

Ultracold bosonic atoms are confined by an optical lattice inside an optical resonator and interact with a cavity mode, whose wave length is incommensurate with the spatial periodicity of the confining potential. We predict that the…

Quantum Gases · Physics 2013-10-15 Hessam Habibian , André Winter , Simone Paganelli , Heiko Rieger , Giovanna Morigi

The behavior of a two level atom in a half-cavity, i.e. a cavity with one mirror, is studied within the framework of a one dimensional model with respect to spontaneous decay and resonance fluorescence. The system under consideration…

Quantum Physics · Physics 2009-11-07 U. Dorner , P. Zoller

Casimir-type forces, such as those between two neutral conducting plates, or between a sphere, atom or molecule and a plate have been widely studied and are becoming of increasing significance, for example, in nanotechnology. A key…

Quantum Physics · Physics 2014-03-24 Alvaro M. Alhambra , Achim Kempf , Eduardo Martin-Martinez

Atoms can spontaneously form spatially-ordered structures in optical resonators when they are transversally driven by lasers. This occurs when the laser intensity exceeds a threshold value and results from the mechanical forces on the atoms…

Quantum Physics · Physics 2014-11-19 Stefan Schütz , Giovanna Morigi

We establish an explicit analogy between the dynamical Casimir effect and the photon emission of a thin non-linear crystal pumped inside a cavity. This allows us to propose a system based on a type-I optical parametric oscillator (OPO) to…

Quantum Physics · Physics 2015-05-14 F. X. Dezael , A. Lambrecht

A new method to track the motion of a single particle in the field of a high-finesse optical resonator is described. It exploits near-degenerate higher-order Gaussian cavity modes, whose symmetry is broken by the phase shift on the light…

Quantum Physics · Physics 2009-11-07 P. Horak , H. Ritsch , T. Fischer , P. Maunz , T. Puppe , P. W. H. Pinkse , G. Rempe

The interaction of laser cooled and trapped atoms with resonant light is limited by the linewidth of the excited state of the atom. Another precise optical oscillator is an optical Fabry-P\'erot cavity. The combining of cold atoms with…

Optics · Physics 2017-09-19 Rahul Sawant , S. A. Rangwala

We present a quantum theory of a spaser-based nanolaser, under the bad-cavity approximation. We find first- and second-order correlation functions $g^{(1)} (\tau)$ and $g^{(2)}(\tau)$ below and above the generation threshold, and obtain the…

Mesoscale and Nanoscale Physics · Physics 2014-06-02 Vladimir M. Parfenyev , Sergey S. Vergeles

We present a detailed study of the spatial self-organization of laser-driven atoms in an optical cavity, an effect predicted on the basis of numerical simulations [P. Domokos and H. Ritsch, Phys. Rev. Lett. 89, 253003 (2002)] and observed…

Quantum Physics · Physics 2007-05-23 J. K. Asboth , P. Domokos , H. Ritsch , A. Vukics

We observe the buildup of a frequency-shifted reverse light field in a unidirectionally pumped high-$Q$ optical ring cavity serving as a dipole trap for cold atoms. This effect is enhanced and a steady state is reached, if via an optical…

Quantum Physics · Physics 2009-11-10 D. Kruse , C. von Cube , C. Zimmermann , Ph. W. Courteille

We consider N identical two-level atoms coupled to an optical cavity, which is coherently driven by an external field. In the limit of small atomic excitation, the reflection and transmission coefficients for both fields and intensities are…

Quantum Physics · Physics 2012-01-31 Brian Julsgaard , Klaus Mølmer

The advent of quantum optical techniques based on superconducting circuits has opened new regimes in the study of the non-linear interaction of light with matter. Of particular interest has been the creation of non-classical states of…

We propose to turn two resonant distant cavities effectively into one by coupling them via an optical fiber which is coated with two-level atoms [Franson et al., Phys. Rev. A 70, 062302 (2004)]. The purpose of the atoms is to destructively…

Quantum Physics · Physics 2015-05-19 Jonathan Busch , Almut Beige

Coupling electromagnetic waves in a cavity and mechanical vibrations via the radiation pressure of the photons [1,2] is a promising platform for investigations of quantum mechanical properties of motion of macroscopic bodies and thereby the…

Mesoscale and Nanoscale Physics · Physics 2015-10-16 J. -M. Pirkkalainen , S. U. Cho , F. Massel , J. Tuorila , T. T. Heikkila , P. J. Hakonen , M. A. Sillanpaa

Prospects for reaching persistent entanglement between two spatially separated atomic Bose-Einstein condensates are outlined. The system set-up comprises of two condensates loaded in an optical lattice, which, in return, is confined within…

Quantum Physics · Physics 2015-08-05 Chaitanya Joshi , Jonas Larson

We investigate correlations between orthogonally polarized cavity modes of a bimodal micropillar laser with a single layer of self-assembled quantum dots in the active region. While one emission mode of the microlaser demonstrates a…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 H. A. M. Leymann , C. Hopfmann , F. Albert , A. Foerster , M. Khanbekyan , C. Schneider , S. Höfling , A. Forchel , M. Kamp , J. Wiersig , S. Reitzenstein
‹ Prev 1 4 5 6 7 8 10 Next ›