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Related papers: Cooling in a Bistable Optical Cavity

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A cold atomic gas with an inverted population on a transition coupled to a field mode of an optical resonator constitutes a generic model of a laser. For quasi-continuous operation, external pumping, trapping and cooling of the atoms is…

Quantum Physics · Physics 2019-12-10 Christoph Hotter , David Plankensteiner , Laurin Ostermann , Helmut Ritsch

We theoretically study the radiation-induced interaction between the mechanical motion of an oscillating mirror and a remotely trapped atomic cloud. When illuminated by continuous-wave radiation, the mirror motion will induce red and blue…

Quantum Physics · Physics 2018-10-26 Hoi-Kwan Lau , Alexander Eisfeld , Jan-Michael Rost

We propose a mechanism for the collective cooling of a large number N of trapped particles to very low temperatures by applying red-detuned laser fields and coupling them to the quantized field inside an optical resonator. The dynamics is…

Quantum Physics · Physics 2009-11-10 Almut Beige , Peter L. Knight , Giuseppe Vitiello

We present detailed calculations at the basis of our recent proposal for simultaneous cooling the rotational, vibrational and external molecular degrees of freedom. In this method, the molecular rovibronic states are coupled by an intense…

Quantum Physics · Physics 2007-12-10 Markus Kowalewski , Giovanna Morigi , Pepijn W. H. Pinkse , Regina de Vivie-Riedle

Laser-cooled and trapped cesium atoms have been used as a nonlinear medium in a nearly resonant cavity. A study of the semiclassical dynamics of the system was performed, showing bistability and instabilities. In the quantum domain,…

Quantum Physics · Physics 2015-06-26 A. Lambrecht , J. M. Courty , S. Reynaud , E. Giacobino

Cavity-mediated cooling of the center--of--mass motion of a transversally, coherently pumped atom along the axis of a high--Q cavity is studied. The internal dynamics of the atomic dipole strongly coupled to the cavity field is treated by a…

Quantum Physics · Physics 2007-05-23 Peter Domokos , Thomas Salzburger , Helmut Ritsch

The rich internal structure and long-range dipole-dipole interactions establish polar molecules as unique instruments for quantum-controlled applications and fundamental investigations. Their potential fully unfolds at ultracold…

Optical cavity cooling of mechanical resonators has recently become a research frontier. The cooling has been realized with a metal-coated silicon microlever via photo-thermal force and subsequently with dielectric objects via radiation…

Mesoscale and Nanoscale Physics · Physics 2010-11-23 K. Usami , A. Naesby , T. Bagci , B. Melholt Nielsen , J. Liu , S. Stobbe , P. Lodahl , E. S. Polzik

We present a study of Sisyphus cooling of molecules: the scattering of a single-photon remove a substantial amount of the molecular kinetic energy and an optical pumping step allow to repeat the process. A review of the produced cold…

Chemical Physics · Physics 2014-04-11 Daniel Comparat

The laser cooling of atoms is a result of the combined effect of doppler shift, light shift and polarization gradient. These are basically undesirable phenomena. However, they combine gainfully in realizing laser cooling and trapping of the…

Quantum Physics · Physics 2009-11-13 G. M. Saxena , A. Agarwal

Laser cooling has given a boost to atomic physics throughout the last thirty years since it allows one to prepare atoms in motional states which can only be described by quantum mechanics. Most methods, such as Doppler cooling, polarization…

Quantum Physics · Physics 2017-06-19 Peter Asenbaum , Stefan Kuhn , Stefan Nimmrichter , Ugur Sezer , Markus Arndt

A cooling scheme for trapped atoms is proposed, which combines cavity-enhanced scattering and electromagnetically induced transparency. The cooling dynamics exploits a three-photon resonance, which combines laser and cavity excitations. It…

Quantum Physics · Physics 2012-02-03 Marc Bienert , Giovanna Morigi

In a recent paper, we have proposed a novel laser cooling scheme for reducing collisional energy of a pair of atoms by using photoassociative transitions. In that paper, we considered two atoms in free space, that is we have not considered…

Atomic Physics · Physics 2017-03-22 Somnath Naskar , Subrata Saha , Partha Goswami , Arpita pal , Bimalendu Deb

We propose a novel cooling scheme for realising single photon sideband cooling on particles trapped in a state-dependent optical potential. We develop a master rate equation from an ab-initio model and find that in experimentally feasible…

Quantum Gases · Physics 2022-02-11 Federico Berto , Elia Perego , Lucia Duca , Carlo Sias

A pulsed cooling scheme for optomechanical systems is presented that is capable of cooling at much faster rates, shorter overall cooling times, and for a wider set of experimental scenarios than is possible by conventional methods. The…

Generating entanglement by simply cooling a system into a stationary state which is highly entangled has many advantages. Schemes based on this idea are robust against parameter fluctuations, tolerate relatively large spontaneous decay…

Quantum Physics · Physics 2015-05-28 J. Busch , S. De , S. S. Ivanov , B. T. Torosov , T. P. Spiller , A. Beige

We predict concurrent selforganisation and cooling of multispecies ensembles of laser-illuminated polarisable particles within a high-Q cavity mode. Resonant collective scattering of laser light into the cavity creates optical potentials…

Quantum Physics · Physics 2012-11-29 Tobias Grießer , Wolfgang Niedenzu , Helmut Ritsch

We extend an earlier semiclassical model to describe the dissipative motion of N atoms coupled to M modes inside a coherently driven high-finesse cavity. The description includes momentum diffusion via spontaneous emission and cavity decay.…

Quantum Physics · Physics 2009-11-07 Peter Horak , Helmut Ritsch

Laser cooling of the atomic motion paved the way for remarkable achievements in the fields of quantum optics and atomic physics, including Bose-Einstein condensation and the trapping of atoms in optical lattices. More recently…

We propose, in a Ramsey interferometer, to cool the cavity field to its ground state, starting from a thermal distribution by a dispersive atom-field coupling followed by an atomic postselection. We also analyze the effect of the cavity and…

Quantum Physics · Physics 2019-04-18 Felipe Oyarce , Miguel Orszag