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Cavity-mediated cooling has the potential to become one of the most efficient techniques to cool molecular species down to very low temperatures. In this paper we analyse cavity cooling with single-laser driving for relatively large cavity…

Quantum Physics · Physics 2015-05-19 Tony Blake , Andreas Kurcz , Almut Beige

This paper analyses the cooling of a single particle in a harmonic trap with red-detuned laser light with fewer approximations than previously done in the literature. We avoid the adiabatic elimination of the excited atomic state but are…

Quantum Physics · Physics 2015-05-27 Tony Blake , Andreas Kurcz , Norah S. Saleem , Almut Beige

Laser cooling methods for trapped ions are most commonly studied at low energies, i.e., in the Lamb-Dicke regime. However, ions in experiments are often excited to higher energies for which the Lamb-Dicke approximation breaks down. Here we…

We study the laser cooling of a mechanical oscillator through the coupling with a dissipative three-level system. Under a background temperature beyond the Lamb-Dicke regime, we extend the standard cooling analysis by separately studying…

Quantum Physics · Physics 2016-08-08 Hoi-Kwan Lau , Martin B. Plenio

We present a microscopic laser model for many atoms coupled to a single cavity mode, including the light forces resulting from atom-field momentum exchange. Within a semiclassical description, we solve the equations for atomic motion and…

Quantum Physics · Physics 2007-12-18 Thomas Salzburger Helmut Ritsch

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

Laser cooling is theoretically investigated in a cascade three-level scheme, where the excited state of a laser-driven transition is coupled by a second laser to a top, more stable level, as for alkali-earth atoms. The second laser action…

Quantum Physics · Physics 2013-05-29 Giovanna Morigi , Ennio Arimondo

We study laser cooling of two ions that are trapped in a harmonic potential and interact by Coulomb repulsion. Sideband cooling in the Lamb-Dicke regime is shown to work analogously to sideband cooling of a single ion. Outside the…

Quantum Physics · Physics 2014-11-18 G. Morigi , J. Eschner , J. I. Cirac , P. Zoller

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

A laser cooling method for trapped atoms is described which achieves ground state cooling by exploiting quantum interference in a driven Lambda-shaped arrangement of atomic levels. The scheme is technically simpler than existing methods of…

Quantum Physics · Physics 2010-03-26 Giovanna Morigi , Juergen Eschner , Christoph H. Keitel

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

Trapped ion in the Lamb-Dicke regime with the Lamb-Dicke parameter $\eta\ll1$ can be cooled down to its motional ground state using sideband cooling. Standard sideband cooling works in the weak sideband coupling limit, where the sideband…

Quantum Physics · Physics 2021-04-30 Shuo Zhang , Jian-Qi Zhang , Wei Wu , Wan-Su Bao , Chu Guo

We investigate laser cooling of an ensemble of atoms in an optical cavity. We demonstrate that when atomic dipoles are sychronized in the regime of steady-state superradiance, the motion of the atoms may be subject to a giant frictional…

Quantum Physics · Physics 2016-04-20 Minghui Xu , Simon B. Jäger , S. Schütz , J. Cooper , Giovanna Morigi , M. J. Holland

We propose a sub-Doppler laser cooling mechanism that takes advantage of the unique spectral features and extreme dispersion generated by the phenomenon of electromagnetically induced transparency (EIT). EIT is a destructive quantum…

Atomic Physics · Physics 2018-07-04 Peiru He , Phoebe M. Tengdin , Dana Z. Anderson , Ana Maria Rey , Murray Holland

We obtain a master equation for a parametrically driven optomechanical cavity. We use a more correct dissipation model that accounts for the modification of the quasienergy spectrum caused by the driving. When the natural frequency of the…

Quantum Physics · Physics 2020-07-16 Pablo Yanes-Thomas , Pablo Barberis-Blostein , Marc Bienert

We analyze cavity-assisted cooling schemes for polar molecules in the microwave domain, where molecules are excited on a rotational transition and energy is dissipated via strong interactions with a lossy stripline cavity, as recently…

Quantum Physics · Physics 2009-12-21 Margareta Wallquist , Peter Rabl , Mikhail D. Lukin , Peter Zoller

We discuss a laser cooling scheme for trapped atoms or ions which is based on double electromagnetically induced transparency (EIT) and makes use of a four-level atom in tripod configuration. The additional fourth atomic state is coupled by…

Quantum Physics · Physics 2009-11-10 Joerg Evers , Christoph H. Keitel

We theoretically study the laser cooling of cavity optomechanics when the mechanical resonance frequency and damping depend on time. In the regime of weak optomechanical coupling we extend the theory of laser cooling using an adiabatic…

Quantum Physics · Physics 2015-05-12 Marc Bienert , Pablo Barberis-Blostein

A theoretical study is carried out for the cavity cooling of a $\Lambda$-type three level atom in a high-finesse optical cavity with a weakly driven field. Analytical expressions for the friction, diffusion coefficients and the equilibrium…

Optics · Physics 2015-05-18 Lei Tan , Li-Wei Liu , Yan-Fen Sun

We present a robust and fast laser cooling scheme suitable for trapped atoms and ions. Based on quantum interference, generated by a special laser configuration, it is able to rapidly cool the system such that the final phonon occupation…

Quantum Physics · Physics 2010-01-28 J. Cerrillo , A. Retzker , M. B. Plenio
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