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A cold dilute atomic gas in an optical resonator can be radiatively cooled by coherent scattering processes when the driving laser frequency is tuned close but below the cavity resonance. When sufficiently illuminated, moreover, the atoms'…

We study the interaction of dielectric rods and disks with the laser field of a high finesse cavity. The quantum master equation for the coupled particle-cavity dynamics, including Rayleigh scattering, is derived for particle sizes…

We present a detailed numerical analysis of the temperature limit and timescale of cavity cooling of a dilute gas in the quantum regime for particles and light. For a cavity with a linewidth smaller than the recoil frequency efficient…

Quantum Physics · Physics 2013-12-11 Raimar M. Sandner , Wolfgang Niedenzu , Helmut Ritsch

We present detailed discussions of cooling and trapping mechanisms for an atom in an optical trap inside an optical cavity, as relevant to recent experiments. The interference pattern of cavity QED and trapping fields in space makes the…

Quantum Physics · Physics 2009-11-06 S. J. van Enk , J. McKeever , H. J. Kimble , J. Ye

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

Taming quantum dynamical processes is the key to novel applications of quantum physics, e.g. in quantum information science. The control of light-matter interactions at the single-atom and single-photon level can be achieved in cavity…

Quantum Physics · Physics 2015-06-26 Stefan Nussmann , Karim Murr , Markus Hijlkema , Bernhard Weber , Axel Kuhn , Gerhard Rempe

We theoretically propose and experimentally demonstrate a parallel-electromagnetically-induced transparency (parallel-EIT) cooling technique for ion crystals in the Paul trap. It has less stringent requirements on the cooling resonance…

We study the dynamics of polarizable particles coupled to a lossy cavity mode that are transversally driven by a laser. Our analysis is performed in the regime where the cavity linewidth exceeds the recoil frequency by several orders of…

Quantum Physics · Physics 2025-03-20 Simon B. Jäger

We review and study the roles of quantum and classical fluctuations in recent cavity-optomechanical experiments which have now reached the quantum regime (mechanical phonon occupancy < 1) using resolved sideband laser cooling. In…

The helium dimer in its metastable triplet state is a promising candidate to be the first laser-cooled homonuclear molecule. An ultracold gas of He$_2^*$ would enable a new generation of precision measurements to test quantum…

Atomic Physics · Physics 2025-05-22 Lucía Verdegay , Bingcheng Zeng , Daniel Y. Knapp , Jack C. Roth , Maximilian Beyer

The radiation pressure of light can act to damp and cool the vibrational motion of a mechanical resonator. In understanding the quantum limits of this cooling, one must consider the effect of shot noise fluctuations on the final thermal…

Quantum Physics · Physics 2016-02-17 R. W. Peterson , T. P. Purdy , N. S. Kampel , R. W. Andrews , P. -L. Yu , K. W. Lehnert , C. A. Regal

We study the mechanical effects of light on an atom trapped in a harmonic potential when an atomic dipole transition is driven by a laser and it is strongly coupled to a mode of an optical resonator. We investigate the cooling dynamics in…

Quantum Physics · Physics 2007-09-05 Stefano Zippilli , Giovanna Morigi , Wolfgang P. Schleich

We demonstrate all-optical sympathetic cooling of a laser-trapped microsphere to sub-Kelvin temperatures, mediate by optical binding to a feedback-cooled adjacent particle. Our study opens prospects for multi-particle quantum entanglement…

A laser cooling scheme for trapped ions is presented which is based on the fast dynamical Stark shift gate, described in [Jonathan etal, PRA 62, 042307]. Since this cooling method does not contain an off resonant carrier transition, low…

Quantum Physics · Physics 2009-11-13 A. Retzker , M. B. Plenio

We demonstrate active embedded microfluidic cooling in $\beta$-Ga$_2$O$_3$. We employ a cost-effective infra-red laser etch setup to achieve controlled etching of micro-channels in 500 um thick $\beta$-Ga$_2$O$_3$ substrate. The…

We demonstrate broadband laser cooling of atomic ions in an rf trap using ultrafast pulses from a modelocked laser. The temperature of a single ion is measured by observing the size of a time-averaged image of the ion in the known harmonic…

Quantum Physics · Physics 2009-11-11 B. B. Blinov , R. N. Kohn , M. J. Madsen , P. Maunz , D. L. Moehring , C. Monroe

We demonstrate slowing and longitudinal cooling of a supersonic beam of CaF molecules using counter-propagating laser light resonant with a closed rotational and almost closed vibrational transition. A group of molecules are decelerated by…

In a recent paper [Beige, Knight, and Vitiello, quant-ph/0404160], we showed that a large number N of particles can be cooled very efficiently using a bichromatic interaction. The particles should be excited by red-detuned laser fields…

Quantum Physics · Physics 2007-05-23 Almut Beige , Peter L. Knight , Giuseppe Vitiello

The combination of ultra-cold atomic clouds with the light fields of optical cavities provides a powerful model system for the development of new types of laser cooling and for studying cooperative phenomena. These experiments critically…

Atomic Physics · Physics 2008-01-29 Simone Bux , Gordon Krenz , Sebastian Slama , Claus Zimmermann , Philippe W. Courteille

Let L(t) be a Levy flights process with a stability index \alpha\in(0,2), and U be an external multi-well potential. A jump-diffusion Z satisfying a stochastic differential equation dZ(t)=-U'(Z(t-))dt+\sigma(t)dL(t) describes an evolution…

Statistical Mechanics · Physics 2009-11-13 I. Pavlyukevich