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相关论文: Momentum diffusion for coupled atom-cavity oscilla…

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We demonstrate cavity cooling of all motional degrees of freedom of an atomic ensemble using light that is far detuned from the atomic transitions by several gigahertz. The cooling is achieved by cavity-induced frequency-dependent…

原子物理 · 物理学 2017-05-10 Mahdi Hosseini , Yiheng Duan , Kristin M. Beck , Yu-Ting Chen , Vladan Vuletić

Coherently-pumped (Kerr) solitons in an ideal optical microcavity are expected to undergo random quantum motion that determines fundamental performance limits in applications of soliton microcombs. Here, this diffusive motion and its impact…

In many experiments isolated atoms and ions have been inserted into high-finesse optical resonators for the study of fundamental quantum optics and quantum information. Here, we introduce another application of such a system, as the…

Individual laser cooled atoms are delivered on demand from a single atom magneto-optic trap to a high-finesse optical cavity using an atom conveyor. Strong coupling of the atom with the cavity field allows simultaneous cooling and detection…

量子物理 · 物理学 2009-11-13 Kevin M. Fortier , Soo Y. Kim , Michael J. Gibbons , Peyman Ahmadi , Michael S. Chapman

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…

量子物理 · 物理学 2012-11-29 Tobias Grießer , Wolfgang Niedenzu , Helmut Ritsch

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…

量子物理 · 物理学 2019-12-10 Christoph Hotter , David Plankensteiner , Laurin Ostermann , Helmut Ritsch

We show that an atom can be coupled to a mechanical oscillator via quantum vacuum fluctuations of a cavity field enabling energy transfer processes between them. In a hybrid quantum system consisting of a cavity resonator with a movable…

量子物理 · 物理学 2023-02-06 Bo Wang , Jia-Ming Hu , Vincenzo Macrì , Ze-Liang Xiang , Franco Nori

We study the cooling of a dielectric nanoscale particle trapped in an optical cavity. We derive the frictional force for motion in the cavity field, and show that the cooling rate is proportional to the square of oscillation amplitude and…

光学 · 物理学 2013-05-29 P. F. Barker , M. N. Shneider

This study introduces a novel method to investigate in-situ light transport within optically thick ensembles of cold atoms, exploiting the internal structure of alkaline-earth metals. A method for creating an optical excitation at the…

Quantum diffusion is studied via dissipative Madelung hydrodynamics. Initially the wave packet spreads ballistically, than passes for an instant through normal diffusion and later tends asymptotically to a sub-diffusive law. It is shown…

量子物理 · 物理学 2011-04-21 Roumen Tsekov

When a cold atomic gas is illuminated by a quasi-resonant laser beam, light-induced dipole-dipole correlations make the scattering of light a cooperative process. Once a fluid description is adopted for the atoms, many scattering properties…

光学 · 物理学 2013-10-23 N. Piovella , R. Bachelard , Ph. W. Courteille

The transversely confined propagating modes of an optical fiber mediate virtually infinite range energy exchanges among atoms placed within their field, which adds to the inherent free space dipole-dipole coupling. Typically, the single…

量子物理 · 物理学 2019-03-01 Laurin Ostermann , Clement Meignant , Claudiu Genes , Helmut Ritsch

Light scattering by a periodic atomic array is studied when the atoms couple with the mode of a high-finesse optical resonator and are driven by a laser. When the von-Laue condition is not satified, there is no coherent emission into the…

量子物理 · 物理学 2011-09-19 Hessam Habibian , Stefano Zippilli , Giovanna Morigi

A thin atomic gas in an optical resonator exhibits a phase transition from a homogeneous density to crystalline order when laser illuminated orthogonal to the resonator axis. We study this well-known self-organization phenomenon for a…

量子物理 · 物理学 2020-08-26 Valentin Torggler , Ivor Krešić , Ticijana Ban , Helmut Ritsch

Atomic diffusion is usually understood as a succession of random, independent displacements of an adatom over the surface's potential energy landscape. Nevertheless, an analysis of Molecular Dynamics simulations of self-diffusion on Cu(111)…

其他凝聚态物理 · 物理学 2016-08-16 J. Ferrón , L. Gómez , J. J. de Miguel , R. Miranda

Momentum transfer between matter and electromagnetic field is analyzed. The related equations of motion and conservation laws are derived using relativistic formalism. Their correspondence to various, at first sight self-contradicting,…

光学 · 物理学 2010-08-16 A. Feigel

The energy and particle fluxes emitted by an accelerated two level atom are analysed in detail. It is shown both perturbatively and non perturbatively that the total number of emitted photons is equal to the number of transitions…

广义相对论与量子宇宙学 · 物理学 2016-08-31 S. Massar , R. Parentani

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…

量子物理 · 物理学 2007-09-05 Stefano Zippilli , Giovanna Morigi , Wolfgang P. Schleich

The vacuum fluctuations that induce the transitions and the thermalisation of a uniformly accelerated two level atom are studied in detail. Their energy content is revealed through the weak measurement formalism of Aharonov et al. It is…

广义相对论与量子宇宙学 · 物理学 2009-09-25 S. Massar , R. Parentani

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…

量子物理 · 物理学 2015-05-12 Marc Bienert , Pablo Barberis-Blostein