# Doppler cooling to the quantum limit.

@article{Chalony2011DopplerCT, title={Doppler cooling to the quantum limit.}, author={Maryvonne Chalony and Anders Kastberg and Bruce G. Klappauf and David Wilkowski}, journal={Physical review letters}, year={2011}, volume={107 24}, pages={ 243002 } }

Doppler cooling on a narrow transition is limited by the noise of single scattering events. It shows novel features, which are in sharp contrast with cooling on a broad transition, such as a non-gaussian momentum distribution, and divergence of its mean square value close to the resonance. We have observed those features using 1D cooling on an intercombination transition in strontium, and compared the measurements with theoretical predictions and Monte Carlo simulations. We also find that for…

## 18 Citations

Scaling law in laser cooling on narrow-line optical transitions

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In this paper laser cooling of atoms with a narrow-line optical transition, i.e. in regimes of quantum nature of laser-light interactions resulting in a significant recoil effect, is studied. It is…

Three-dimensional laser cooling at the Doppler limit

- Physics
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Many predictions of Doppler cooling theory of two-level atoms have never been verified in a three-dimensional geometry, including the celebrated minimum achievable temperature $\hbar \Gamma/2 k_B$,…

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Abstract We present a quantitative model for magneto-optical traps operating on narrow transitions, where the transition linewidth and the recoil shift are comparable. We combine a quantum treatment…

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In two dimensions, a system of self-gravitating particles collapses and forms a singularity in finite time below a critical temperature $T_c$. We investigate experimentally a quasi two-dimensional…

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A quasiresonant laser induces a long-range attractive force within a cloud of cold atoms. We take advantage of this force to build in the laboratory a system of particles with a one-dimensional…

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- PhysicsPhysical Review A
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We characterize the anisotropic differential ac-Stark shift for the Dy 626 nm intercombination transition, induced in a far-detuned 1070 nm optical dipole trap, and observe the existence of a "magic…

Magneto-optical trapping of strontium for use as a mobile frequency reference

- Physics
- 2013

Atomic Caesium clocks have made an astonishing development in the past few decades, with them gaining an order of magnitude in precision every decade. A new generation of atomic optical clocks is now…

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- Physics
- 2015

We describe an experimental apparatus capable of achieving a high loading rate of strontium atoms in a magneto-optical trap operating in a high vacuum environment. A key innovation of this setup is a…

Non-Abelian adiabatic geometric transformations in a cold strontium gas

- PhysicsNature Communications
- 2018

Non-Abelian geometric phase in laser-coupled ultracold strontium atoms is shown by using a tripod scheme and it is revealed how the gauge field imprinted on the atoms impact their internal state dynamics.

Observation of a non-equilibrium steady state of cold atoms in a moving optical lattice

- PhysicsCommunications Physics
- 2018

Non-equilibrium dynamics expands our understanding on physical processes based on the conventional equilibrium physics. In particular, non-equilibrium steady states with continuous flow among them…

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