Superradiant atomic recoil lasing with orbital-angular-momentum light

A. T. Gisbert; N. Piovella; G. R.M. Robb; D. G. McLellan

doi:10.1103/PhysRevA.105.023526

Superradiant atomic recoil lasing with orbital-angular-momentum light

A. T. Gisbert, N. Piovella, G. R.M. Robb, D. G. McLellan

Research output: Contribution to journal › Article › peer-review

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Abstract

We analyze the collective light scattering by cold atoms in free space of a pump-laser beam possessing orbital angular momentum. We derive a set of coupled multiparticle equations for the atomic motion in which the vacuum-mode field is adiabatically eliminated. The resulting equations describe collective recoil as due to either transfer of linear momentum or orbital angular momentum. For a transverse annular atomic distribution the initial equilibrium with uniform atomic phases and no scattered field is unstable. The atoms are set in rotation and bunched in phase at different harmonics depending on the pump azimuthal index Formula Presented and on the ring radius.

Original language	English
Article number	023526
Number of pages	13
Journal	Physical Review A
Volume	105
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.105.023526
Publication status	Published - 25 Feb 2022

Funding

This work was performed in the framework of the European Training Network ColOpt, which is funded by the European Union (EU) Horizon 2020 program under the Marie Sklodowska-Curie action, Grant Agreement No. 721465.

Keywords

angular momentum of light
cold atoms and matter waves
collective effects in quantum optics
quantum description of light-matter interaction
superradiance and subradiance

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10.1103/PhysRevA.105.023526

Gisbert-etal-PRA-2022-Superradiant-atomic-recoil-lasing-with-orbital-angular-momentum-lightFinal published version, 872 KBLicence: Strath_1

Cite this

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title = "Superradiant atomic recoil lasing with orbital-angular-momentum light",

abstract = "We analyze the collective light scattering by cold atoms in free space of a pump-laser beam possessing orbital angular momentum. We derive a set of coupled multiparticle equations for the atomic motion in which the vacuum-mode field is adiabatically eliminated. The resulting equations describe collective recoil as due to either transfer of linear momentum or orbital angular momentum. For a transverse annular atomic distribution the initial equilibrium with uniform atomic phases and no scattered field is unstable. The atoms are set in rotation and bunched in phase at different harmonics depending on the pump azimuthal index Formula Presented and on the ring radius.",

keywords = "angular momentum of light, cold atoms and matter waves, collective effects in quantum optics, quantum description of light-matter interaction, superradiance and subradiance",

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AU - Robb, G. R.M.

AU - McLellan, D. G.

PY - 2022/2/25

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AB - We analyze the collective light scattering by cold atoms in free space of a pump-laser beam possessing orbital angular momentum. We derive a set of coupled multiparticle equations for the atomic motion in which the vacuum-mode field is adiabatically eliminated. The resulting equations describe collective recoil as due to either transfer of linear momentum or orbital angular momentum. For a transverse annular atomic distribution the initial equilibrium with uniform atomic phases and no scattered field is unstable. The atoms are set in rotation and bunched in phase at different harmonics depending on the pump azimuthal index Formula Presented and on the ring radius.

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KW - cold atoms and matter waves

KW - collective effects in quantum optics

KW - quantum description of light-matter interaction

KW - superradiance and subradiance

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Superradiant atomic recoil lasing with orbital-angular-momentum light

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Collective effects and optomechanics in ultra-cold matter (ColOpt) (H2020 MCSA ETN)

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Superradiant atomic recoil lasing with orbital-angular-momentum light

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Collective effects and optomechanics in ultra-cold matter (ColOpt) (H2020 MCSA ETN)

Cite this