Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules

We present a practical roadmap to achieve optical cycling and laser cooling of asymmetric top molecules (ATMs). Our theoretical analysis describes how reduced molecular symmetry, as compared to diatomic and symmetric nonlinear molecules, plays a role in photon scattering. We present methods to circu...

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Autores principales:	Benjamin L. Augenbraun, John M. Doyle, Tanya Zelevinsky, Ivan Kozyryev
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2020
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/ec49ec932e864eefa57a4a77bc82cd99
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spelling	oai:doaj.org-article:ec49ec932e864eefa57a4a77bc82cd992021-12-02T11:15:43ZMolecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules10.1103/PhysRevX.10.0310222160-3308https://doaj.org/article/ec49ec932e864eefa57a4a77bc82cd992020-07-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.031022http://doi.org/10.1103/PhysRevX.10.031022https://doaj.org/toc/2160-3308We present a practical roadmap to achieve optical cycling and laser cooling of asymmetric top molecules (ATMs). Our theoretical analysis describes how reduced molecular symmetry, as compared to diatomic and symmetric nonlinear molecules, plays a role in photon scattering. We present methods to circumvent limitations on rapid photon cycling in these systems. We calculate vibrational branching ratios for a diverse set of asymmetric top molecules and find that many species within a broad class of molecules can be effectively cooled with a manageable number of lasers. We also describe methods to achieve rotationally closed optical cycles in ATMs. Despite significant structural complexity, laser cooling can be made effective by using extensions of the current techniques for linear molecules. Potential scientific impacts of laser-cooled ATMs span frontiers in controlled chemistry, quantum simulation, and searches for physics beyond the Standard Model.Benjamin L. AugenbraunJohn M. DoyleTanya ZelevinskyIvan KozyryevAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 3, p 031022 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Benjamin L. Augenbraun John M. Doyle Tanya Zelevinsky Ivan Kozyryev Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
description	We present a practical roadmap to achieve optical cycling and laser cooling of asymmetric top molecules (ATMs). Our theoretical analysis describes how reduced molecular symmetry, as compared to diatomic and symmetric nonlinear molecules, plays a role in photon scattering. We present methods to circumvent limitations on rapid photon cycling in these systems. We calculate vibrational branching ratios for a diverse set of asymmetric top molecules and find that many species within a broad class of molecules can be effectively cooled with a manageable number of lasers. We also describe methods to achieve rotationally closed optical cycles in ATMs. Despite significant structural complexity, laser cooling can be made effective by using extensions of the current techniques for linear molecules. Potential scientific impacts of laser-cooled ATMs span frontiers in controlled chemistry, quantum simulation, and searches for physics beyond the Standard Model.
format	article
author	Benjamin L. Augenbraun John M. Doyle Tanya Zelevinsky Ivan Kozyryev
author_facet	Benjamin L. Augenbraun John M. Doyle Tanya Zelevinsky Ivan Kozyryev
author_sort	Benjamin L. Augenbraun
title	Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
title_short	Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
title_full	Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
title_fullStr	Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
title_full_unstemmed	Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
title_sort	molecular asymmetry and optical cycling: laser cooling asymmetric top molecules
publisher	American Physical Society
publishDate	2020
url	https://doaj.org/article/ec49ec932e864eefa57a4a77bc82cd99
work_keys_str_mv	AT benjaminlaugenbraun molecularasymmetryandopticalcyclinglasercoolingasymmetrictopmolecules AT johnmdoyle molecularasymmetryandopticalcyclinglasercoolingasymmetrictopmolecules AT tanyazelevinsky molecularasymmetryandopticalcyclinglasercoolingasymmetrictopmolecules AT ivankozyryev molecularasymmetryandopticalcyclinglasercoolingasymmetrictopmolecules
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Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules

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