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Instruments and methods of investigation

# Direct laser cooling of molecules

The National Research Center "Kurchatov Institute", Konstantinov Petersburg Nuclear Physics Institute, Orlova Roshcha, Gatchina, Leningradskaya Region, 188300, Russian Federation

The methods of laser cooling of atoms have already long been applied to obtain cold and ultracold atomic gases, including degenerate states, in particular, an atomic Bose—Einstein condensate. The application of laser cooling methods to molecules was assumed until recently to be impossible because of the complex structure of molecular levels and the absence of closed cooling cycles for transitions between electronic levels of molecules in the general case. However, it has recently become clear that laser cooling can be performed for a large class of molecules, including not only the simplest diatomic molecules but also polyatomic molecules. The review presents the general principles for identifying suitable molecules and discusses current studies on and further developments in the laser cooling of molecules.

Keywords: cold molecules, spectroscopy, laser cooling, electronic structure
PACS: 31.10.+z, 33.20.−t, 37.10.De (all)
DOI: 10.3367/UFNe.2018.12.038509
URL: https://ufn.ru/en/articles/2020/3/d/
Citation: Isaev T A "Direct laser cooling of molecules" Phys. Usp. 63 289–302 (2020)
 BibTexBibNote ® (generic)BibNote ® (RIS) MedlineRefWorks PT Journal Article TI Direct laser cooling of molecules AU Isaev T A FAU Isaev TA DP 10 Mar, 2020 TA Phys. Usp. VI 63 IP 3 PG 289-302 RX 10.3367/UFNe.2018.12.038509 URL https://ufn.ru/en/articles/2020/3/d/ SO Phys. Usp. 2020 Mar 10;63(3):289-302

Received: 14th, September 2018, revised: 18th, December 2018, 26th, December 2018

Îðèãèíàë: Èñàåâ Ò À «Ïðÿìîå ëàçåðíîå îõëàæäåíèå ìîëåêóë» ÓÔÍ 190 313–328 (2020); DOI: 10.3367/UFNr.2018.12.038509

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