Cooling and trapping polar molecules in an electrostatic trap

doi:10.1088/1674-1056/24/5/053701

Abstract

An electrostatic trap for polar molecules is proposed. Loading and trapping of polar molecules can be realized by applying different voltages to the two electrodes of the trap. For ND₃ molecular beams centered at ～ 10 m/s, a high loading efficiency of ～ 67% can be obtained, as confirmed by our Monte Carlo simulations. The volume of our trap is as large as ～ 3.6 cm³, suitable for study of the adiabatic cooling of trapped molecules. Our simulations indicate that trapped ND₃ molecules can be cooled from ～ 23.3 mK to 1.47 mK by reducing the trapping voltages on the electrodes from 50.0 kV to 1.00 kV.

Keywords: trapping molecules cooling molecules Stark shift of molecules

Received: 10 November 2014
Revised: 16 December 2014
Accepted manuscript online:

PACS:	37.10.Pq	(Trapping of molecules)
	37.10.Mn	(Slowing and cooling of molecules)
	37.10.Vz	(Mechanical effects of light on atoms, molecules, and ions)
	37.20.+j	(Atomic and molecular beam sources and techniques)

Fund:

Project supported by the National Natural Science Foundation of China (Grant Nos. 10674047, 10804031, 10904037, 10974055, 11034002, and 11274114), the National Key Basic Research and Development Program of China (Grant Nos. 2006CB921604 and 2011CB921602), the Basic Key Program of Shanghai Municipality, China (Grant No. 07JC14017), and the Shanghai Leading Academic Discipline Project, China (Grant No. B408).

Corresponding Authors: Yin Jian-Ping
E-mail: jpyin@phy.ecnu.edu.cn

About author: 37.10.Pq; 37.10.Mn; 37.10.Vz; 37.20.+j

Cite this article:

Wang Zhen-Xia (王振霞), Gu Zhen-Xing (顾振兴), Deng Lian-Zhong (邓联忠), Yin Jian-Ping (印建平) Cooling and trapping polar molecules in an electrostatic trap 2015 Chin. Phys. B 24 053701

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