# Suppression of nonadiabatic losses of molecules from chip-based microtraps

@article{Meek2011SuppressionON,
title={Suppression of nonadiabatic losses of molecules from chip-based microtraps},
author={Samuel A. Meek and Gabriele Santambrogio and Boris G. Sartakov and Horst Dr Conrad and Gerard Meijer},
journal={Physical Review A},
year={2011},
volume={83},
pages={033413}
}
• Published 5 January 2011
• Physics
• Physical Review A
Polar molecules in selected quantum states can be guided, decelerated, and trapped using electric fields created by microstructured electrodes on a chip. Here we explore how nonadiabatic transitions between levels in which the molecules are trapped and levels in which the molecules are not trapped can be suppressed. We use {sup 12}CO and {sup 13}CO (a {sup 3{Pi}}{sub 1},v=0) molecules, prepared in the upper {Lambda}-doublet component of the J=1 rotational level, and study the trap loss as a…
17 Citations

## Figures from this paper

Vibrationally exciting molecules trapped on a microchip
• Physics, Chemistry
• 2012
Polar molecules in selected quantum states can be guided, decelerated and trapped using electric fields created by microstructured electrodes on a chip. Here we demonstrate that transitions between
Multiring electrostatic guide for Rydberg positronium
• Physics
Physical Review A
• 2019
We report the results of experiments in which positronium (Ps) atoms, optically excited to Rydberg-Stark states with principal quantum numbers ranging from n = 13 to 19, were transported along the
Controllable chip-based beam splitter for cold polar molecules
• Physics
Physical Review A
• 2019
We proposed a $\mathsf{Y}$-shaped molecular beam splitter for guided polar molecules, composed by several 1-\ensuremath{\mu}m-thick gold electrodes deposited on a chip. The splitter has a total
Chapter 5 Ramsey-type microwave spectroscopy on CO ( a 3 Π )
Using a Ramsey-type setup, the lambda-doublet transition in the J = 1, Ω = 1 level of the aΠ state of CO was measured to be 394 064 870(10) Hz. In our molecular beam apparatus, a beam of metastable
A traveling wave decelerator for neutral polar molecules.
• Physics
The Review of scientific instruments
• 2011
A complete description of this decelerator for neutral polar molecules that operates on the basis of macroscopic, three-dimensional, traveling electrostatic traps is given, with emphasis on the electronics and the mechanical design.
Trapping molecules on chips
In the last years, it was demonstrated that neutral molecules can be loaded on a microchip directly from a supersonic beam. The molecules are confined in microscopic traps that can be moved smoothly
Manipulation of molecules with electromagnetic fields
• Physics, Chemistry
• 2013
The goal of the present article is to review the major developments that have led to the current understanding of molecule–field interactions and experimental methods for manipulating molecules with
Manipulation and control of molecular beams.
• Physics
Chemical reviews
• 2012
It was demonstrated that a detailed understanding of the influence of the external field on the energy level structure of the molecules was required for the manipulation of molecules with electric or magnetic fields.
Dynamics of molecular beams in a traveling-wave Stark decelerator
Physicists have observed all the elementary particles predicted by the Standard Model. These particles, however, account for only 5% of the total mass-energy of the Universe. In the quest to solve

## References

SHOWING 1-10 OF 35 REFERENCES
Nonadiabatic transitions in electrostatically trapped ammonia molecules
• Physics, Chemistry
• 2009
Nonadiabatic transitions are known to be major loss channels for atoms in magnetic traps but have thus far not been experimentally reported upon for trapped molecules. We have observed and quantified
Nonadiabatic transitions in a Stark decelerator
• Physics
• 2010
In a Stark decelerator, polar molecules are slowed down and focused by an inhomogeneous electric field which switches between two configurations. For the decelerator to work, it is essential that the
Magnetic microtraps for ultracold atoms
• Physics
• 2007
Trapping and manipulating ultracold atoms and degenerate quantum gases in magnetic micropotentials is reviewed. Starting with a comprehensive description of the basic concepts and fabrication
A Stark decelerator on a chip
• Physics, Chemistry
• 2009
A microstructured array of 1254 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120µm about 25µm above the
Trapping Molecules on a Chip
• Chemistry, Physics
Science
• 2009
A step toward miniaturization in this latter regime is taken by demonstrating the isolation of a cold gas-phase beam of CO molecules just above a microelectrode-decorated chip using direct loading from a supersonic beam.
Submillimeter-Wave Spectroscopy of CO in the a3Π State
• Physics
• 2000
Abstract Submillimeter-wave absorption spectrum of CO in electronically excited a 3 Π state was observed in the 540–830 GHz region by using a phase-locked BWO spectrometer. New rotational transitions
Trapping molecules on a chip in traveling potential wells.
• Physics
Physical review letters
• 2008
A microstructured array of over 1200 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120 microm about 25 microm
The microwave spectrum of CO in the a 3Π state. II. The submillimeter wave transitions in the normal isotope
• Physics
• 1988
Precise measurements of the frequencies of a number of new rotational transitions of a 3Π CO (v=0–4) in the range 250–500 GHz are reported. In addition earlier measurements of the J=0–1 frequencies
Fine Structure, Dipole Moment, and Perturbation Analysis of a 3Π CO
• Physics
• 1972
Theedio‐frequency spectrum of the a 3Π state of carbon monoxide from 5 to 1000 MHz has been measured in a molecular beam electric resonance spectrometer. Lambda doubling transitions in Ω=2, J=2–8,
Metastable a 3Π 13CO: Molecular‐Beam Electric‐Resonance Measurements of the Fine Structure, Hyperfine Structure, and Dipole Moment
• Physics
• 1971
The radio‐frequency spectrum of metastable a 3Π 13CO has been measured in molecular‐beam electric resonance in the range 0–2000 MHz. Electric‐dipole transitions with ΔJ = 0 and ΔF = 0, ± 1 have been