We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham Research Online
You are in:

A molecular synchrotron.

Heiner, C. E. and Carty, D. and Meijer, G. and Bethlem, H. L. (2007) 'A molecular synchrotron.', Nature physics., 3 (2). pp. 115-118.


Many of the tools for manipulating the motion of neutral atoms and molecules take their inspiration from techniques developed for charged particles. Traps for atoms—akin to the Paul trap for ions1—have paved the way for many exciting experiments, ranging from ultra-precise clocks2 to creating quantum degenerate matter3, 4. Surprisingly, little attention has been paid to developing a neutral particle analogue of a synchrotron—arguably, the most celebrated tool of the charged-particle physicist5, 6. So far, the few experiments dealing with ring structures for neutral particles have used cylindrically symmetric designs7, 8, 9; in these rings, no force is applied to the particles along the longitudinal direction and the stored particles are free to fill the entire ring. Here, we demonstrate a synchrotron for neutral polar molecules. A packet of ammonia molecules is accelerated, decelerated and focused along the longitudinal direction ('bunched') using the fringe fields between the two halves of a segmented hexapole ring. The stored bunch of cold molecules (T=0.5 mK) is confined to a 3 mm packet even after a flight distance of over 30 m (40 round trips). Furthermore, we show the injection of multiple packets into the ring.

Item Type:Article
Full text:Full text not available from this repository.
Publisher Web site:
Record Created:09 Jan 2008
Last Modified:08 Apr 2009 16:36

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitterExport: EndNote, Zotero | BibTex
Look up in GoogleScholar | Find in a UK Library