Polarizability measurements of a molecule via a near-field matter-wave interferometer

Author(s): M. Berninger, A. Stefanov, S. Deachapunya, M. Arndt

Journal: Phys. Rev. A

Volume: 76

Page(s): 013607

Year: 2007

DOI Number: 10.1103/PhysRevA.76.013607

Link: Link to publication


We present a method for measuring the scalar polarizability of molecules by means of near-field matter-wave interferometry. This technique is applicable to a wide range of complex neutral molecules. A key feature of our experiment is the combination of good transmission and high spatial resolution, gained by imprinting a submicrometer spatial modulation onto a wide molecular beam. Our method significantly improves the measurement sensitivity of the polarizability-dependent shifts. We have successfully performed measurements on

fullerenes and report the polarizability to be  =88.9±0.9±5.1 Å3 for C60 and  =108.5±2.0±6.2 Å3 for C70.

Note: http://arxiv.org/abs/quant-ph/0701179selected for the July 23, 2007 issue of Virtual Journal of Nanoscale Science & Technology

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