+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Observation of atom wave phase shifts induced by van der Waals atom-surface interactions

Observation of atom wave phase shifts induced by van der Waals atom-surface interactions

Physical Review Letters 95(13): 133201

The development of nanotechnology and atom optics relies on understanding how atoms behave and interact with their environment. Isolated atoms can exhibit wavelike (coherent) behavior with a corresponding de Broglie wavelength and phase which can be affected by nearby surfaces. Here an atom interferometer is used to measure the phase shift of Na atom waves induced by the walls of a 50 nm wide cavity. To our knowledge this is the first direct measurement of the de Broglie wave phase shift caused by atom-surface interactions. The magnitude of the phase shift is in agreement with that predicted by Lifshitz theory for a nonretarded van der Waals interaction. This experiment also demonstrates that atom waves can retain their coherence even when atom-surface distances are as small as 10 nm.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 049729644

Download citation: RISBibTeXText

PMID: 16197137

DOI: 10.1103/physrevlett.95.133201

Related references

Average and extreme multi-atom Van der Waals interactions: strong coupling of multi-atom Van der Waals interactions with covalent bonding. Chemistry Central Journal 1: 21, 2007

Atom symmetry break and metastable level coupling in rare gas atom-surface van der Waals interaction. Physical Review Letters 86(13): 2766-2769, 2001

Observation of Atom-Wave Beats Using a Kerr Modulator for Atom Waves. Physical Review Letters 116(5): 053004, 2016

Manipulating higher partial-wave atom-atom interactions by strong photoassociative coupling. Physical Review Letters 103(2): 023201, 2009

Semiconductor surface sublimation energies and atom-atom interactions. Physical Review Letters 64(21): 2531-2534, 1990

Use of surface area computations to describe atom-atom interactions. Journal of Computer-Aided Molecular Design 15(6): 521-532, 2001

Numerical observation of the rescattering wave packet in laser-atom interactions. Physical Review Letters 99(9): 093001, 2007

Potentials for the non-bonded atom atom interactions ClC(sp2) and C(sp3)C(sp2) as derived from gas-phase data on chloropropenes and butenes using molecular mechanics calculations. Journal of Molecular Structure 159(1-2): 153-171, 1987

Elastic D- and higher-partial-wave phase shifts in positron-hydrogen-atom collisions using Schwinger's principle. Physical Review. A, Atomic, Molecular, and Optical Physics 48(4): 2952-2956, 1993

Nanoscale surface dynamics of Bi 2 Te 3 (111): observation of a prominent surface acoustic wave and the role of van der Waals interactions. Nanoscale 10(30): 14627-14636, 2018

Van der Waals-induced spectral distortions in selective-reflection spectroscopy of Cs vapor: the strong atom-surface interaction regime. Optics Letters 16(23): 1879-1881, 1991

Spin-polarized metastable-atom deexcitation spectroscopy: A new probe of the dynamics of metastable-atom-surface interactions. Physical Review. B, Condensed Matter 39(8): 5488-5491, 1989

Many-atom van der Waals interactions lead to direction-sensitive interactions of covalent bonds. Journal of Bioinformatics and Computational Biology 6(4): 693-707, 2008

Van der Waals forces between an atom and a surface. Molecular Physics 7(4): 381-388, 1964

Bonding in ground-state and excited-state A+.Rg van der Waals ions (A = atom, Rg = rare-gas atom): a model-potential analysis. Chemical Reviews 102(5): 1595-1622, 2002