Atom beam velocity measurements using phase choppers

William F. Holmgren, Ivan Hromada, Catherine E. Klauss, Alexander D Cronin

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We describe a new method to measure atom beam velocity in an atom interferometer using phase choppers. Phase choppers are analogous to mechanical chopping discs, but rather than being transmitted or blocked by mechanical choppers, an atom receives different differential phase shifts (e.g. zero or φ radians) from phase choppers. Phase choppers yield 0.1% uncertainty measurements of beam velocity in our interferometer with 20 min of data and enable new measurements of polarizability with unprecedented precision.

Original languageEnglish (US)
Article number115007
JournalNew Journal of Physics
StatePublished - Nov 2011

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Atom beam velocity measurements using phase choppers'. Together they form a unique fingerprint.

Cite this