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Updated: Jun 19, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
Phase measurements of barrier crossings in a periodically modulated double-well potential
Yeonee Seol1, D L Stein, Koen Visscher
1NHLBI, National Institute of Health, Bethesda, Maryland, USA.
Abstract:
We report on the experimental observation of the phase angle of a particle escaping over a periodically modulated potential barrier. Optical tweezers and back-focal plane position detection were used to record particle trajectories in the entire double-well potential. These measurements provide a sensitive test of theories proposed in the past decade of escape driven by random thermal noise from a periodically modulated potential. The observed phase shifts as a function of modulation frequency are consistent with those calculated using existing theories.
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