Straightforward novel methods for stabilizing, tuning, and controlling a twin Mach–Zehnder interferometer for the purpose of observing a subtle dynamical quantum nonlocality effect in a recent optical experiment are presented and discussed. Weak measurements were required for observing a subtle quantum dynamical nonlocality effect that reveals itself in a change of a weak value. Consequently, emphasis is placed upon describing the approaches to apparatus stabilization and interaction strength control between photons and the apparatus. The details discussed in this paper should be of general interest to experimentalists engaging in weak measurement and weak value research.
Original Manuscript: August 14, 2012
Manuscript Accepted: September 27, 2012
Published: November 9, 2012
Scott E. Spence, Allen D. Parks, and David A. Niemi, "Methods used to observe a dynamical quantum nonlocality effect in a twin Mach–Zehnder interferometer," Appl. Opt. 51, 7853-7857 (2012)