Measuring the Aharonov-Anandan phase in photonics
Kai Wang, Steffen Weimann, Armando Perez-Leija, and Alexander Szameit
TL;DR
This paper reports the experimental measurement of the Aharonov-Anandan phase in photonics using integrated interferometry with evanescently coupled waveguides, demonstrating the geometric phase in non-adiabatic quantum evolutions.
Contribution
It introduces a novel photonic setup to measure the Aharonov-Anandan phase in a non-adiabatic quantum system, advancing experimental quantum physics.
Findings
Successful measurement of the Aharonov-Anandan phase in photonics
Implementation of a time-independent quantum harmonic oscillator model
Use of integrated interferometry with coupled waveguides
Abstract
The Aharonov-Anandan phase is a description of the geometric nature in non-adiabatic cyclic evolutions of quantum states. Here we report on a measurement of the Aharonov-Anandan phase in photonics. We consider a time-independent quantum driven harmonic oscillator that is initially prepared at the vacuum state. We utilize evanescently coupled waveguides to realize this physical model and achieve a measurement of the Aharonov-Anandan phase via integrated interferometry.
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