Title
Measurement of geometric phases by robust interferometric methods
Date Issued
01 January 2011
Access level
open access
Resource Type
conference paper
Publisher(s)
Institute of Physics Publishing
Abstract
We present a novel interferometric arrangement that makes it possible to measure with great versatility geometric phases produced in polarization states of classical light. Our arrangement is robust against thermal and mechanical disturbances and can be set up in a Mach-Zehnder, a Michelson or a Sagnac configuration. We present results concerning the geometric phase as an extension of previous measurements of the Pancharatnam, or total phase. The geometric phase is obtained by compensating the dynamical contribution to the total phase, so as to extract out of it a purely geometric phase. This can be achieved over trajectories on the Poincare sphere that are not necessarily restricted to be great circles (geodesics). We thus demonstrate the feasibility of our method for dynamical extraction of the geometric contribution to the total phase, a prerequisite for building geometric quantum gates. Although our results correspond to polarization states of classical light, the same methodology could be applied in the case of polarization states of single photons.
Volume
274
Issue
1
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Scopus EID
2-s2.0-79953737014
Source
Journal of Physics: Conference Series
ISSN of the container
17426588
Sources of information: Directorio de Producción Científica Scopus