Geometric phasea la Pancharatnam
Veer Chand Rakhecha Apoorva G Wagh
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/pram/046/05/0315-0322
In mid-1950s, Pancharatnam [1] encountered the geometric phase associated with the evolution along a geodesic triangle on the Poincaré sphere. We generalize his 3-vertex phase and employ it as the fundamental building block, to geometrically construct a general ray-space expression for geometric phase. In terms of a reference ray used to specify geometric phase, we delineate clear geometric meanings for gauge transformations and gauge freedom, which are generally regarded as mere mathematical abstractions.
Veer Chand Rakhecha1 Apoorva G Wagh1
Volume 96, 2022
All articles
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode
© 2021-2022 Indian Academy of Sciences, Bengaluru.