52 citations · 103 across the 13 of their papers we have counts for
4 papers · 1 filter
Observable Dirac-type singularities in Berry's phase and the monopole
Rajendra Bhandari
The physical reality and observability of 2nπBerry phases, as opposed to the usually considered modulo 2πtopological phases is demonstrated with the help of computer simulation of…
On singularities of the mixed state phase
Rajendra Bhandari
A recent proposal of Sjoqvist et.al. to extend Pancharatnam's criterion for phase difference between two different pure states to the case of mixed states in quantum mechanics is a…
Comment on ``Experimental Separation of Geometric and Dynamical Phases Using Neutron Interferometry"
Rajendra Bhandari
We analyse a recently reported neutron interference experiment to measure a geometric phase and attempt to bring out the inadequacy of the ``phase modulo 2π" approach to the geomet…
Comment on "Neutron Interferometric Observation of Noncyclic Phase"
Rajendra Bhandari
A critique of a recent experiment [Wagh et.al., Phys.Rev.Lett.81, 1992 (7 Sep 1998)] to measure the noncyclic phase associated with a precessing neutron spin in a neutron interfero…