404 citations · 1.1k across the 53 of their papers we have counts for
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quant-ph2001★ 36 cited
Bargmann invariants and off-diagonal geometric phases for multi-level quantum systems -- a unitary group approach
N. Mukunda, Arvind, S. Chaturvedi +1
We investigate the geometric phases and the Bargmann invariants associated with a multi-level quantum systems. In particular, we show that a full set of `gauge-invariant' objects f…
quant-ph2001★ 25 cited
Geometry of mixed states and degeneracy structure of geometric phases for multi-level quantum systems. A unitary group approach
E. Ercolessi, G. Marmo, G. Morandi +1
We analyze the geometric aspects of unitary evolution of general states for a multilevel quantum system by exploiting the structure of coadjoint orbits in the unitary group Lie alg…