601 citations · 2k across the 30 of their papers we have counts for
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quant-ph2000★ 601 cited
Geometric phases for mixed states in interferometry
Erik Sjöqvist, Arun K. Pati, Artur Ekert +4
We provide a physical prescription based on interferometry for introducing the total phase of a mixed state undergoing unitary evolution, which has been an elusive concept in the p…
quant-ph2000★ 247 cited
Geometric Quantum Computation
A. Ekert, M. Ericsson, P. Hayden +4
We describe in detail a general strategy for implementing a conditional geometric phase between two spins. Combined with single-spin operations, this simple operation is a universa…