319 citations · 788 across the 9 of their papers we have counts for
Showing 2004 · quant-phShow all
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quant-ph2004★ 27 cited
Operator-sum representation of time-dependent density operators and its applications
D. M. Tong, L. C. Kwek, C. H. Oh +2
We show that any arbitrary time-dependent density operator of an open system can always be described in terms of an operator-sum representation regardless of its initial condition…
quant-ph2004★ 319 cited
Kinematic approach to the mixed state geometric phase in nonunitary evolution
D. M. Tong, E. Sjöqvist, L. C. Kwek +1
A kinematic approach to the geometric phase for mixed quantal states in nonunitary evolution is proposed. This phase is manifestly gauge invariant and can be experimentally tested…