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quant-ph2019★ 10 cited
On extrema of the objective functional for short-time generation of single qubit quantum gates
Alexander Pechen, Nikolay Il'in
In the present work the extrema of the objective functional for the problem of generation of quantum gates (logical elements for quantum computations) for two--level systems are in…
quant-ph2019★ 17 cited
Control landscape for ultrafast manipulation by a qubit
Alexander Pechen, Nikolay Il'in
In this work we study extrema of objective functionals for ultrafast manipulation by a qubit. Traps are extrema of the objective functionals which are optimal for manipulation by q…