Nonadiabatic geometrical quantum gates in semiconductor quantum dots
Paolo Solinas, Paolo Zanardi, Nino Zanghı̀, Fausto Rossi · Physical Review A · 2003
In this paper, we study the implementation of nonadiabatic geometrical quantum gates with in semiconductor quantum dots. Different quantum information enconding (manipulation) schemes exploiting excitonic degrees of freedom are discussed. By means of the Aharanov-Anandan geometrical phase, one can avoid the limitations of adiabatic schemes relying on adiabatic Berry phase; fast geometrical quantum gates can be, in principle, implemented.