Previous schemes of nonadiabatic holonomic quantum computation were focused mainly on realizing a universal set of elementary gates. Multiqubit controlled gates could be built by decomposing them into a series of the universal gates. In this article, we propose an approach for realizing nonadiabatic holonomic multiqubit controlled gates in which a $(n+1)$-qubit controlled-$(boldsymbol{mathrm{n}cdot mathrm{sigma}})$ gate is realized by $(2n-1)$ basic operations instead of decomposing it into the universal gates, whereas an $(n+1)$-qubit controlled arbitrary rotation gate can be obtained by combining only two such controlled-$(boldsymbol{mathrm{n}cdot mathrm{sigma}})$ gates. Our scheme greatly reduces the operations of nonadiabatic holonomic quantum computation.
تحميل البحث