نتایج جستجو برای: mean values

تعداد نتایج: 1016095  

Journal: :Transactions of the American Mathematical Society 1972

Journal: :Journal of Mathematical Analysis and Applications 1987

Journal: :Proceedings of the American Mathematical Society 2001

Journal: :Mathematical Inequalities & Applications 2011

Journal: :Functiones et Approximatio Commentarii Mathematici 2017

Journal: :Journal of Mathematical Analysis and Applications 1999

Journal: :Mathematical Inequalities & Applications 2014

Journal: :Mathematics of Computation 1984

Journal: :Nature Physics 2021

We consider the task of estimating expectation value an $n$-qubit tensor product observable $O_1\otimes O_2\otimes \cdots \otimes O_n$ in output state a shallow quantum circuit. This is cornerstone variational algorithms for optimization, machine learning, and simulation many-body systems. Here we study its computational complexity constant-depth circuits three types single-qubit observables $O...

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