REDUCING RESOURCES IN QUANTUM CIRCUITS

A method of minimizing a cost function of a quantum computation is provided. The method comprises receiving input of an initial state of a quantum problem instance comprising a Hamiltonian with an associated cost function. The Hamiltonian is converted into a number of Pauli strings, which are used t...

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Main Authors THOMPSON, RICHARD JOEL, LOWELL, JOHN R, KAGELE, MARNA M, WILLIAMS, KRISTEN SMITH, NGUYEN, NAM HOANG
Format Patent
LanguageEnglish
French
Published 08.09.2023
Subjects
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
PHYSICS
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Abstract A method of minimizing a cost function of a quantum computation is provided. The method comprises receiving input of an initial state of a quantum problem instance comprising a Hamiltonian with an associated cost function. The Hamiltonian is converted into a number of Pauli strings, which are used to form an operator pool. The Pauli strings in the operator pool are ranked according to how much they lower a value of the cost function with respect to the initial state. Pauli strings are iteratively added from the operator pool to a parameterized quantum circuit, in a manner to minimize circuit depth, until a variational quantum eigensolver (VQE) algorithm converges to an approximate ground state wave function generated by the parameterized quantum circuit.
AbstractList A method of minimizing a cost function of a quantum computation is provided. The method comprises receiving input of an initial state of a quantum problem instance comprising a Hamiltonian with an associated cost function. The Hamiltonian is converted into a number of Pauli strings, which are used to form an operator pool. The Pauli strings in the operator pool are ranked according to how much they lower a value of the cost function with respect to the initial state. Pauli strings are iteratively added from the operator pool to a parameterized quantum circuit, in a manner to minimize circuit depth, until a variational quantum eigensolver (VQE) algorithm converges to an approximate ground state wave function generated by the parameterized quantum circuit.
Author KAGELE, MARNA M
THOMPSON, RICHARD JOEL
NGUYEN, NAM HOANG
LOWELL, JOHN R
WILLIAMS, KRISTEN SMITH
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DocumentTitleAlternate REDUCTION DES RESSOURCES DANS LES CIRCUITS QUANTIQUES
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Snippet A method of minimizing a cost function of a quantum computation is provided. The method comprises receiving input of an initial state of a quantum problem...
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SubjectTerms CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
PHYSICS
Title REDUCING RESOURCES IN QUANTUM CIRCUITS
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