Remarks on controlled measurement and quantum algorithm for calculating Hermitian conjugate

Fuente: arXiv
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Main Authors: Fel'dman, Edward B., Zenchuk, Alexander I., Qi, Wentao, Wu, Junde
Format: Preprint
Published: 2025
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author Fel'dman, Edward B.
Zenchuk, Alexander I.
Qi, Wentao
Wu, Junde
author_facet Fel'dman, Edward B.
Zenchuk, Alexander I.
Qi, Wentao
Wu, Junde
contents We present two new aspects for the recently proposed algorithms for matrix manipulating based on the special encoding the matrix elements into the superposition state of a quantum system. First aspect is the controlled measurement which allows to avoid the problem of small access probability to the required ancilla state at the final step of algorithms needed to remove the garbage of the states. Application of controlled measurement to the earlier developed algorithm is demonstrated. The second aspect is the algorithm for calculating the Hermitian conjugate of an arbitrary matrix, which supplements the algorithms proposed earlier. The appropriate circuits are presented.
format Preprint
id arxiv_https___arxiv_org_abs_2501_16028
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Remarks on controlled measurement and quantum algorithm for calculating Hermitian conjugate
Fel'dman, Edward B.
Zenchuk, Alexander I.
Qi, Wentao
Wu, Junde
Quantum Physics
We present two new aspects for the recently proposed algorithms for matrix manipulating based on the special encoding the matrix elements into the superposition state of a quantum system. First aspect is the controlled measurement which allows to avoid the problem of small access probability to the required ancilla state at the final step of algorithms needed to remove the garbage of the states. Application of controlled measurement to the earlier developed algorithm is demonstrated. The second aspect is the algorithm for calculating the Hermitian conjugate of an arbitrary matrix, which supplements the algorithms proposed earlier. The appropriate circuits are presented.
title Remarks on controlled measurement and quantum algorithm for calculating Hermitian conjugate
topic Quantum Physics
url https://arxiv.org/abs/2501.16028