Factorization of unitary matrices induced by 3D anisotropic Ising interaction

TL;DR

This paper demonstrates how anisotropic Ising interactions can be used to factorize unitary matrices, enabling the design of quantum gates through pulse sequences driven by magnetic fields in specific physical systems.

Contribution

It introduces a method to factorize unitary matrices using anisotropic Ising interactions, offering new approaches for quantum gate design in magnetic systems.

Findings

Unitary matrices can be factorized using anisotropic Ising interactions.

Quantum gates can be implemented as pulse sequences driven by magnetic fields.

Provides an alternative framework for quantum gate design in magnetic quantum systems.

Abstract

Quantum computation is a continuously growing research area which is based on nature and resources of quantum mechanics, as superposition and entanglement. In its quantum circuits version, the use of convenient and appropriate gates is essential. But while those gates adopt convenient forms for computational algorithms, their design depends on specific quantum systems and stu? being used. These gates need manage quantum systems based on physical interactions ruled by quantum Hamiltonians. With this, gates design is restricted to properties and limitations of interactions and physical elements being involved. This work shows how anisotropic Ising interactions, written in a non local basis, lets reproduce elementary operations in terms of which unitary processes can be factorized. In this sense, gates could be written as a sequence of pulses ruled by that interaction driven by magnetic fields, stating alternative results in quantum gates design for magnetic systems.