Generation of n-qubit W states using Spin Torque
Quantum Physics
2020-07-01 v1 Mesoscale and Nanoscale Physics
Abstract
We examine here a scheme to generate a W state of an n-qubit system with all-to-all pairwise exchange interaction between n qubits. This relies on sharing of superposed excitations of a smaller number of qubits among others. We present a bound on the maximal jumps from q to n and formalize a scheme to generate state in stages. We demonstrate this scheme in the context of spin torque based quantum computing architecture that are characterized by repeated interactions between static and flying qubits.
Cite
@article{arxiv.1912.03171,
title = {Generation of n-qubit W states using Spin Torque},
author = {Amritesh Sharma and Ashwin A. Tulapurkar},
journal= {arXiv preprint arXiv:1912.03171},
year = {2020}
}