Work

Extended techniques for feedback control of a single qubit

Year: 2013

Type: article

Abstract: The protection of quantum states is challenging for nonorthogonal states, especially in the presence of noise. Recent research shows that this difficulty can be overcome by feedback control with weak measurements. However, the state-protection schemes proposed recently work optimally only for special quantum states. In this paper, by applying different weak measurements, we extend the idea of the state-protection scheme to include protecting general states. We calculate numerically the optimal parameters and discuss the performance of the scheme. Comparison between this extended scheme and the earlier scheme is also presented.

Source: Physical Review A

DOI: 10.1103/physreva.87.012333

Authors: Y. Yang, X. Y. Zhang, J. Ma, X. X. Yi

Institutions: Dalian University of Technology, Shenyang Pharmaceutical University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2335078433

FWCI: 1.097

Cites: 24

Cited by: 15

Related to: 10