Work

Time-delay effects and simplified control fields in quantum Lyapunov control

Year: 2011

Type: article

Abstract: Lyapunov-based quantum control has the advantage that it is free from the measurement-induced decoherence and it includes the instantaneous information of the system in the control. The Lyapunov control is often confronted with time delay in the control fields and difficulty in practical implementations of the control. In this paper, we study the effect of time delay on the Lyapunov control and explore the possibility of replacing the control field with a pulse train or a bang–bang signal. The efficiency of the Lyapunov control is also presented through examining the convergence time of the system. These results suggest that the Lyapunov control is robust against time delay, easy to realize and effective for high-dimensional quantum systems.

Source: Journal of Physics B Atomic Molecular and Optical Physics

DOI: 10.1088/0953-4075/44/19/195503

Authors: X X Yi, S L Wu, Chunfeng Wu, X L Feng, C H Oh

Institutions: Centre for Quantum Technologies, National University of Singapore, Dalian University of Technology

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2012823424

FWCI: 2.359

Cites: 19

Cited by: 17

Related to: 10