Deterministic generation of non-classical states by designed loss and quantum state diagnosis

• Grant number: 11/19696-0
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Duration: June 01, 2012 - May 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Valery Shchesnovich
• Grantee: Valery Shchesnovich
• Visiting researcher: Dmitri Mogilevtsev
• Visiting researcher institution: National Academy of Sciences of Belarus (NASB), Belarus
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

The primary aim of this project is to develop a realistic scheme for generation of non-classical states of electromagnetic radiation by the artificially designed nonlinear loss. Non-classical, non-Gaussian states are of great demand in quantum informatics and communications. Schemes involving the artificially designed nonlinear loss are potentially able to provide very robust generation of sequence of non-distinguishable state in a well-defined mode. The intention of this project is to investigate in more details existing proposals (especially ones suggested by the author of this project) and develop novel schemes, more stable with respect to linear losses than the previously suggested ones. The other line of the research in frame of this project is the diagnostics and reconstruction of generated non-classical quantum states. The efficient and simple procedures for determination of quantum state parameters, and for diagnostics of non-classicality are of great demand nowadays. Any quantum state generated in practice should be verified, since losses and unexpected noise can strongly distort the state. (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MOGILEVTSEV, D.; REHACEK, J.; HRADIL, Z.. Self-calibration for self-consistent tomography. NEW JOURNAL OF PHYSICS, v. 14, SEP 3 2012. (11/19696-0)

MOGILEVTSEV, D.; MALOSHTAN, A.; LEPESHKEVICH, S. V.; DZHAGAROV, B. M.. Spontaneous Emission of Singlet Oxygen Near Dielectric Nano-objects and Radiative Diagnostics of Bio-Objects. Journal of Fluorescence, v. 22, n. 6, p. 1415-1419, NOV 2012. (11/19696-0)

MOGILEVTSEV, D.; MIKHALYCHEV, A.; SHCHESNOVICH, V. S.; KOROLKOVA, N.. Nonlinear dissipation can combat linear loss. Physical Review A, v. 87, n. 6, JUN 28 2013. (11/19696-0)

MOGILEVTSEV, D.; IGNATENKO, A.; MALOSHTAN, A.; STOKLASA, B.; REHACEK, J.; HRADIL, Z.. Data pattern tomography: reconstruction with an unknown apparatus. NEW JOURNAL OF PHYSICS, v. 15, FEB 27 2013. (11/19696-0)

STRAUPE, S. S.; IVANOV, D. P.; KALINKIN, A. A.; BOBROV, I. B.; KULIK, S. P.; MOGILEVTSEV, D.. Self-calibrating tomography for angular Schmidt modes in spontaneous parametric down-conversion. Physical Review A, v. 87, n. 4, APR 15 2013. (11/19696-0)