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Project List » Complex phenomena and processes in physics of quantum information

Complex phenomena and processes in physics of quantum information
proiecte.nipne.ro/pn2/62-projects.html
Extended website: http://www.theory.nipne.ro/~isar/idei.html

Acronym: INFOCUANT
Contracting Authority: Executive Agency for Higher Education, Research, Development and Innovation Funding (UEFISCDI)
Number / Date of the contract: 497/2009 / 15.01.2009
Idei
Project Manager: Aurelian Isar
Partners:
Starting date / finishing date: 2009-01-01 / 2011-10-31
Project value: 1 000 000 RON
Abstract: THE PROJECT PROPOSES AN INTERDISCIPLINARY STUDY OF SOME FUNDAMENTAL ASPECTS OF THE PHYSICS OF QUANTUM INFORMATION. THE DISCUSSION IDENTIFIES TWO BASIC DIRECTIONS OF INTEREST RELATED RESPECTIVELY TO:
(1) INTRINSIC PHENOMENON OF THE PHYSICAL INFORMATION;
(2) USE OF LOCALIZED OPTICAL VORTICES (OPTICAL VORTEX SOLITONS) AS INFORMATION CARRIERS IN ALL-OPTICAL INFORMATION PROCESSING SYSTEMS. AS A CONSEQUENCE, WE PROPOSE THE INVESTIGATION OF SEVERAL TOPICS CONCERNING FUNDAMENTAL QUANTUM CONSTRAINTS ON THE PHYSICAL INFORMATION AND, RESPECTIVELY, EXISTENCE, STABILITY AND ROBUSTNESS OF LOCALIZED OPTICAL VORTICES AS INFORMATION CARRIERS.
(I) THE REDUCTION OF DIMENSIONS OF THE INFORMATION CARRIER STRUCTURES DOWN TO NANOMETER SCALE RESULTS IN THE OCCURRENCE OF PHYSICAL EFFECTS FOLLOWING FROM THE QUANTUM UNCERTAINTY RELATIONS AND FROM THE IMPOSSIBILITY OF CONSIDERING THESE STRUCTURES AS ISOLATED SYSTEMS. THE CHARACTERIZATION OF THESE PHYSICAL EFFECTS REQUIRES THE DEFINITION OF PROPER OBSERVABLES AND OF METHODS OF QUANTITATIVE EVALUATION. WE SHALL CONSIDER: COVARIANT QUANTUM CHANNELS AND COVARIANT LIFTINGS; TIME EVOLUTION OF THE ENTANGLEMENT FOR GAUSSIAN STATES IN OPEN QUANTUM SYSTEMS; QUANTUM PROCESSOR.
(II) OPTICAL VORTEX SOLITONS CONSTITUTE A NEW RESOURCE IN THE PHYSICS OF QUANTUM INFORMATION AS THEY CAN CONVEY INFORMATION USING MULTIDIMENSIONAL ALPHABETS OR CAN DESCRIBE SPATIAL ENTANGLEMENT. WE SHALL IDENTIFY THE MEANS OF CREATION AND STABILIZATION TO AZIMUTHAL PERTURBATIONS OF BOTH SPATIAL AND SPATIOTEMPORAL LOCALIZED OPTICAL VORTICES.

Objectives:

THE STAGES OF THE PROJECT AND DELIVERY DATES
1. Study of the general structure of covariant quantum channels. Description of duality of covariant liftings and covariant quantum channels.  (2009-12-15)
2. Stabilization of spatial (two-dimensional) dissipative localized optical vortices. Stabilization of spatiotemporal (three-dimensional) dissipative localized optical vortices. (2010-10-31)
3. Study of the influence of quantum fluctuations and dissipation on the entanglement (quantum correlations) in bipartite open systems. Study of the time evolution of the entanglement for Gaussian bi-modal states. Investigation of the quantum processors built with the help of telecloning in the case when the quantum channel is a non-maximally entangled state. Generalization to the many-level systems of the quantum processor. (2011-10-31)
RESULTS
PUBLISHED ARTICLES
RESEARCH TEAM


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