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Quantum Communication and Information Processing

Type of study Follow-up Master
Language of instruction Czech
Code 440-4205/01
Abbreviation KKZI
Course title Quantum Communication and Information Processing
Credits 4
Coordinating department Department of Telecommunications
Course coordinator doc. Ing. Jan Nedoma, Ph.D.

Subject syllabus

Classical coherent optical communications
. Amplitude and phase modulation of laser radiation
. Heterodyne and homodyne optical receiver
. Influence of transmission channel to coherent communications
. Coherent systems with usage of PSK, DPSK, ASK, FSK modulations
. Comparison of coherent and incoherent optical communications

Quantum states of light for communication purposes
. Quantum noise of light
. Coherent states of light and their detection
. Transmission of coherent states in communication channel
. Condensed states of light, their generation and detection
. Single photon states of light, their generation and detection
. Quantum bits and quantum continuous (analog) signals

Quantum communication with coherent laser radiation with homodyne detection
. Principle scheme of quantum key distribution with homodyne detector
. Calculation of security
. Robust protocols to losses, influence of electronic noise of detector, laser noises, and noises in transmission channel
. Protocols with condensed and linked states of light
. Quantum teleportation, quantum repeaters and quantum networks
. Experimental realisation

Quantum communication with individual photons and weak quantum states
. Principal scheme of quantum key distribution with single photon detector
. Calculation of security
. Robust protocols to losses, influence of electronic noise of detector, laser noises, and noises in transmission channel
. Protocols with linked states, test of Bell inequalities
. Quantum teleportation, quantum repeaters and quantum networks
. Experimental realisation

E-learning

The materials are available in the LMS system or by agreement with the subject guarantor.

Literature

S. Betti, G. Demarchis, E. Innone, Coherent Optical Communications Systéme, J. Wiley & Sons, 1995.
G.P. Agrawal, Fiber-Optic Communication Systems, J. Wiley & Sons, 2002.
H.-A. Bachor, T. C. Ralph, A Guide to Experiments in Quantum Optics, J. Wiley & Sons, 2004.
E. Desurvire, Classical and Quantum Information Theory: An Introduction for the Telecom Scientist, Cambridge University Press, 2009.

Advised literature

N.J. Cerf; G. Leuchs; E.S. Polzik, Quantum Information with Continuous Variables of Atoms and Light, Imperial College Press, 2007.
N. Gisin, G. Ribordy, W. Tittel, and H. Zbinden, Quantum cryptography, Rev. Mod. Phys. 74, 145 (2002).