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What is Photon

Encyclopedia of Information Science and Technology, Fourth Edition
A discrete packet of electromagnetic energy.
Published in Chapter:
Quantum Computing and Quantum Communication
Göran Pulkkis (Arcada University of Applied Sciences, Finland) and Kaj J. Grahn (Arcada University of Applied Sciences, Finland)
Copyright: © 2018 |Pages: 16
DOI: 10.4018/978-1-5225-2255-3.ch671
This article presents state-of-the-art and future perspectives of quantum computing and communication. Timeline of relevant findings in quantum informatics, such as quantum algorithms, quantum cryptography protocols, and quantum computing models, is summarized. Mathematics of information representation with quantum states is presented. The quantum circuit and adiabatic models of quantum computation are outlined. The functionality, limitations, and security of the quantum key distribution (QKD) protocol is presented. Current implementations of quantum computers and principles of quantum programming are shortly described.
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Current Quantum Information Science and Technology
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Quantum Cryptography Protocols for Information Security
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Physics, Modelling, and Optimization Studies of Photon-Enhanced Thermionic Emission-Based Hybrid Energy Conversion System: A Review
A photon is the quantum of electromagnetic radiation. A photon is a particle of light defined as a discrete bundle or quantum of electromagnetic radiation or light.
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