Information and communication theory, as a research area, investigates the fundamental limits and principles governing the representation, transmission, processing, and storage of information in communication systems. It encompasses topics such as source and channel coding, rate–distortion theory, channel capacity, error-correcting codes, network information theory, and multi-user communication. The field develops mathematical models and performance bounds for noisy and noiseless channels, explores trade-offs among reliability, efficiency, latency, and complexity, and informs the design of practical communication protocols and coding schemes in digital communications, data networks, and distributed information-processing systems.
A team of researchers from University of Toronto Engineering has discovered hidden multi-dimensional side channels in existing quantum communication protocols.
Quantum Physics
Apr 1, 2025
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151
Rolf Landauer showed that "information is physical" with every bit equivalent to a small amount of energy proportional to temperature. The Landauer equivalent energy of information carried, or represented by matter, effectively ...
In the realm of quantum information distribution, sending a signal from point A to point B is like a baseball pitcher relaying a secret pitch call to the catcher. The pitcher has to disguise the signal from the opposing team ...
Quantum Physics
Feb 10, 2025
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55
Optical fibers are fundamental components in modern science and technology due to their inherent advantages, providing an efficient and secure medium for applications such as internet communication and big data transmission. ...
Optics & Photonics
Feb 7, 2025
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15
Entanglement is perhaps one of the most confusing aspects of quantum mechanics. On its surface, entanglement allows particles to communicate over vast distances instantly, apparently violating the speed of light. But while ...
Quantum Physics
Dec 23, 2024
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Researchers from Linköping University together with colleagues from Poland and Chile have confirmed a theory that proposes a connection between the complementarity principle and entropic uncertainty. Their study is published ...
Optics & Photonics
Dec 6, 2024
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122
New research from the University of Kent has demonstrated that quantum information could eventually be used to coordinate the actions of devices that can move, such as drones or autonomous vehicles. This could lead to more ...
Quantum Physics
Nov 19, 2024
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60
Much of modern life depends on the coding of information into means of delivering it. A common method is to encode data in laser light and send it through optic cables. The increasing demand for more information capacity ...
Optics & Photonics
Nov 11, 2024
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212
An international team of researchers has found a surprisingly simple relationship between the rates of energy and information transmission across an interface connecting two quantum field theories. Their work was published ...
Quantum Physics
Sep 13, 2024
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91
In the development of particle physics, researchers have introduced an innovative particle encoding mechanism that promises to improve how information in particle physics is digitally registered and analyzed. This new method, ...
General Physics
Aug 29, 2024
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