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.
Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and we die, in exactly that ...
Quantum Physics
Jan 29, 2026
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Quantum key distribution (QKD) is an emerging communication technology that utilizes quantum mechanics principles to ensure highly secure communication between two parties. It enables the sender and receiver to generate a ...
Quantum Physics
Jan 19, 2026
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From claims that vaccines don't work to manipulated images and deliberately misrepresenting what politicians say, social media is often rife with misinformation. But far from being a recent phenomenon, there is nothing new ...
A math theory powering computer image compression, an "invisibility cloak" or the science behind the James Webb Space Telescope are some achievements that could be honored when the Nobel physics prize is awarded Tuesday.
Quantum Physics
Oct 7, 2025
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In the era of instant data exchange and growing risks of cyberattacks, scientists are seeking secure methods of transmitting information. One promising solution is quantum cryptography—a quantum technology that uses single ...
Optics & Photonics
Oct 2, 2025
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25
A new class of highly efficient and scalable quantum low-density parity-check error correction codes, capable of performance approaching the theoretical hashing bound, has been developed by scientists at the Institute of ...
Quantum Physics
Sep 29, 2025
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For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the bending of space and time.
General Physics
Sep 24, 2025
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Despite the modern world relying heavily on digital optical communication, there has not been a significant improvement in the minimum attenuation—a measure of the loss of optical power per kilometer traveled—of optical ...
In a first-of-its-kind experiment, engineers at the University of Pennsylvania brought quantum networking out of the lab and onto commercial fiber-optic cables using the same Internet Protocol (IP) that powers today's web.
Optics & Photonics
Aug 28, 2025
1
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The internet, social media, and digital technologies have completely transformed the way we establish commercial, personal and professional relationships. At its core, this society relies on the exchange of information that ...
Quantum Physics
Aug 26, 2025
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