A universal system for decoding any type of data sent across a network

MIT News  September 9, 2021 An international team of researchers (USA – MIT, Boston University, Ireland) has created the first silicon chip which, unlike most error correcting codes, is able to decode any code, regardless of its structure, with maximum accuracy, using a universal decoding algorithm called Guessing Random Additive Noise Decoding (GRAND). GRAND works by guessing the noise that affected the message and uses the noise pattern to deduce the original information. It generates a series of noise sequences in the order they are likely to occur, subtracts them from the received data, and checks to see if the […]

Error-prone quantum bits could correct themselves, physicists show

Phys.org  December 9, 2020 One of the chief obstacles facing quantum computer designers is correcting the errors that creep into a processor’s calculations. A team of researchers in the US (NIST, University of Maryland, Caltech) is experimenting with a photonic cavity resonator into which multiple photons can be driven to bounce back and forth between the cavity’s reflective walls. The photons combine to form ripple-like interference patterns. The patterns themselves contain the qubit’s information. Rather than construct an elaborate system to detect, measure and compensate for noise and errors, the team members perceived that if the supply of photons in […]