I recently wrote an article on The Conversation about potential attacks by quantum computers on cryptocurrencies. It is based on our research paper “Quantum attacks on bitcoin, and how to protect against them” as well as some additional research I did since then.
One of the quintessential topics in quantum information theory is the study of reliable quantum information transmission over noisy quantum channels. Let us consider a communication scheme between two parties connected by a memoryless communication channel that can be used many times in sequence. The sender first encodes a quantum state into a sequence of registers and […]