Quantum Computing Archivi

The logical qubit and the correction of quantum errors

Physical Qubit vs Logical Qubit As discussed in the previous article, the unit of information processed by a quantum computer is generically called a qubit or quantum bit. However, for...

Grover’s Quantum Algorithm

04 Feb

Introduction With the 1996 paper “A fast quantum mechanical algorithm for database search”, the Indian-American computer scientist Lov K. Grover helped highlight the non-negligible impact of quantum computing on the...

The Qubit: introduction to quantum algorithms

27 Dec

Introduction In popular science contexts, the quantum computer is sometimes labeled as a particular computer that is “incredibly faster.” Although this characterization is not entirely detached from reality, some clarifications...

The Quantum Computing

26 Nov

Quantum computing history By the end of the twentieth century, experimental physics had been transformed by the technological rise of classical computers. Among many breakthroughs, the ability to simulate the...

War and cryptography: the challenge of quantum communication

16 Jun

Message encryption has always been a very important tool within the military, stretching back to the time of the ancient Greeks to the present day. It is natural for two...