quantum bit

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• quantum bit — /kwɒntəm ˈbɪt/ (say kwontuhm bit) noun the smallest unit of information in a computer operating within a quantum system in which it has three values, namely a state labelled 0, a state labelled 1, and a state which is a combination of the two …  

• quantum bit — noun the basic unit of information in a quantum computer …   English new terms dictionary

• Quantum digital signature — A Quantum Digital Signature (QDS) refers to the quantum mechanical equivalent of either a classical digital signature or, more generally, a handwritten signature on a paper document. Like a handwritten signature, a digital signature is used to… …   Wikipedia

• Bit — This article is about the unit of information. For other uses, see Bit (disambiguation). Fundamental units of information bit (binary) nat (base e) ban (decimal) qubit (quantum) This box …   Wikipedia

• quantum computer — ▪ computer science       device that employs properties described by quantum mechanics to enhance computations.       As early as 1959 the American physicist and Nobel laureate Richard Feynman (Feynman, Richard P.) noted that, as electronic… …   Universalium

• quantum computer — /kwɒntəm kəmˈpjutə/ (say kwontuhm kuhm pyoohtuh) noun a computer which relies on the quantum bit as the fundamental unit of information …  

• Quantum error correction — is used in quantum computing to protect quantum information from errors due to decoherence and other quantum noise. Quantum error correction is essential if one is to achieve fault tolerant quantum computation that can deal not only with noise on …   Wikipedia

• Quantum cryptography — Quantum cryptography, or quantum key distribution (QKD), uses quantum mechanics to guarantee secure communication. It enables two parties to produce a shared random bit string known only to them, which can be used as a key to encrypt and decrypt… …   Wikipedia

• Quantum game theory — Quantum game theory, concisely put, is an extension of classical game theory to the quantum domain. It differs from classical game theory in three primary ways: #Superposed initial states, #Quantum Entanglement of initial states, #Superposition… …   Wikipedia

• Quantum Link — (or Q Link) was a U.S. and Canadian online service for Commodore 64 and 128 personal computers that operated from November 5, 1985 to November 1, 1994. It was operated by Quantum Computer Services of Vienna, Virginia, which in October 1991… …   Wikipedia

• Quantum Effect Devices — was a company originally named Quantum Effect Design, incorporated in 1991. The three founders, Tom Riordan, Earl Killian and Ray Kunita were senior managers at MIPS Computer Systems Inc.. They left MIPS at a time when the company was having a… …   Wikipedia