"an approach to computation based on properties of quantum mechanics, specifically those dealing with elementary units that may exist in multiple states simultaneously (in contrast with binary computers, whose basic elements always resolve to a 1 or 0)." (Judith S Hurwitz, "Cognitive Computing and Big Data Analytics", 2015)
"Quantum computing is a type of nonclassical computing that operates on the quantum state of subatomic particles. The particles represent information as elements denoted as quantum bits (qubits). A qubit can represent all possible values simultaneously (superposition) until read. Qubits can be linked with other qubits, a property known as entanglement. Quantum algorithms manipulate linked qubits in their undetermined, entangled state, a process that can address problems with vast combinatorial complexity" (Gartner)
"is the emerging field of computer sciences that aims to harness a radically different framework of information processing, called quantum mechanics. Much like classical computing, the field includes both the quantum version of information sciences, but also the physical development of systems that can take advantage of quantum information sciences." (Accenture)
"Quantum computing is a new approach to calculation that uses principles of fundamental physics to solve extremely complex problems very quickly." (McKinsey & Co, 2024)[link]
"Quantum computing is an area of computing focused on developing computer technology based on the principles of quantum theory, which explains the behaviour of energy and material on the atomic and subatomic levels." (European Parliment)
"Quantum computing is an emergent field of cutting-edge computer science harnessing the unique qualities of quantum mechanics to solve problems beyond the ability of even the most powerful classical computers." (IBM) [link]
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