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‘Physicists believe that the quantum states of the electrons can be used as quantum bits - or qubits - for encoding data in a superfast quantum computer.’
‘The team is now working to create a quantum gate in which two or more qubits of the register will interact in a controlled way.’
‘When two Josephson junctions are connected through a standard capacitor, the application of a small a.c. voltage pulse to the first qubit can cause the two qubits to oscillate between two combined states.’
‘Quantum teleportation is the transferring of tiny units of computer information, called quantum bits or qubits, from one location to another.’
‘The newly-built quantum computer consists of seven qubits, each corresponding to one nucleus in a large molecule.’
‘The researchers believe that these logic gates could be scaled up to include many qubits in a large, workable quantum computer.’
‘Ions are arguably the leading candidate for use as qubits in a quantum computer.’
‘When a quantum computer tries to copy a qubit, it forces the qubit to become either one or zero and destroys the information.’
‘But to perform the logic operations vital to a quantum computer, two qubits have to become entangled.’
‘But if quantum theorists are correct, quantum bits, or qubits, will enable more efficient problem solving because a qubit can simultaneously encode both a zero and a one.’
‘The original qubit's quantum properties would be teleported to another qubit as the original qubit is measured.’
‘May 4, 1998 after decades of theoretical physics, a 2 qubit quantum computer capable of loading data and reading out a result is announced.’
‘The new work shows how a well-specified bath affects the qubits in a crystal which behaves as a very primitive quantum computer.’
‘In principle, tasks such as quantum cryptography, secret sharing and dense coding all benefit from using qudits larger than the qubit.’
‘The ability to couple qubits to photons, demonstrated by the Yale group, could allow qubits on a chip to be wired together via a ‘quantum information bus’ carrying single photons.’
‘The atoms can act as quantum bits, or qubits, with internal sub-states functioning as the ubiquitous and 1s of computing.’
‘The resolution of this addressing technique is about two thousandths of a millimetre - over a length of one millimetre, therefore, several hundred qubits could be stored.’
‘A powerful quantum computer that could realize the remarkable potential of quantum computing would need at least many thousands of qubits.’
‘Quantum computers have the potential to be blazingly fast because a string of quantum bits, or qubits, that store the ones and zeros of computer information can represent all the numbers possible within that string at once.’
‘The two gates are the one-qubit rotation gate which controls the state of one qubit, and the controlled-NOT (C-NOT) gate which works as a conditional gate for two qubits.’
Origin
1990s: from qu antum bit, with punning allusion to cubit.