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quantum bit

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quantum bit
n.
The smallest unit of information in a computer designed to manipulate or store information through effects predicted by quantum physics. Unlike bits in classical systems, a quantum bit has more than two possible states: a state labeled 0, a state labeled 1, and a combination of the two states that obeys the superposition principle.
quantum bit
The smallest unit of information in a quantum computer. Unlike bits in classical systems, which are in one of two possible states labelled 1 and 0, a quantum bit exists in a superposition of these two states, settling on one or the other only when a measurement of the state is made. Also called qubit.
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While a conventional bit of information can have a value of only 0 or 1, a quantum bit, or qubit, exists as a combination of 0 and 1 simultaneously.
Best quantum messages travel in packs of six: experiment improves ... by Grossman, Lisa / Science News
Using our up-conversion technique, we have attained a performance of about 1 Mbit/s sifted key rate over 10 km of fiber with a low quantum bit error rate (QBER).
High speed quantum key distribution over optical fiber network system by Ma, Lijun; Mink, Alan; Tang, Xiao / Journal of Research of the National Institute of Standards and Technology
Researchers are struggling to build big enough quantum computers (with enough quantum bits or "qubits") and keep them isolated in a coherent state long enough to do real work.
Have commercial quantum computers finally arrived? by guardian.co.uk / guardian.co.uk
 
 
 
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