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Qubit

Known as: Quibit, Quantum bit, Qubits 
In quantum computing, a qubit (/ˈkjuːbɪt/) or quantum bit (sometimes qbit) is a unit of quantum information—the quantum analogue of the classical bit… 
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Related topics

Related topics

50 relations
Ancilla bitBB84BQPBasis (linear algebra)
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Broader (2)

Quantum computingQuantum information science

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2014
Highly Cited
2014
Evidence for quantum annealing with more than one hundred qubits
Quantum annealing is expected to solve certain optimization problems more efficiently, but there are still open questions… 
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Highly Cited
2010
Highly Cited
2010
Quantum discord for two-qubit X states
Quantum discord, a kind of quantum correlation, is defined as the difference between quantum mutual information and classical… 
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Highly Cited
2007
Highly Cited
2007
Manipulation and detection of a trapped Yb+ hyperfine qubit
We demonstrate the use of trapped ytterbium ions as quantum bits for quantum information processing. We implement fast, efficient… 
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Highly Cited
2003
Highly Cited
2003
Geometric theory of nonlocal two-qubit operations
We study nonlocal two-qubit operations from a geometric perspective. By applying a Cartan decomposition to su(4), we find that… 
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Highly Cited
2002
Highly Cited
2002
Four qubits can be entangled in nine different ways
We consider a single copy of a pure four-partite state of qubits and investigate its behavior under the action of stochastic… 
Highly Cited
2001
Highly Cited
2001
Encoding a qubit in an oscillator
Quantum error-correcting codes are constructed that embed a finite-dimensional code space in the infinite-dimensional Hilbert… 
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Highly Cited
2000
Highly Cited
2000
Three qubits can be entangled in two inequivalent ways
Invertible local transformations of a multipartite system are used to define equivalence classes in the set of entangled states… 
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Highly Cited
1999
Highly Cited
1999
Demonstrating the viability of universal quantum computation using teleportation and single-qubit operations
Algorithms such as quantum factoring and quantum search illustrate the great theoretical promise of quantum computers; but the… 
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Highly Cited
1999
Highly Cited
1999
Josephson-junction qubits with controlled couplings
Quantum computers, if available, could perform certain tasks much more efficiently than classical computers by exploiting… 
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Highly Cited
1998
Highly Cited
1998
Entanglement of Formation of an Arbitrary State of Two Qubits
The entanglement of a pure state of a pair of quantum systems is defined as the entropy of either member of the pair. The… 
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