qubit

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Related to Qudit: qubit

qu·bit

 (kyo͞o′bĭt′)

qubit

(ˈkjuːbɪt)
n
(Computer Science) computing a quantum bit
[C20: from qu(antum) + bit4]
Translations
qubit
qubit
qubit
qubit
References in periodicals archive ?
In figure 1 we can see that at low qudit dimension (up to d ~ 16) the protocol's security against noncoherent attack is higher when d+1 bases are used (when d = 2 it corresponds as noted above to greater security of six-state protocol than BB84 protocol).
QKD includes the following protocols: protocols using single (non-entangled) qubits (two-level quantum systems) and qudits (d-level quantum systems, d>2) (Bennett et al.
Because it has more energy levels, the physics of a qudit is richer than for just a single qubit.
Qudits can be used in quantum computers as well, and there are even cases where qudits could be used to speed up certain operations with a quantum computer," said Neeley.
However, in the qudit case, or the multipartite (many qudits) case, one faces difficulties because of the existence of incomparable states, namely states which cannot be transformed into each other by LOCC means.
The general qudit and/or multipartite case has some subtleties, as there are states which cannot be transformed into each other by LOCC operations with certainty, and thus, are incomparable using this criteria.
The 8 hyperfine levels of its ground state can be used to encode quantum information as a qudit with d = 3 bits.
Most research to date has focused on qubit systems, but we hope our experimental demonstration will motivate more effort on qudits, as an addition to the quantum information processing toolbox," he added.