Abstract
We propose a new implementation of a universal set of one- and two-qubit\ngates for quantum computation using the spin states of coupled single-electron\nquantum dots. Desired operations are effected by the gating of the tunneling\nbarrier between neighboring dots. Several measures of the gate quality are\ncomputed within a newly derived spin master equation incorporating decoherence\ncaused by a prototypical magnetic environment. Dot-array experiments which\nwould provide an initial demonstration of the desired non-equilibrium spin\ndynamics are proposed.\n
Keywords
Quantum decoherenceQuantum computerQuantum dotUniversal setQuantum tunnellingPhysicsQuantum mechanicsSpin (aerodynamics)Quantum gateComputationQuantum error correctionQuantumSet (abstract data type)Computer scienceAlgorithm
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Publication Info
- Year
- 1998
- Type
- article
- Volume
- 57
- Issue
- 1
- Pages
- 120-126
- Citations
- 6619
- Access
- Closed
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Cite This
Daniel Loss,
David P. DiVincenzo
(1998).
Quantum computation with quantum dots.
Physical Review A
, 57
(1)
, 120-126.
https://doi.org/10.1103/physreva.57.120
Identifiers
- DOI
- 10.1103/physreva.57.120