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Charge-based quantum computing using single donors in semiconductors
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DOI：10.1103/PhysRevB.69.113301.png)
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Solid-state quantum computer architectures with qubits encoded using single atoms are now feasible given recent advances in the atomic doping of semiconductors. Here we present a charge qubit consisting of two dopant atoms in a semiconductor crystal, one of which is singly ionized. Surface electrodes control the qubit and a radio-frequency single-electron transistor provides fast readout. The calculated single gate times, of order 50 ps or less, are much shorter than the expected decoherence time. We propose universal one- and two-qubit gate operations for this system and discuss prospects for fabrication and scale up.
Keyword:
COOPER-PAIR BOX
ELECTRON-TRANSISTOR
STATE
READOUT
QUBITS
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
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