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Trapped Ion Quantum Computing
High-fidelity ion-trap quantum computing with hyperfine clock states
arXiv
Authors: L. Aolita, K. Kim, J. Benhelm, C. F. Roos, H. Häffner
Year
2007
Paper ID
49554
Status
Preprint
Abstract Read
~2 min
Abstract Words
95
Citations
N/A
Abstract
We propose the implementation of a geometric-phase gate on magnetic-field-insensitive qubits with hatσz-dependent forces for trapped ion quantum computing. The force is exerted by two laser beams in a Raman configuration. Qubit-state dependency is achieved by a small frequency detuning from the virtually-excited state. Ion species with excited states of long radiative lifetimes are used to reduce the chance of a spontaneous photon emission to less than 10-8 per gate-run. This eliminates the main source of gate infidelity of previous implementations. With this scheme it seems possible to reach the fault tolerant threshold.
Why This Paper Matters
- This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
- It adds a 2007 reference point for readers tracking recent quantum research.
- We propose the implementation of a geometric-phase gate on magnetic-field-insensitive qubits with hatσ^z-dependent forces for trapped ion quantum computing.
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