Geometric phase gate on an optical transition for ion trap quantum computation

Details Geometric phase gate on an optical transition for ion trap quantum computation Geometric phase gate on an optical transition for ion trap quantum computation

2007-10-21

arxiv.org/abs/0710.3950v2

Phys. Rev. A 77, 050303(R) (2008)

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.77.050303

We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric dipole transitions, the gate has many interesting properties, such as very low spontaneous emission rates, applicability to magnetic field insensitive states, and use of a co-propagating laser beam geometry. We estimate that current technology allows for infidelities of around 10$^{-4}$.

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