Robust gates for holonomic quantum computation

Details Robust gates for holonomic quantum computation Robust gates for holonomic quantum computation

2005-10-31

arxiv.org/abs/quant-ph/0510226v2

Phys. Rev. A 73, 022327 (2006)

Physics

Quantum Physics

11 pages, 6 figures

Scientific paper

10.1103/PhysRevA.73.022327

Non Abelian geometric phases are attracting increasing interest because of possible experimental application in quantum computation. We study the effects of the environment (modelled as an ensemble of harmonic oscillators) on a holonomic transformation and write the corresponding master equation. The solution is analytically and numerically investigated and the behavior of the fidelity analyzed: fidelity revivals are observed and an optimal finite operation time is determined at which the gate is most robust against noise.

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