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G. Florio

Publications and source records attributed to G. Florio.

21 records · Page 2Linked to original sources

Robust gates for holonomic quantum computation

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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Implementation of analytic functions with quantum gates

In order to realize a Quantum CPU some schemes for executing fundamental mathematical tasks are needed. In this paper we present some quantum circuits which, using elementary arithmetic operations, allow an approximated calculation of continuous functions. Furthermore, we give an explicit example of our procedure applied to the exponential function.

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Quantum implementation of elementary arithmetic operations

Quantum computation has received great attention in recent years for its possible application to difficult problem in classical calculation. Despite the experimental problems of implementing quantum devices, theoretical physicists have tried to conceive some implementations for quantum algorithms. We present here some explicit schemes for executing elementary arithmetic operations.

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