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Semiconductor-based Geometrical Quantum Gates

Paolo Solinas·Paolo Zanardi·Nino Zangh\`ı·Fausto Rossi
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Abstract

We propose an implementation scheme for holonomic, i.e., geometrical, quantum information processing based on semiconductor nanostructures. Our quantum hardware consists of coupled semiconductor macroatoms addressed/controlled by ultrafast multicolor laser-pulse sequences. More specifically, logical qubits are encoded in excitonic states with different spin polarizations and manipulated by adiabatic time-control of the laser amplitudes . The two-qubit gate is realized in a geometric fashion by exploiting dipole-dipole coupling between excitons in neighboring quantum dots.

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Paolo Solinas, Paolo Zanardi, Nino Zangh\`ı, Fausto Rossi. 2003-02-13. Semiconductor-based Geometrical Quantum Gates. https://doi.org/10.1103/physrevb.67.121307

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