A potential implementation of quantum-computation/information schemes in semiconductor-based structures is investigated. In particular, an array of quantum dots is shown to be an ideal quantum register for a noiseless information encoding. In addition to the suppression of phase-breaking processes in quantum dots due to the well-known phonon bottleneck, we show that a proper quantum encoding allows to realize a decoherence-free evolution on a time-scale long compared to the femtosecond scale of modern ultrafast laser technology.

Quantum information in semiconductor-based nanostructures / Zanardi, P.; Rossi, Fausto. - In: PHYSICA. B, CONDENSED MATTER. - ISSN 0921-4526. - STAMPA. - 272:1-4(1999), pp. 57-60. [10.1016/S0921-4526(99)00346-4]

Quantum information in semiconductor-based nanostructures

ROSSI, FAUSTO
1999

Abstract

A potential implementation of quantum-computation/information schemes in semiconductor-based structures is investigated. In particular, an array of quantum dots is shown to be an ideal quantum register for a noiseless information encoding. In addition to the suppression of phase-breaking processes in quantum dots due to the well-known phonon bottleneck, we show that a proper quantum encoding allows to realize a decoherence-free evolution on a time-scale long compared to the femtosecond scale of modern ultrafast laser technology.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1405218
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