Proceedings of the International Workshop "Quantum Entanglement in Physical and Information Sciences" Centro di Ricerca Matematica Ennio DeGiorgi, Scuola Normale Superiore; December 14—18, 2004, Pisa, Italy – Eds. C. Macchiavello, R. Fazio and G. M. PalmaNo Access

EFFECTS OF NOISE ON SPIN NETWORK CLONING

GABRIELE DE CHIARA

NEST-INFM & Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy

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ROSARIO FAZIO

NEST-INFM & Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy

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SIMONE MONTANGERO

NEST-INFM & Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy

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CHIARA MACCHIAVELLO

INFM & Dipartimento di Fisica "A. Volta", Via Bassi 6, I-27100 Pavia, Italy

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, and

G. MASSIMO PALMA

NEST-INFM & Dipartimento di Tecnologie dell'Informazione, Universita' degli studi di Milano, via Bramante 65, I-26013 Crema (CR), Italy

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https://doi.org/10.1142/S0219749906001906Cited by:0 (Source: Crossref)

Abstract

We analyze the effects of noise on quantum cloning based on the spin network approach. A noisy environment interacting with the spin network is modeled both in a classical scenario, with a classical fluctuating field, and in a fully quantum scenario, in which the spins are coupled with a bath of harmonic oscillators. We compare the realization of cloning with spin networks and with traditional quantum gates in the presence of noise, and show that spin network cloning is more robust.

Keywords:

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