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Robust gates for holonomic quantum computation

Journal Article · · Physical Review. A
;  [1];  [2];  [3];  [3]
  1. Dipartimento di Fisica, Universita di Bari, I-70126 Bari (Italy)
  2. Dipartimento di Matematica, Universita di Bari, I-70125 Bari (Italy)
  3. NEST CNR-INFM and Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa (Italy)
Non-Abelian geometric phases are attracting increasing interest because of possible experimental application in quantum computation. We study the effects of the environment (modeled 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.
OSTI ID:
20974543
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 73; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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