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| Format: | Artículo científico |
| Language: | en |
| Published: |
Instituto Politécnico Nacional
2008
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| Online Access: | https://www.redalyc.org/articulo.oa?id=61511407 |
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Table of Contents:
- Qubits structure as an enhancement factor of coherence in a one-way quantum computer Isidro Valentín Rodríguez Magally Martínez Reyes Manuel Ávila Aoki Computación Qubit spurious structure form factors dipolar coupling Present day´s efforts for building up an operative quantum computer soon will take shape. One of the mainchallenges to this task is to implement qubit coherence in a practical way. We make emphasis on the structure ofthe nuclear qubits in a one-way quantum computer as a source of coherence enhancement. The form factor,accounting for the nuclear qubit structure of the model, is the magnetogyric ratio γ (more commonly called thegyromagnetic ratio). We collect experimental values for γ and calculate the respective times of coherence T h ,for a number of materials. A parametrization is also given for γ , in terms of the atomic number, whose agreementwith the experiment is very good. We also calculate, accurately enough, bounds to the corrections to T h due tospurious dipolar coupling between nuclei because this has not been done in the past. Such corrections arenegligible for nearby planes whereas for remote planes they might be of considerable size. It is concluded that thenuclei states last longer than their electronic counterpart. However, this stability of nuclei qubits limits the speedat which the computer can carry out instructions and process the information. 2008 artículo científico 1405-5546 https://www.redalyc.org/articulo.oa?id=61511407 en http://www.redalyc.org/revista.oa?id=615 Computación y Sistemas application/pdf Instituto Politécnico Nacional Computación y Sistemas (México) Num.4 Vol.11