تقرير
Fate of False Vacuum in Superconducting Flux Qubits
| العنوان: | Fate of False Vacuum in Superconducting Flux Qubits |
|---|---|
| المؤلفون: | Rad, Ali Izadi, Zandi, Hesam, Fardmanesh, Mehdi |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter High Energy Physics - Theory |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, High Energy Physics - Theory |
| الوصف: | We propose a similarity between the scenario of fate of false vacuum in cosmology at early universe and the situation in where the quantum state decays in superconducting Flux qubit. This is due to the fact that both cases have two homogeneous stable equilibrium states in scalar field, which in quantum theory, could penetrate through the barrier in different possibilities and hence considered unstable decaying in time. In quantum computation, decay rate is among the most important factors in characteristics of the system like coherency, reliability, measurement fidelity, etc. In this considered potential, the decay rate from the penetrating (False vacuum) state to the stable (absolute minimum) state is achieved to leading order in Planck constant by the approach of Instanton model. In case of the superconducting flux qubit having thin barrier potential, the decay rate is calculated and its relations with actual set of parameters in flux qubit design are introduced. Comment: Submitted to IEEE Transactions Applied Superconductivity. arXiv admin note: text overlap with arXiv:1403.5762 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1411.7253 |
| رقم الأكسشن: | edsarx.1411.7253 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |