Academic Journal
Quantum Synchronization and Entanglement of Dissipative Qubits Coupled to a Resonator
| العنوان: | Quantum Synchronization and Entanglement of Dissipative Qubits Coupled to a Resonator |
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| المؤلفون: | Alexei D. Chepelianskii, Dima L. Shepelyansky |
| المصدر: | Entropy, Vol 26, Iss 5, p 415 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | quantum synchronization, qubits, entanglement, quantum dissipation, Lindblad equation, Jaynes–Cummings model, Science, Astrophysics, QB460-466, Physics, QC1-999 |
| الوصف: | In a dissipative regime, we study the properties of several qubits coupled to a driven resonator in the framework of a Jaynes–Cummings model. The time evolution and the steady state of the system are numerically analyzed within the Lindblad master equation, with up to several million components. Two semi-analytical approaches, at weak and strong (semiclassical) dissipations, are developed to describe the steady state of this system and determine its validity by comparing it with the Lindblad equation results. We show that the synchronization of several qubits with the driving phase can be obtained due to their coupling to the resonator. We establish the existence of two different qubit synchronization regimes: In the first one, the semiclassical approach describes well the dynamics of qubits and, thus, their quantum features and entanglement are suppressed by dissipation and the synchronization is essentially classical. In the second one, the entangled steady state of a pair of qubits remains synchronized in the presence of dissipation and decoherence, corresponding to the regime non-existent in classical synchronization. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1099-4300 |
| Relation: | https://www.mdpi.com/1099-4300/26/5/415; https://doaj.org/toc/1099-4300; https://doaj.org/article/209c0fb168f0404d8eb8ded0b4cc08a5 |
| DOI: | 10.3390/e26050415 |
| الاتاحة: | https://doi.org/10.3390/e26050415 https://doaj.org/article/209c0fb168f0404d8eb8ded0b4cc08a5 |
| رقم الانضمام: | edsbas.13FE1C4C |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 10994300 |
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| DOI: | 10.3390/e26050415 |