تقرير
The role of quantum coherence in energy fluctuations
| العنوان: | The role of quantum coherence in energy fluctuations |
|---|---|
| المؤلفون: | Gherardini, S., Belenchia, A., Paternostro, M., Trombettoni, A. |
| المصدر: | Phys. Rev. A 104, L050203 (2021) |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Statistical Mechanics |
| الوصف: | We discuss the role of quantum coherence in the energy fluctuations of open quantum systems. To this aim, we introduce a protocol, to which we refer to as the end-point-measurement scheme, allowing to define the statistics of energy changes as a function of energy measurements performed only after the evolution of the initial state. At the price of an additional uncertainty on the initial energies, this approach prevents the loss of initial quantum coherences and enables the estimation of their effects on energy fluctuations. We demonstrate our findings by running an experiment on the IBM Quantum Experience superconducting qubit platform. Comment: 5+11 pages, 2+8 figures. This work supersedes arXiv:2006.06208. However, we decided to leave the latter on the arXiv in light of its own merits |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.104.L050203 |
| URL الوصول: | http://arxiv.org/abs/2106.06461 |
| رقم الأكسشن: | edsarx.2106.06461 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.104.L050203 |
|---|