تقرير
Quantum state tomography of photon's polarization and path degrees of freedom
| العنوان: | Quantum state tomography of photon's polarization and path degrees of freedom |
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| المؤلفون: | Ferreira, J. L. Montenegro, Bernardo, B. de Lima |
| سنة النشر: | 2023 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Quantum state tomography (QST), the process through which the density matrix of a quantum system is characterized from measurements of specific observables, is a fundamental pillar in the fields of quantum information and computation. In this work, we propose a simple QST method to reconstruct the density matrix of two qubits encoded in the polarization and path degrees of freedom of a single photon, which can be realized with a single linear-optical setup. We demonstrate that the density matrix can be fully described in terms of the Stokes parameters related to the two possibles paths of the photon, together with a quantum version of the two-point Stokes parameters introduced here. Our findings put forward photonic circuits for the investigation of the dynamics of open quantum systems. Comment: 6 pages, 2 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2308.12813 |
| رقم الأكسشن: | edsarx.2308.12813 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |