Tomographic reconstruction of time-bin-entangled qudits

作者：Nowierski Samantha J^*; Oza Neal N; Kumar Prem; Kanter Gregory S

来源：Physical Review A, 2016, 94(4): 042328.

DOI：10.1103/PhysRevA.94.042328

We describe an experimental implementation to generate and measure high-dimensional time-bin-entangled qudits. Two-photon time-bin entanglement is generated via spontaneous four-wave mixing in single-mode fiber. Unbalanced Mach-Zehnder interferometers transform selected time bins to polarization entanglement, allowing standard polarization-projectivemeasurements to be used for complete quantum state tomographic reconstruction. Here we generate maximally entangled qubits (d = 2), qutrits (d = 3), and ququarts (d = 4), as well as other phase-modulated nonmaximally entangled qubits and qutrits. We reconstruct and verify all generated states using maximum-likelihood estimation tomography.

• 出版日期2016-10-19
• 单位西北大学