Temporal-mode tomography of single photons
| Autor: | Vahid Ansari, Georg Harder, Linda Sansoni, Christine Silberhorn, Benjamin Brecht, Nicolas Treps, Jonathan Roslund, Markus Allgaier |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Photon business.industry Hilbert space 02 engineering and technology Quantum channel 021001 nanoscience & nanotechnology 01 natural sciences Pulse (physics) symbols.namesake Optics 0103 physical sciences symbols Coherent states Tomography Quantum information 010306 general physics 0210 nano-technology business Quantum |
| Zdroj: | Conference on Lasers and Electro-Optics. |
| DOI: | 10.1364/cleo_qels.2017.fth4e.4 |
| Popis: | Accessing a high dimensional Hilbert space spanned by temporal modes (TMs) of single-photons is an intriguing idea for quantum information protocols, though it is experimentally challenging. The quantum pulse gate (QPG), a group-velocity matched sum-frequency process, can perform arbitrary TM resolved measurement. We present a thorough characterisation of measurement operators of a QPG and we show that this device is capable of performing full state tomography with 99% fidelity. Moreover, we use this device for TM tomography of pure and mixed heralded single-photon states in 7-dimensional Hilbert space. |
| Databáze: | OpenAIRE |
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