Two-dimensional arrays of solid-state quantum memories
Long-distance quantum communication relies on quantum repeaters to overcome the limitations of signal loss and decoherence. In quantum networks with repeater architecture, the distance nodes are entangled through entanglement swapping which is heralded using a classical signal. However, the entangle...
| Autor: | |
|---|---|
| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/424042 |
| Acceso en línea: | https://hdl.handle.net/2117/424042 |
| Access Level: | acceso abierto |
| Palabra clave: | Quantum communication Quantum memory quantum repeater quantum communication two-dimensional array acousto-optic deflector efficiency rise time delay time Comunicació quàntica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| Sumario: | Long-distance quantum communication relies on quantum repeaters to overcome the limitations of signal loss and decoherence. In quantum networks with repeater architecture, the distance nodes are entangled through entanglement swapping which is heralded using a classical signal. However, the entanglement rate is constrained by the travel time of heralding signals used in these repeaters. This thesis investigates the use of spatial multiplexing to address this limitation by dividing a solid-state crystal into 100 independent quantum memory cells. This multiplexing approach aims to enhance the entanglement rate by a factor of 100 and sets a new benchmark for solid-state systems. Building on previous work with one-dimensional solid-state AFC quantum memory \cite{Teller2024InPrep.}, this research involves designing and implementing an optical experimental setup to achieve 100 spatial modes, characterizing the two-dimensional array without the quantum memory. With the results of the characterization, the future performance of a quantum memory with the presented optical system is simulated. |
|---|