Thesis
Quantum illumination for practical jamming-resilient LIDAR
- Creator
- Rights statement
- Awarding institution
- University of Strathclyde
- Date of award
- 2024
- Thesis identifier
- T17050
- Person Identifier (Local)
- 201958887
- Qualification Level
- Qualification Name
- Department, School or Faculty
- Abstract
- Quantum-enhanced sensing technologies aim to use novel effects stemming from quantum physicsto benefit sensing applications. Such technologies can allow for sensing in regimes for whichconventional devices cannot, or they can demonstrate improved performance compared to theseconventional devices. We present a quantum-enhanced LIDAR protocol that is practical forreal-life use and has an operator-friendly approach to detector data processing and inferenceof target object presence or absence. The overarching objective of this thesis is to describesuch a protocol. Our protocol is based on a quantum illumination system with click detectors(Geiger-mode single-photon avalanche photo-diodes), which uses time-correlated coincidenceclick-counting. We developed a theoretical framework that processes detector data into a metricintrinsically linked to the likelihood of the absence or presence of a target. This approachallows for complicated multi-channel detector data to condense into an intuitive single value.Furthermore, the theoretical framework also has a level of self-calibration inbuilt. We alsocharacterise the functionality of our protocol in operator-friendly terms such as time-requiredfor confident detection. Our results reinforce the advantage of quantum states, when comparedto classical light in certain environmental and technological conditions, particularly when wedesire covertness. These advantages persist even when operating at room temperature withoff-the-shelf components, a crucial requirement for the practical roll-out of quantum-enhancedtechnologies. Additionally, we have demonstrated robustness to jamming, for both fast and slowdynamic jamming. Lastly, the theory provides the formalism to include any of the other non-classical correlations of our source; this feature improves the jamming-resilience of the protocoldue to noise exclusion and a relative increase of heralding gain. Due to its user-operabilityand experimental-demonstration with off-the-shelf components, our protocol could hasten theadoption of quantum-enhanced sensing technology.
- Advisor / supervisor
- Pritchard, Jonathan D.
- Jeffers, John (Physicist)
- Resource Type
- DOI
Relations
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PDF of thesis T17050 | 2024-10-02 | Public | Download |