التفاصيل البيبلوغرافية
| العنوان: |
QUANTUM SENSING WITH SQUEEZED LIGHT |
| المؤلفون: |
Li, Fu |
| المساهمون: |
Scully, Marlan O., Agarwal, Girish S., Zubairy, M. Suhail, Sokolov, Alexei V. |
| سنة النشر: |
2022 |
| المجموعة: |
Texas A&M University Digital Repository |
| مصطلحات موضوعية: |
squeezed light, quantum sensing, quantum correlation, decoherence, two-photon absorption, shot-noise limit, sub-Rayleigh imaging |
| الوصف: |
In this dissertation, a twin-beam squeezed state combined with various experiments and computational techniques were applied to investigate quantum systems including quantum sensing and quantum coherence. These quantum ideas can provide us with methodologies to achieve un-precedented sensitivity and resolution for sensing and imaging, which is far beyond the classical measurement could achieve. These new methods based on quantum physics are revolutionizing the scales at which one can do sensing, imaging and microscopy with applications in diverse fields from physics and engineering to chemical, biology and medicine. The quantum sensing has clear bearing on many future technologies. In our lab, the quantum light source is a twin-beam squeezed state, which is generated via four- wave mixing nonlinear processes in a 85Rb vapor cell. Our goal is to develop novel quantum sensing techniques by engineering quantum light sources and by improving the quantumness of these sources, so that they can be utilized in proof of principle applications as well as other related applications, such as the weak absorption measurement, decoherence investigation, and two-photon microscopy. To investigate the quantum system, we first measured the quantumness of the twin-beam squeezed state, which has 6.5dB squeezed noise below the shot-noise limit. We demonstrated that an electron-multiplying charge-coupled-device EMCCD camera can capture the temporal images which provides the dynamic information. Thus, EMCCD camera can be used to measure the temporal quantum noise of twin beams squeezed light, and we observed ∼ 25% of temporal quantum noise reduction with respect to the shot-noise limit, which was given by coherent state. To the best of our knowledge, this is the first experimental showcase that an EMCCD camera can be used to acquire quantum properties of light in the temporal domain. One of the most serious challenges to the implementation of quantum technology, such as quantum communication and quantum methodology, is decohenrence, ... |
| نوع الوثيقة: |
thesis |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
https://hdl.handle.net/1969.1/195817Test |
| الإتاحة: |
https://hdl.handle.net/1969.1/195817Test |
| رقم الانضمام: |
edsbas.50FFC31C |
| قاعدة البيانات: |
BASE |
