Entangled Photons: Creation and Application
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Location
Gallaudet University - JSAC Multipurpose Room
Start Date
4-3-2024 10:00 AM
End Date
4-3-2024 10:30 AM
Description
Quantum entanglement has many applications, ranging from communication to metrology. However, the large-scale deployment of entanglement-based technologies requires both the efficient preparation and the effective utilization of photonic entanglement resources. I will discuss how our research group is pursuing single photons as a solution to the inefficiencies of current entanglement-generation methods. A plentiful supply of single photons has potential to enable the efficient assembly of entanglement resources. By combining multiplexing methods with high-purity single-photon sources, we have made great strides in realizing a high-efficiency single-photon source that will enable the large-scale operation of entanglement-generating quantum gates. Additionally, I will discuss our work in ultrasensitive metrology as an example of the effective use of entanglement. As metrological tools, conventional single-photon “classical” interference and quantum two-photon interference suffer from trade-offs between resolution and robustness against optical loss, noise, and dispersion. By instead utilizing pairs of highly non-degenerate frequency-entangled photons, we have combined the best of classical and quantum interference methods to demonstrate attosecond temporal resolution, enabling novel metrological studies on the nanometer scale.
Recommended Citation
Lualdi, Colin, "Entangled Photons: Creation and Application" (2024). Global Year of STEM Sign Language. 4.
https://ida.gallaudet.edu/global_STEM_signlanguage/STEM_signlanguagesummit/day_3/4
Entangled Photons: Creation and Application
Gallaudet University - JSAC Multipurpose Room
Quantum entanglement has many applications, ranging from communication to metrology. However, the large-scale deployment of entanglement-based technologies requires both the efficient preparation and the effective utilization of photonic entanglement resources. I will discuss how our research group is pursuing single photons as a solution to the inefficiencies of current entanglement-generation methods. A plentiful supply of single photons has potential to enable the efficient assembly of entanglement resources. By combining multiplexing methods with high-purity single-photon sources, we have made great strides in realizing a high-efficiency single-photon source that will enable the large-scale operation of entanglement-generating quantum gates. Additionally, I will discuss our work in ultrasensitive metrology as an example of the effective use of entanglement. As metrological tools, conventional single-photon “classical” interference and quantum two-photon interference suffer from trade-offs between resolution and robustness against optical loss, noise, and dispersion. By instead utilizing pairs of highly non-degenerate frequency-entangled photons, we have combined the best of classical and quantum interference methods to demonstrate attosecond temporal resolution, enabling novel metrological studies on the nanometer scale.
