Seminarium Optyczne

Single photons play a pivotal role in quantum technologies such as metrology, computing, communications, networking, and quantum key distribution (QKD). They have become essential for transmitting quantum states over long distances, thanks to their weak interactions with matter, compatibility with fiber optics, and technical advances in optical telecommunications. Additionally, photons serve as a cornerstone in both theoretical and experimental research in precise measurements and quantum information processing.In this talk, we will explore the phases carried by single photons, beginning with spatial phases and extending to temporal and spectral phases. We will examine current techniques for dynamically modifying the spectral-temporal modes of single photons and investigate methods for measuring these states. Lastly, we will briefly discuss the role of machine learning in optimizing and shaping single-photon modes.