Quantum-enhanced telescopy


Wang, Y. (2022). Quantum-enhanced telescopy. Perimeter Institute. https://pirsa.org/22110118


Wang, Yunkai. Quantum-enhanced telescopy. Perimeter Institute, Nov. 30, 2022, https://pirsa.org/22110118


          @misc{ pirsa_22110118,
            doi = {10.48660/22110118},
            url = {https://pirsa.org/22110118},
            author = {Wang, Yunkai},
            keywords = {Quantum Information},
            language = {en},
            title = {Quantum-enhanced telescopy},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {nov},
            note = {PIRSA:22110118 see, \url{https://pirsa.org}}

Yunkai Wang University of Illinois System


Optical astronomical imaging looks for better imaging quality in extreme cases of weak and subdiffraction limits. I focus on the quantum enhancement of astronomical interferometric imaging, including its fundamental limit and practical issues. For the fundamental aspects, I ignore any resource limit and noise and consider the ideal imaging problems. I show that the resolution limit can be enhanced with more carefully chosen measurement strategies and the general imaging quality can be enhanced by postprocessing the stellar photons with a quantum computer. For the practical aspects, I try to overcome the transmission loss suffered by interferometric imaging using quantum network, consider the possibility to implement a local scheme with better performance, and discuss the feasibility of decomposing thermal states into temporally localized pulses.