PIRSA:22110118 Scientific Series Quantum Information

DOI10.48660/22110118

Series: Perimeter Institute Quantum Discussions

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_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}}
}

Abstract

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.

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