PIRSA:19120056 Conference Quantum Foundations

DOI10.48660/19120056

Conference/School: Indefinite Causal Structure

Chiribella, G. (2019). 10 years of the quantum SWITCH: state of the art and new perspectives. Perimeter Institute. https://pirsa.org/19120056

Chiribella, Giulio. 10 years of the quantum SWITCH: state of the art and new perspectives. Perimeter Institute, Dec. 09, 2019, https://pirsa.org/19120056 

@misc{ pirsa_PIRSA:19120056,
  doi = {10.48660/19120056},
  url = {https://pirsa.org/19120056},
  author = {Chiribella, Giulio},
  keywords = {Quantum Foundations, Quantum Gravity, Quantum Information},
  language = {en},
  title = {10 years of the quantum SWITCH: state of the art and new perspectives},
  publisher = {Perimeter Institute},
  year = {2019},
  month = {dec},
  note = {PIRSA:19120056 see, \url{https://pirsa.org}}
}

Abstract

The quantum SWITCH is the simplest example of indefinite causal structure. Technically, it is a higher-order transformation that takes two physical processes A and B in input and combines them in a coherent superposition of two alternative orders, AB and BA. In the past decade, the quantum SWITCH has been the object of active research, both theoretically and experimentally. In this talk, I will review the state of the art, and outline two new applications to quantum Shannon theory and quantum metrology.

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