Parity Detection of Propagating Microwave Fields

  title={Parity Detection of Propagating Microwave Fields},
  author={Jean-Claude Besse and Simone Gasparinetti and Michele C. Collodo and Theo Walter and Ants Remm and Jonas Krause and C. Eichler and Andreas Wallraff},
  journal={arXiv: Quantum Physics},
The parity of the number of elementary excitations present in a quantum system provides important insights into its physical properties. Parity measurements are used, for example, to tomographically reconstruct quantum states or to determine if a decay of an excitation has occurred, information which can be used for quantum error correction in computation or communication protocols. Here we demonstrate a versatile parity detector for propagating microwaves, which distinguishes between radiation… Expand

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