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Quantum Measurements on Trapped Ions (Prof. J. Home)

  • Datum: 04.07.2017
  • Uhrzeit: 14:30 - 15:30
  • Vortragender: Prof. Dr. Jonathan Home
  • ETH Zürich, Department of Physics, Institute for Quantum Electronics
  • Raum: Herbert Walther Lecture Hall
  • Gastgeber: MPQ
Measurement as defined in quantum physics rarely corresponds to what is performed in the laboratory.

I will describe multiple experiments in which we have investigated the character of sequential measurements performed on a quantum system realized using the internal and motional states of trapped ions. All of these use a binary measurement to extract information from a system with a Hilbert which is larger than a single qubit, resulting in quantum coherence which persists after the measurement. Correlations between measurement results allow the evaluation of tests of hidden-variable theories, while we are also able to demonstrate crucial elements in creating and measuring encoded qubits for quantum information processing.

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