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Seminar details

Name Quantum Information and Quantum Computing working group
Title Changing the circuit-depth complexity of measurement-based quantum computation with hypergraph states

While the circuit model of quantum computation defines its logical depth or “computational time” in terms of temporal gate sequences, the measurement-based model could allow totally different temporal ordering and parallelization of logical gates. By developing techniques to analyze Pauli measurements on multiqubit hypergraph states generated by the controlled-controlled-Z (ccz) gates, we introduce a deterministic scheme of universal measurement-based computation. In contrast to the cluster-state scheme where the Clifford gates are parallelizable, our scheme enjoys massive parallelization of ccz and swap gates, so that the computational depth grows with the number of global applications of Hadamard gates, or, in other words, with the number of changing computational bases. A logarithmic-depth implementation of an N-times controlled-Z gate illustrates a trade-off between space and time complexity.


Zoom meeting details

Topic: Quantum Information and Quantum Computing Working Group

Time: July 02, 2020, 04:00 PM Warsaw

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Meeting ID: 922 2710 3826
Password: bQ,"mfjpB!

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Time Thursday, 2 July 2020, at 16:00 CEST The seminar was held!

Dr Mariami Gachechiladze  (University of Cologne)

Seminar Language English
Organisers Michał Oszmaniec; Filip Maciejewski;