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DTSTART;TZID=US/Eastern:20200910T155500
DTEND;TZID=US/Eastern:20200910T165500
SUMMARY:Quantum computing over the rainbow: the quantum optical frequency comb as a platform for measurement-based universal quantum computing -- Prof. Olivier Pfister
DESCRIPTION:Departmental Colloquium. An ultrafast laser emits vastly multimode light over a broad spectral band, a.k.a. the optical frequency comb (OFC), but the emission happens but one photon at a time, if in a stimulated manner, and no entanglement is created in the light. Changing the gain medium from linear (one- photon) to nonlinear (two-photon) yields an optical parametric oscillator which features massively multipartite entanglement of the OFC modes, as demonstrated experimentally by our group and others. This entanglement can then be exquisitely tailored to cluster states with specific graphs, in particular the two-dimensional ones that are universal for measurement-based, one-way quantum computing. It is worth noting that this requires only sparse experimental resources that are highly compatible with integrated optics, thereby paving the way to the realization of practical, fault- tolerant quantum computers.




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LOCATION:Zoom Meeting
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