IQUIST Seminar: Machiel Blok, University of Rochester
- When:
- Tuesday, January 30, 2024 11:00 am - 11:50 am
- Where:
- 190 Engineering Sciences Building, 1101 W. Springfield Ave., Urbana, IL 61801 and Virtual
- Speaker:
- Machiel Blok, Assistant Professor, University of Rochester
- Title:
- Beyond binary quantum information: Controlling the excited states of 'artificial atoms' in superconducting circuits
- Description:
-
Encoding quantum information in the higher energy levels of the transmon circuit provides a resource efficient way to control large Hilbert spaces and to execute quantum algorithms at reduced circuit complexity. Building on recent demonstrations of the first qu-trit quantum processor at UC Berkeley [1,2], here I will discuss ongoing work in our lab at the University of Rochester to explore the transmon spectrum. We demonstrate preparation and readout of Fock states of up to ten microwave photons. Furthermore, we illustrate how the strong Kerr non-linearity of the transmon allows us to implement non-Gaussian operations that are challenging to realize in a linear mode. In the long term, we anticipate this new approach to controlling higher-level quantum information to yield benefits for bosonic quantum error correction and qu-dit simulation.