-------- Forwarded Message -------- Subject: [ee-faculty] [EE-Seminar] EE Seminar: Today! Oskar Painter (Caltech), "Engineering of Superconducting Circuits for Quantum Simulation" Date: Fri, 7 Apr 2023 08:00:00 -0400 From: Brenn, Jess <jbrenn@g.harvard.edu><mailto:jbrenn@g.harvard.edu> Reply-To: jbrenn@g.harvard.edu<mailto:jbrenn@g.harvard.edu> To: EECS ee-seminars <ee-seminars@eecs.harvard.edu><mailto:ee-seminars@eecs.harvard.edu> CC: SEAS ee-faculty <ee-faculty@seas.harvard.edu><mailto:ee-faculty@seas.harvard.edu>, SEAS EE-Gradstudents <ee-gradstudents@seas.harvard.edu><mailto:ee-gradstudents@seas.harvard.edu>, seas-ee-researchers <seas-ee-researchers@g.harvard.edu><mailto:seas-ee-researchers@g.harvard.edu> Harvard John A. Paulson School of Engineering and Applied Sciences ELECTRICAL ENGINEERING SEMINAR Friday, April 7 at 1pm | SEC 1.402 "Engineering of Superconducting Circuits for Quantum Simulation" Oskar Painter, Professor of Applied Physics and Physics, Caltech Abstract: While the majority of engineerable many-body systems, or quantum simulators, consist of particles on a lattice with local interactions, quantum systems featuring long-range interactions are particularly challenging to model and interesting to study due to the rapid spatio-temporal growth of quantum entanglement and correlations. In my talk I will present a scalable quantum simulator architecture based on a linear array of superconducting qubits locally connected to an extensible photonic-bandgap metamaterial. The metamaterial acts both as a quantum bus mediating qubit-qubit interactions, and as a readout channel for multiplexed qubit-state measurement. As an initial demonstration, we realize a 10-qubit simulator of the one-dimensional Bose-Hubbard model with in situ tunability of both the hopping range and the on-site interaction. I will present how we characterize the Hamiltonian of the system using a measurement-efficient protocol based on quantum many-body chaos, and use a similar technique to study the many-body quench dynamics of the system, revealing through global bit-string statistics the predicted crossover from integrability to ergodicity as the hopping range increases. I will also discuss how the metamaterial quantum bus architecture can be extended to two-dimensional lattice systems and used to generate a wide range of qubit interactions, expanding the accessible Hamiltonians for analog quantum simulation and increasing the flexibility in implementing quantum circuits for gate-based computations. Bio: Oskar Painter received his Bachelor of Applied Science degree in Electrical Engineering from the University of British Columbia in 1994, his Master of Science degree from the California Institute of Technology in 1995, and his Ph.D. in Electrical Engineering from the California Institute of Technology in 2001. He joined the faculty at the California Institute of Technology in 2002, where he is now the John G. Braun Professor of Applied Physics and Professor of Physics. Prof. Painter's current research interests are in studying the quantum properties of mechanical systems, the development of hybrid superconducting quantum circuits for quantum information processing applications and quantum computing. He is currently on-leave from Caltech, leading the Amazon Web Services quantum computing hardware team. Speaker's Research Interests: Prof. Painter's current research interests are in studying the quantum properties of mechanical systems, the development of hybrid superconducting quantum circuits for quantum information processing applications and quantum computing. -- Jessica Brenn | Administrative Coordinator for Academic Operations Applied Math, Computer Science, Electrical Engineering Harvard John A. Paulson School of Engineering and Applied Sciences 33 Oxford Street, MD 253 Cambridge, MA 02138 Phone: 617-496-7358 [Image removed by sender.] -- You received this message because you are subscribed to the Google Groups "EECS ee-seminars" group. To unsubscribe from this group and stop receiving emails from it, send an email to ee-seminars+unsubscribe@eecs.harvard.edu<mailto:ee-seminars+unsubscribe@eecs.harvard.edu>. To view this discussion on the web visit https://groups.google.com/a/eecs.harvard.edu/d/msgid/ee-seminars/CADkPNexcy…jRiZ3jgWNlITIpuoRlc&e=>. -- To unsubscribe from this group and stop receiving emails from it, send an email to ee-faculty+unsubscribe@seas.harvard.edu<mailto:ee-faculty+unsubscribe@seas.harvard.edu>.