IQIM Postdoctoral and Graduate Student Seminar

Friday, April 24, 2026

12:00pm to 1:00pm

East Bridge 114

Emulating the Bose-Hubbard Model with Arrays of Superconducting Qubits

William Oliver, Director of the Center for Quantum Engineering, MIT,

Abstract: In this talk, we study the propagation, entanglement, and entropy of quantum information using 3x3 and 4x4 arrays of superconducting qubits that emulate the two-dimensional (2D) hard-core Bose-Hubbard model. The 2D arrays feature site-selective, simultaneous control and readout of all qubits. We highlight several recent experimental demonstrations using these arrays, including quantum random walks, Anderson and Wannier-Stark localization [1], the crossover from area-law to volume-law entanglement [2], the realization of synthetic electromagnetic fields throughout the array [3], and studies of flat-band physics in rhombic lattices [4].

[1] npj Quantum Information 8, 35 (2022) | arXiv:2107.05035 (2021)

[2] Nature 629, 561-566 (2024) | arXiv:2306.02571 (2023)

[3] Nature Physics 20, 1881-1887 (2024) | arXiv:2405.00873 (2024)

[4] Physical Review X 15, 021091 (2025) | arXiv:2410.07878 (2024)

Following the talk, lunch will be provided on the lawn outside East Bridge.

For more information, please contact Marcia Brown by phone at 626-395-4013 or by email at [email protected].

Event Series

IQIM Postdoctoral and Graduate Student Seminar Series

Event Sponsors

Institute for Quantum Information and Matter (IQIM) More Events from this Sponsor