Two-dimensional hard-core Bose–Hubbard model with superconducting qubits
Name
s41534-020-0269-1.pdf
Description
Published version
Size
1.74 MB
Format
Adobe PDF
Checksum (MD5)
d74d3c9dc07f1cd73c2a75a104558732
Author(s)
Yanay, Yariv
Braumüller, Jochen
Gustavsson, Simon
Oliver, William D
Tahan, Charles
Date Issued
2020
Journal
npj Quantum Information
Publisher
Springer Science and Business Media LLC
Version
Final published version
Abstract
© 2020, The Author(s). The pursuit of superconducting-based quantum computers has advanced the fabrication of and experimentation with custom lattices of qubits and resonators. Here, we describe a roadmap to use present experimental capabilities to simulate an interacting many-body system of bosons and measure quantities that are exponentially difficult to calculate numerically. We focus on the two-dimensional hard-core Bose–Hubbard model implemented as an array of floating transmon qubits. We describe a control scheme for such a lattice that can perform individual qubit readout and show how the scheme enables the preparation of a highly excited many-body state, in contrast with atomic implementations restricted to the ground state or thermal equilibrium. We discuss what observables could be accessed and how they could be used to better understand the properties of many-body systems, including the observation of the transition of eigenstate entanglement entropy scaling from area-law behavior to volume-law behavior.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Lincoln Laboratory
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/S41534-020-0269-1
