Adiabatic quantum simulations with driven superconducting qubits

Marco Roth, Nikolaj Moll, Gian Salis, Marc Ganzhorn, Daniel J. Egger, Stefan Filipp, and Sebastian Schmidt
Phys. Rev. A 99, 022323 – Published 21 February 2019

Abstract

We propose a quantum simulator based on driven superconducting qubits where the interactions are generated parametrically by a bichromatic magnetic flux modulation of a tunable bus element. Using a time-dependent Schrieffer-Wolff transformation, we analytically derive a multiqubit Hamiltonian which features independently tunable XX- and YY-type interactions as well as local bias fields over a large parameter range. We demonstrate the adiabatic simulation of the ground state of a hydrogen molecule using two superconducting qubits and one tunable bus element. The time required to reach chemical accuracy lies in the few microsecond range. Therefore, the proposed adiabatic protocol could be implemented using currently available superconducting circuits. Further applications of this technique may also be found in the simulation of interacting spin systems.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 21 August 2018

DOI:https://doi.org/10.1103/PhysRevA.99.022323

©2019 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Marco Roth1,2, Nikolaj Moll3, Gian Salis3, Marc Ganzhorn3, Daniel J. Egger3, Stefan Filipp3, and Sebastian Schmidt4,5

  • 1JARA Institute for Quantum Information (PGI-11), Forschungszentrum Jülich, 52428 Jülich, Germany
  • 2Institute for Quantum Information, RWTH Aachen University, 52056 Aachen, Germany
  • 3IBM Research—Zürich, 8803 Rüschlikon, Switzerland
  • 4Institute for Theoretical Physics, ETH Zürich, 8093 Zürich, Switzerland
  • 5Pfenning, Meinig & Partner mbB, 01067 Dresden, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 99, Iss. 2 — February 2019

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×