Qubit-resonator gates for co-design quantum computing.

Bulletin of the American Physical Society

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2024 APS March Meeting

Monday–Friday, March 4–8, 2024; Minneapolis & Virtual

Session D49: Superconducting QPUs & Commissioning

3:00 PM–5:48 PM, Monday, March 4, 2024
Room: 200G

Sponsoring Unit: DQI
Chair: Alysson Gold, Rigetti Quantum Computing

Abstract: D49.00009 : Qubit-resonator gates for co-design quantum computing.

5:00 PM–5:12 PM

Abstract

Presenter:

Jeroen Verjauw
(IQM quantum computers)

Authors:

Jeroen Verjauw
(IQM quantum computers)

Hsiang-Sheng Ku
(IQM Quantum Computers)

Daria Gusenkova
(IQM quantum computers)

Nicola Wurz
(IQM quantum computers)

Julia Lamprich
(IQM quantum computers)

Rakshyakar Giri
(IQM quantum computers)

Stefan Pogorzalek
(IQM quantum computers)

Florian Vigneau
(IQM quantum computers)

Ping Yang
(IQM quantum computers)

William Kindel
(IQM quantum computers)

Sourav Majumder
(IQM quantum computers)

Michael Renger
(IQM quantum computers)

Nizar Lethif
(IQM quantum computers)

Antti Vepsäläinen
(IQM Quantum computers)

Alessandro Landra
(IQM Finland Oy)

Vladimir Milchakov
(IQM quantum computers)

Caspar Ockeloen-Korppi
(IQM quantum computers)

Wei Liu
(IQM Finland Oy)

Pedro Figueroa Romero
(IQM Quantum Computers)

Hermanni Heimonen
(IQM Finland Oy)

Frank Deppe
(IQM quantum computers)

Manish Thapa
(IQM quantum computers)

Inés de Vega
(IQM Germany)

The co-design strategy, where hardware and application-specific algorithms are developed together, is a prime candidate to accelerate reaching quantum advantage and improving connectivity for hardware-efficient problem implementation. At IQM, the co-design architecture is a star-type superconducting quantum circuit using a distributed-element resonator as the central component, coupling to multiple satellite transmon qubits via tunable couplers. This configuration enables high connectivity and allows for the efficient simulation of problems requiring many all-to-all interactions, such as highly connected spin systems [1]. To effectively simulate problems, two topology-specific qubit-resonator operations with fidelities beyond 99% have been developed: a MOVE operation for excitation transport and a CZ-gate for algorithm execution. In this talk, we discuss the experimental progress on the considered gates and report on different metrics which benchmark our results.

[1] Manuel G. Algaba & Mario Ponce-Martinez, et. al., Phys. Rev. Research 4, 043089 (2022).

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Bulletin of the American Physical Society

2024 APS March Meeting

Monday–Friday, March 4–8, 2024; Minneapolis & Virtual

Session D49: Superconducting QPUs & Commissioning

Abstract: D49.00009 : Qubit-resonator gates for co-design quantum computing.

Presenter:

Authors:

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