Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T75: Understanding and Mitigating Decoherence in Superconducting Qubits
11:30 AM–2:06 PM,
Thursday, March 9, 2023
Room: Room 401/402
Sponsoring
Unit:
DQI
Chair: Joao Basso, University of California, Berkeley
Abstract: T75.00009 : Noise-bias preserving gate with qubits encoded in an superconducting Ising chain
1:30 PM–1:42 PM
Author not Attending
Presenter:
Gabriel Ethier-Majcher
(Anyon Systems Inc)
Authors:
Gabriel Ethier-Majcher
(Anyon Systems Inc)
Clauderic Ouellet-Plamondon
(Anyon Systems Inc)
Marcelo Wu
(Anyon Systems inc.)
Alireza Najafi-Yazdi
(Anyon Systems Inc)
In this work, we show that a noise-bias preserving X gate can be performed on an Ising chainĀ implemented using superconducting qubits. The gate is realized by sequentially and adiabatically turning off and on the coupling between the individual qubits forming the chain. The operation can be faster than 50 ns for realistic system parameters, does not require any RF signal, and is robust to large deviations in control parameters, up to 50 %. Our theoretical results show that the Ising chain qubit is a promising architecture to protect quantum information encoded in a superconducting platform.
[1] Grimm et al., Nature 584 205 (2020)
[2] Aliferis et al., PRA 78, 052331 (2008)
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