US 11,728,797 B2
Multi-resonant coupling architectures for ZZ interaction reduction
David C. Mckay, Ossining, NY (US); Abhinav Kandala, Yorktown Heights, NY (US); and Srikanth Srinivasan, Mount Kisco, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Apr. 27, 2022, as Appl. No. 17/660,916.
Application 17/660,916 is a continuation of application No. 17/135,295, filed on Dec. 28, 2020, granted, now 11,329,638.
Application 17/135,295 is a continuation of application No. 16/896,740, filed on Jun. 9, 2020, granted, now 10,924,095, issued on Feb. 16, 2021.
Prior Publication US 2022/0255540 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03K 17/92 (2006.01); H03K 5/1252 (2006.01)
CPC H03K 5/1252 (2013.01) [H03K 17/92 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device, comprising:
a first qubit;
a second qubit; and
a multi-resonant architecture comprising a first resonator that couples the first qubit to the second qubit and a second resonator that couples the first qubit to the second qubit, wherein the first qubit is coupled to a first end of the first resonator and the second qubit is coupled to a second end of the first resonator, wherein the first qubit has a first operational frequency, wherein the second qubit has a second operational frequency, and wherein the first resonator has a first resonant frequency that is less than the first operational frequency and the second operational frequency.