US 11,742,831 B2
Coupler and calculating device
Hayato Goto, Kawasaki Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed on Sep. 12, 2022, as Appl. No. 17/931,515.
Application 17/931,515 is a division of application No. 17/681,610, filed on Feb. 25, 2022, granted, now 11,476,836.
Claims priority of application No. 2021-125184 (JP), filed on Jul. 30, 2021.
Prior Publication US 2023/0044874 A1, Feb. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H03H 11/02 (2006.01)
CPC H03H 11/02 (2013.01) [Y10S 505/865 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coupler, comprising:
a first capacitor including a first capacitor end portion and a first capacitor other-end portion;
a first inductor including
a first inductor end portion electrically connected with the first capacitor end portion, and
a first inductor other-end portion;
a second capacitor including a second capacitor end portion and a second capacitor other-end portion;
a second inductor including
a second inductor end portion electrically connected with the second capacitor end portion, and
a second inductor other-end portion electrically connected with the first capacitor other-end portion, the first inductor other-end portion, and the second capacitor other-end portion;
a first Josephson junction including
a first Josephson junction end portion electrically connected with the first capacitor end portion, and
a first Josephson junction other-end portion electrically connected with the second capacitor end portion,
a space being surrounded with the first inductor, the second inductor, and the first Josephson junction;
a third capacitor including
a third capacitor end portion electrically connectable with a first nonlinear resonator, and
a third capacitor other-end portion electrically connected with the first capacitor end portion; and
a fourth capacitor including
a fourth capacitor end portion electrically connectable with a second nonlinear resonator, and
a fourth capacitor other-end portion electrically connected with the second capacitor end portion.