A quantum system for hosting logical qubits protected by an error correcting code comprises: * a command circuit (4) for selectively applying radiation, * a superconducting quantum circuit (6) comprising - a plurality of data resonators (8), each data resonator (8) being coupled to said command circuit (4) for stabilizing a respective data cat qubit, - a plurality of ancilla resonators (10), each ancilla resonator being coupled to said command circuit (4) for stabilizing a respective ancilla qubit, - the data resonators (8) and the ancilla resonators (10) are arranged on said superconducting quantum circuit into lines (12) comprising alternating data resonators and ancilla resonators, - the lines not crossing one another and defining a first end line and a second end line, - each data resonator and each ancilla resonator (10) of a line being connected to its immediate neighbors within its line, and - for all but the second end line, the ancilla resonators are connected to a data resonator of an adjacent line in the direction going from the first end line to the second end line, such that all ancilla resonators are connected to at least two and at most to three data resonators, the command circuit (4) being further arranged to operate a quantum gate between two data cat qubits connected by an ancilla qubit only using operations involving two or three resonators chosen among the group comprising said the data resonators hosting the data qubits and the ancilla resonator, with the data resonators being always involved.
- 출원번호 : EP2025/071554
- 출원인 : ALICE &BOB;
- 특허번호 :
- IPC : G06N-010/40(2022.01);G06N-010/70(2022.01);