Abstract
We have demonstrated strong antiferromagnetic coupling between two three-junction flux qubits based on a shared Josephson junction, and therefore not limited by the small inductances of the qubit loops. The coupling sign and magnitude were measured by coupling the system to a high-quality superconducting tank circuit. Design modifications allowing to continuously tune the coupling strength and/or make the coupling ferromagnetic are discussed.
Original language | Undefined |
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Pages (from-to) | 020503 |
Journal | Physical review B: Condensed matter and materials physics |
Volume | 72 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- IR-57376