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Direct Josephson coupling between superconducting flux qubits

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 نشر من قبل Miroslav Grajcar
 تاريخ النشر 2005
  مجال البحث فيزياء
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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.



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