Magnetic-Field-Compatible Superconducting Transmon Qubit
A. Kringhøj, T. W. Larsen, O. Erlandsson, W. Uilhoorn, J.G. Kroll, M. Hesselberg, R.P.G. McNeil, P. Krogstrup, L. Casparis, C.M. Marcus, K.D. Petersson
Abstract
Hybrid semiconductor-superconductor systems are an appealing platform for both fundamental studies in condensed matter physics and quantum technologies. The authors demonstrate coherent operation of a hybrid superconducting qubit in magnetic fields as strong as 1 T, with the rich qubit spectrum revealing the underlying Josephson physics of these systems. The results open several avenues for research on $e.g.$ robust Majorana transmon qubits, the probing of Andreev physics, and the coupling of superconducting qubits to spin qubits or spin ensembles.
Topics & Concepts
TransmonQubitPhysicsSuperconducting quantum computingSuperconductivityMAJORANAPhase qubitQuantum mechanicsFlux qubitCoupling (piping)Josephson effectSpin (aerodynamics)Condensed matter physicsQuantum computerCharge qubitQuantumPhysicistTopology (electrical circuits)Quantum and electron transport phenomenaTopological Materials and PhenomenaPhysics of Superconductivity and Magnetism