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§ Other Qubits
Recently, our group suggested using ‘macroscopic quantum states of Josephson vortices’ as a flux qubit for quantum computation ( about 2000 ).
Our original idea was to use two distinct states of a fluxon trapped in a magnetic field-controlled double well potential inside a narrow long junction to design a qubit.
The theory predicts that a fluxon in a double well potential behaves as a quantum coherent two-state system.
