Magnetic flux suppresses doublet and triplet phases while stabilizing singlet states in interacting double quantum dot Josephson junctions, producing flux-controlled current-phase relations and triple points in parameter space.
And by letting ϕB =π, this co-tunneling process interfere destructively and only Cooper pair tunneling process maintains which made the ground state keep singlet
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Magnetic flux controlled current phase relationship in double Quantum Dot Josephson junction
Magnetic flux suppresses doublet and triplet phases while stabilizing singlet states in interacting double quantum dot Josephson junctions, producing flux-controlled current-phase relations and triple points in parameter space.