Magnetic Field Dependence of the Transition Frequencies of the Twin Qubit (IMAGE)
Caption
The energy of the ground state (a) and the transition energy hf01 of the twin qubit calculated from the Hamiltonian of Eq. (1) (b). The parameters α?=?0.72 and C?=?5.2 fF and the Josephson energy is E J ?=?50?GHz. These dependencies are Φ0 periodic and symmetric with respect to Φ/Φ0?=?0.5. The minimum point of the (b) plot corresponds to the transition of the central junction phase φ0 from zero to π.
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