Preprint
Aug 2026
Hybrid Qubit-Rotor Quantum Systems: Clifford Structure, Universal Control, and Applications
A $U(1)$ quantum rotor pairs a periodic angle with an integer-valued conjugate momentum, and occurs in molecular rotation, superconducting phase-charge circuits, and compact gauge fields. Coupling such a rotor coherently to qubits gives a hybrid register whose control structure is not inherited from either the oscillat...
Dengyao Luo, Arvinda Kushwaha, Mastawal Tirfe et al.
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