Dong-Ping Xuan

Unitary-accessible coherence-erasure distance: Exact qubit solution and a tight qutrit bound

We introduce the unitary-accessible coherence-erasure distance, which measures the minimum unitary-control cost required to transform a quantum state into an incoherent state without changing its spectrum. The target states are restricted to incoherent states on the same unitary orbit, leading to a geometry different f...