Quantum control theory for state transformations: Dark states and their enlightenment
Quantum control theory for state transformations: Dark states and their enlightenment
For many quantum information protocols such as state transfer, entanglement transfer, and entanglement generation, standard notions of controllability for quantum systems are too strong. We introduce the weaker notion of accessible pairs and prove an upper bound on the achievable fidelity of a transformation between a pair of states based …