Author

Ting Yu

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Preprint Sep 2026

Generation of arbitrary quantum states in cavity-atom systems with a three-level ancilla

We generalized the seminal work of Law&Eberly, and propose a protocol to generate arbitrary quantum states with a three-level atom as an ancilla in a more efficient manner. This protocol moves two excitations in parallel in each control step, thus reducing the number of evolution steps by half. Full analytical expressi...

Da-Wei Luo, Ting Yu · 0 citations

Preprint Sep 2026

Quantum Fisher Information as the Speed Limit for Multipartite Entanglement

We derive a universal upper bound on the speed of multipartite entanglement generation. For arbitrary differentiable pure multipartite states undergoing parameter-dependent evolution, we prove that the rate of change of generalized concurrence is bounded by the square root of the quantum Fisher information (QFI). The p...

Zain Saleem, Da-Wei Luo, Anjala M. Babu et al. · 0 citations