4 citations · 4 across the 3 of their papers we have counts for
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Optimal Probe State for Phase Estimation Under Covariant Measurement
Qipeng Qian, Christos N. Gagatsos
We study the optimization of input states for phase estimation under covariant measurements. Building on Holevo's framework, which provides the optimal covariant measurement for a…
Upper bounds on the purity of Wigner positive quantum states that verify the Wigner entropy conjecture
Qipeng Qian, Christos Gagatsos
We present analytical results toward the Wigner entropy conjecture, which posits that among all physical Wigner non-negative states the Wigner entropy is minimized by pure Gaussian…
Heralded enhancement in quantum state discrimination
Qipeng Qian, Christos N. Gagatsos
The discrimination of quantum states is a central problem in quantum information science and technology. Meanwhile, partial post-selection has emerged as a valuable tool for quantu…
Wigner non-negative states that verify the Wigner entropy conjecture
Qipeng Qian, Christos N. Gagatsos
We present further progress, in the form of analytical results, on the Wigner entropy conjecture set forth in https://link.aps.org/doi/10.1103/PhysRevA.104.042211 and https://iopsc…