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Entanglement, loss, and quantumness: When balanced beam splitters are best
Noah Lupu-Gladstein, Anaelle Hertz, Khabat Heshami +1
The paper proves that beam splitters with equal transmission and reflection (balanced) generate the maximum entanglement for states interfered with vacuum under common entanglement…
Complex-valued Wigner entropy of a quantum state
Nicolas J. Cerf, Anaelle Hertz, Zacharie Van Herstraeten
It is common knowledge that the Wigner function of a quantum state may admit negative values, so that it cannot be viewed as a genuine probability density. Here, we examine the dif…
Quantum Wasserstein distance for Gaussian states
Anaelle Hertz, Mohammad Ahmadpoor, Oleksandr Dzhenzherov +2
Optimal transport between classical probability distributions has been proven useful in areas such as machine learning and random combinatorial optimization. Quantum optimal transp…
Equalities and inequalities from entanglement, loss, and beam splitters
Anaelle Hertz, Noah Lupu-Gladstein, Khabat Heshami +1
Quantum optics bridges esoteric notions of entanglement and superposition with practical applications like metrology and communication. Throughout, there is an interplay between in…
Quadrature Coherence Scale of Linear Combinations of Gaussian Functions in Phase Space
Anaelle Hertz, Aaron Z. Goldberg, Khabat Heshami
The quadrature coherence scale (QCS) is a recently introduced measure that was shown to be an efficient witness of nonclassicality. It takes a simple form for pure and Gaussian sta…