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quant-ph2026
Uniform Hiding and Two Routes to Relative Accuracy in Gaussian Boson Sampling
Hongru Zhao
Gaussian boson sampling requires control of how closely finite optical matrices follow Gaussian reference laws. We prove an explicit total variation bound of order between…
quant-ph2026
Weak Typicality of von Neumann Entanglement Entropy in Gaussian Boson Sampling
Hongru Zhao
We study the von Neumann entanglement entropy generated by a Haar distributed passive interferometer acting on equally squeezed input modes with fixed nonzero squeezing strengt…
quant-ph2026
Exact Moments of Gaussian Gram Hafnians Reveal an Threshold for Weak Anticoncentration
Hongru Zhao
Anticoncentration is central to hardness arguments for approximate sampling. In the independent Gaussian surrogate for collision free Gaussian boson sampling, the moment ratio stud…