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20242026
most citedEfficient detection of nonclassicality using moments of the Wigner function

7 citations · 8 across the 7 of their papers we have counts for

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quant-ph2026

Exact Catalysis Cannot Overcome the Gaussian-Steering Barrier for Remote Wigner Negativity

Sudip Chakrabarty

Gaussian steering sets a sharp threshold for creating Wigner negativity at a distance. A measurement by Bob can make Alice's part of a shared Gaussian state Wigner negative only if…

quant-ph2026

Measurement-induced remote activation of nonclassicality

Sudip Chakrabarty

Nonclassicality, defined through nonpositivity of quasiprobability distributions such as the Wigner and Kirkwood-Dirac distributions, underlies key quantum advantages. We show that…

quant-ph2026

Quantifying Margenau--Hill Nonclassicality

Sudip Chakrabarty

Quasiprobability distributions offer a useful way of describing nonclassical features of quantum systems through their departure from classical probability theory. In this work, we…

quant-ph2026

Operational certification of nonclassicality in arbitrary quantum states from few copies

Sudip Chakrabarty, Bivas Mallick, Ananda G. Maity +1

States with negative Wigner functions constitute a fundamental nonclassical resource underlying quantum advantage. However, their experimental certification typically relies on rec…

quant-ph2026

Detection of quantum imaginarity using moments and its interferometric realization

Sudip Chakrabarty, Saheli Mukherjee, Ananda G. Maity +1

Complex numbers, intrinsic to the formulation of quantum theory, play a pivotal role in enabling advantages across a broad range of quantum information-processing tasks. Despite th…