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Conferences > QIM > 2019 > S3D > S3D.4

Quantum-limited time-frequency estimation through mode-resolved measurements

Vahid Ansari, John M. Donohue, Jaroslav Řeháček, Zdeněk Hradil, Bohumil Stoklasa, Martin Paúr, Luis L. Sánchez-Soto, and Christine Silberhorn

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Abstract

We employ time-frequency projective measurements to estimate arbitrarily small separations between objects with quantum-limited precision. We experimentally resolve temporal and spectral separations between incoherent mixtures of single-photon level signals ten times smaller than their bandwidths.

© 2019 The Author(s)

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