no code implementations • 25 Feb 2021 • Conor Delaney, Kaushik P. Seshadreesan, Ian MacCormack, Alexey Galda, Saikat Guha, Prineha Narang
Demonstrations of quantum advantage have largely focused on computational speedups and on quantum simulation of many-body physics, limited by fidelity and capability of current devices.
Quantum Physics Optics
1 code implementation • 9 Mar 2020 • Narayanan Rengaswamy, Kaushik P. Seshadreesan, Saikat Guha, Henry D. Pfister
For space-based laser communications, when the mean photon number per received optical pulse is much smaller than one, there is a large gap between communications capacity achievable with a receiver that performs individual pulse-by-pulse detection, and the quantum-optimal "joint-detection receiver" that acts collectively on long codeword-blocks of modulated pulses; an effect often termed "superadditive capacity".
Quantum Physics Information Theory Information Theory
