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Hartmut Neven

Researcher at Google

Publications -  238
Citations -  29294

Hartmut Neven is an academic researcher from Google. The author has contributed to research in topics: Qubit & Quantum computer. The author has an hindex of 65, co-authored 221 publications receiving 21086 citations. Previous affiliations of Hartmut Neven include Max Planck Society & Ruhr University Bochum.

Papers
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Supplementary information for "Quantum supremacy using a programmable superconducting processor"

TL;DR: In this paper, an updated version of supplementary information to accompany "Quantum supremacy using a programmable superconducting processor", an article published in the October 24, 2019 issue of Nature, is presented.
Journal ArticleDOI

Quantum supremacy using a programmable superconducting processor

Frank Arute, +85 more
- 24 Oct 2019 - 
TL;DR: Quantum supremacy is demonstrated using a programmable superconducting processor known as Sycamore, taking approximately 200 seconds to sample one instance of a quantum circuit a million times, which would take a state-of-the-art supercomputer around ten thousand years to compute.
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Barren Plateaus in Quantum Neural Network Training Landscapes

TL;DR: In this article, the authors show that for a wide class of reasonable parameterized quantum circuits, the probability that the gradient along any reasonable direction is non-zero to some fixed precision is exponentially small as a function of the number of qubits.
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Characterizing Quantum Supremacy in Near-Term Devices

TL;DR: In this article, the authors study the task of sampling from the output distributions of (pseudo-)random quantum circuits, a natural task for benchmarking quantum computers, and show that this sampling task must take exponential time in a classical computer.