Quantum Computing News Quantum Supremacy

The missing Google Quantum Supremacy Article

September 22, 2019

If you want to get away from the hype and see the paper that was published and then pulled stating that Google has claimed Quantum Supremacy, then we have a link to this paper here, where you can look at the claims yourself.

Download the paper from Google AI team

Quantum supremacy using a programmable superconducting processor from Google AI Quantum and collaborators

The tantalizing promise of quantum computers is that certain computational tasks might be executed exponentially faster on a quantum processor than on a classical processor. A fundamental challenge is to build a high-fidelity processor capable of running quantum algorithms in an exponentially large computational space. Here, we report using a processor with programmable superconducting qubits to create quantum states on 53 qubits, occupying a state space 253 ∼ 1016.

Measurements from repeated experiments sample the corresponding probability distribution, which we verify using classical simulations. While our processor takes about 200 seconds to sample one instance of the quantum circuit 1 million times, a state-of-the-art supercomputer would require approximately 10,000 years to perform the equivalent task. This dramatic speedup relative to all known classical algorithms provides an experimental realization of quantum supremacy on a computational task and heralds the advent of a much-anticipated computing paradigm.

Abstract

Get the paper here

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