Quantum circuits—built from local unitary gates and local measurements—are a new
playground for quantum many-body physics and a tractable setting to explore universal …

Programmable quantum simulators and quantum computers are opening unprecedented
opportunities for exploring and exploiting the properties of highly entangled complex …

Quantum random sampling is the leading proposal for demonstrating a computational
advantage of quantum computers over classical computers. Recently the first large-scale …

Today's experimental noisy quantum processors can compete with and surpass all known
algorithms on state-of-the-art supercomputers for the computational benchmark task of …

Undesired coupling to the surrounding environment destroys long-range correlations on
quantum processors and hinders the coherent evolution in the nominally available …

The performance of quantum gates is often assessed using some form of randomized
benchmarking. However, the existing methods become infeasible for more than …

Randomized benchmarking refers to a collection of protocols that in the past decade have
become central methods for characterizing quantum gates. These protocols aim at efficiently …

Demonstrating quantum advantage requires experimental implementation of a
computational task that is hard to achieve using state-of-the-art classical systems. One …

The concept of space evolution (or space-time duality) has emerged as a promising
approach for studying quantum dynamics. The basic idea involves exchanging the roles of …

In this work, drawing inspiration from the type of noise present in real hardware, we study the
output distribution of random quantum circuits under practical nonunital noise sources with …