All our former experience with application of quantum theory seems to say that what is
predicted by quantum formalism must occur in the laboratory. But the essence of quantum …

Parametrized quantum circuits serve as ansatze for solving variational problems and
provide a flexible paradigm for the programming of near-term quantum computers. Ideally …

Quantum error mitigation has been proposed as a means to combat unwanted and
unavoidable errors in near-term quantum computing without the heavy resource overheads …

Continuously monitoring the environment of a quantum many-body system reduces the
entropy of (purifies) the reduced density matrix of the system, conditional on the outcomes of …

The Haar measure plays a vital role in quantum information, but its study often requires a
deep understanding of representation theory, posing a challenge for beginners. This tutorial …

We analyze the dynamics of entanglement entropy in a generic quantum many-body open
system from the perspective of quantum information and error corrections. We introduce a …

Quantum randomness is an essential key to understanding the dynamics of complex many-
body systems and also a powerful tool for quantum engineering. However, exact realizations …

Random quantum circuits yield minimally structured models for chaotic quantum dynamics,
which are able to capture, for example, universal properties of entanglement growth. We …

We introduce and explore a one-dimensional “hybrid” quantum circuit model consisting of
both unitary gates and projective measurements. While the unitary gates are drawn from a …

In this paper we continue to explore “hybrid” quantum circuit models in one-dimension with
both unitary and measurement gates, focusing on the entanglement properties of wave …