Practical quantum advantage in quantum simulation

AJ Daley, I Bloch, C Kokail, S Flannigan, N Pearson… - Nature, 2022 - nature.com
The development of quantum computing across several technologies and platforms has
reached the point of having an advantage over classical computers for an artificial problem …

The randomized measurement toolbox

A Elben, ST Flammia, HY Huang, R Kueng… - Nature Reviews …, 2023 - nature.com
Programmable quantum simulators and quantum computers are opening unprecedented
opportunities for exploring and exploiting the properties of highly entangled complex …

Quantum variational algorithms are swamped with traps

ER Anschuetz, BT Kiani - Nature Communications, 2022 - nature.com
One of the most important properties of classical neural networks is how surprisingly
trainable they are, though their training algorithms typically rely on optimizing complicated …

Learning quantum systems

V Gebhart, R Santagati, AA Gentile, EM Gauger… - Nature Reviews …, 2023 - nature.com
The future development of quantum technologies relies on creating and manipulating
quantum systems of increasing complexity, with key applications in computation, simulation …

A survey on the complexity of learning quantum states

A Anshu, S Arunachalam - Nature Reviews Physics, 2024 - nature.com
Quantum learning theory is a new and very active area of research at the intersection of
quantum computing and machine learning. Important breakthroughs in the past two years …

Learning many-body Hamiltonians with Heisenberg-limited scaling

HY Huang, Y Tong, D Fang, Y Su - Physical Review Letters, 2023 - APS
Learning a many-body Hamiltonian from its dynamics is a fundamental problem in physics.
In this Letter, we propose the first algorithm to achieve the Heisenberg limit for learning an …

Sample-efficient learning of interacting quantum systems

A Anshu, S Arunachalam, T Kuwahara… - Nature Physics, 2021 - nature.com
Learning the Hamiltonian that describes interactions in a quantum system is an important
task in both condensed-matter physics and the verification of quantum technologies. Its …

Practical Hamiltonian learning with unitary dynamics and Gibbs states

A Gu, L Cincio, PJ Coles - Nature Communications, 2024 - nature.com
We study the problem of learning the parameters for the Hamiltonian of a quantum many-
body system, given limited access to the system. In this work, we build upon recent …

Quantum computation of dynamical quantum phase transitions and entanglement tomography in a lattice gauge theory

N Mueller, JA Carolan, A Connelly, Z Davoudi… - PRX Quantum, 2023 - APS
Strongly coupled gauge theories far from equilibrium may exhibit unique features that could
illuminate the physics of the early universe and of hadron and ion colliders. Studying real …

Entanglement Hamiltonian tomography in quantum simulation

C Kokail, R van Bijnen, A Elben, B Vermersch, P Zoller - Nature Physics, 2021 - nature.com
Entanglement is the crucial ingredient of quantum many-body physics, and characterizing
and quantifying entanglement in the closed-system dynamics of quantum simulators …