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 …

Keldysh field theory for driven open quantum systems

LM Sieberer, M Buchhold, S Diehl - Reports on Progress in …, 2016 - iopscience.iop.org
Recent experimental developments in diverse areas—ranging from cold atomic gases to
light-driven semiconductors to microcavity arrays—move systems into the focus which are …

Quantum trajectories and open many-body quantum systems

AJ Daley - Advances in Physics, 2014 - Taylor & Francis
The study of open quantum systems–microscopic systems exhibiting quantum coherence
that are coupled to their environment–has become increasingly important in the past years …

Quantum phases from competing short-and long-range interactions in an optical lattice

R Landig, L Hruby, N Dogra, M Landini, R Mottl… - Nature, 2016 - nature.com
Insights into complex phenomena in quantum matter can be gained from simulation
experiments with ultracold atoms, especially in cases where theoretical characterization is …

Optimizing variational quantum algorithms using pontryagin's minimum principle

ZC Yang, A Rahmani, A Shabani, H Neven, C Chamon - Physical Review X, 2017 - APS
We use Pontryagin's minimum principle to optimize variational quantum algorithms. We
show that for a fixed computation time, the optimal evolution has a bang-bang (square …

Entanglement growth in quench dynamics with variable range interactions

J Schachenmayer, BP Lanyon, CF Roos, AJ Daley - Physical Review X, 2013 - APS
Studying entanglement growth in quantum dynamics provides both insight into the
underlying microscopic processes and information about the complexity of the quantum …

Quantum spin dimers from chiral dissipation in cold-atom chains

T Ramos, H Pichler, AJ Daley, P Zoller - Physical review letters, 2014 - APS
We consider the nonequilibrium dynamics of a driven dissipative spin chain with chiral
coupling to a one-dimensional (1D) bosonic bath, and its atomic implementation with a two …

Positive tensor network approach for simulating open quantum many-body systems

AH Werner, D Jaschke, P Silvi, M Kliesch, T Calarco… - Physical review …, 2016 - APS
Open quantum many-body systems play an important role in quantum optics and condensed
matter physics, and capture phenomena like transport, the interplay between Hamiltonian …

Propagation of errors and quantitative quantum simulation with quantum advantage

S Flannigan, N Pearson, GH Low… - Quantum Science …, 2022 - iopscience.iop.org
The rapid development in hardware for quantum computing and simulation has led to much
interest in problems where these devices can exceed the capabilities of existing classical …

Tensor network annealing algorithm for two-dimensional thermal states

A Kshetrimayum, M Rizzi, J Eisert, R Orús - Physical Review Letters, 2019 - APS
Tensor network methods have become a powerful class of tools to capture strongly
correlated matter, but methods to capture the experimentally ubiquitous family of models at …