Quantum chemistry in the age of quantum computing

Y Cao, J Romero, JP Olson, M Degroote… - Chemical …, 2019 - ACS Publications
Practical challenges in simulating quantum systems on classical computers have been
widely recognized in the quantum physics and quantum chemistry communities over the …

Equation-of-Motion Methods for the Calculation of Femtosecond Time-Resolved 4-Wave-Mixing and N-Wave-Mixing Signals

MF Gelin, L Chen, W Domcke - Chemical Reviews, 2022 - ACS Publications
Femtosecond nonlinear spectroscopy is the main tool for the time-resolved detection of
photophysical and photochemical processes. Since most systems of chemical interest are …

qubit-adapt-vqe: An adaptive algorithm for constructing hardware-efficient ansätze on a quantum processor

HL Tang, VO Shkolnikov, GS Barron, HR Grimsley… - PRX Quantum, 2021 - APS
Quantum simulation, one of the most promising applications of a quantum computer, is
currently being explored intensely using the variational quantum eigensolver. The feasibility …

Measurement and entanglement phase transitions in all-to-all quantum circuits, on quantum trees, and in Landau-Ginsburg theory

A Nahum, S Roy, B Skinner, J Ruhman - PRX Quantum, 2021 - APS
A quantum many-body system whose dynamics includes local measurements at a nonzero
rate can be in distinct dynamical phases, with differing entanglement properties. We …

Tensor networks for dimensionality reduction and large-scale optimization: Part 1 low-rank tensor decompositions

A Cichocki, N Lee, I Oseledets, AH Phan… - … and Trends® in …, 2016 - nowpublishers.com
Modern applications in engineering and data science are increasingly based on
multidimensional data of exceedingly high volume, variety, and structural richness …

Tensor ring decomposition

Q Zhao, G Zhou, S Xie, L Zhang, A Cichocki - arXiv preprint arXiv …, 2016 - arxiv.org
Tensor networks have in recent years emerged as the powerful tools for solving the large-
scale optimization problems. One of the most popular tensor network is tensor train (TT) …

Tensor product methods and entanglement optimization for ab initio quantum chemistry

S Szalay, M Pfeffer, V Murg, G Barcza… - … Journal of Quantum …, 2015 - Wiley Online Library
The treatment of high‐dimensional problems such as the Schrödinger equation can be
approached by concepts of tensor product approximation. We present general techniques …

[HTML][HTML] Matrix product operators, matrix product states, and ab initio density matrix renormalization group algorithms

GK Chan, A Keselman, N Nakatani, Z Li… - The Journal of chemical …, 2016 - pubs.aip.org
Current descriptions of the ab initio density matrix renormalization group (DMRG) algorithm
use two superficially different languages: an older language of the renormalization group …

Machine learning by unitary tensor network of hierarchical tree structure

D Liu, SJ Ran, P Wittek, C Peng, RB García… - New Journal of …, 2019 - iopscience.iop.org
The resemblance between the methods used in quantum-many body physics and in
machine learning has drawn considerable attention. In particular, tensor networks (TNs) and …

Measurement-induced phase transitions on dynamical quantum trees

X Feng, B Skinner, A Nahum - PRX Quantum, 2023 - APS
Monitored many-body systems fall broadly into two dynamical phases,“entangling” or
“disentangling,” separated by a transition as a function of the rate at which measurements …