[HTML][HTML] The variational quantum eigensolver: a review of methods and best practices
The variational quantum eigensolver (or VQE), first developed by Peruzzo et al.(2014), has
received significant attention from the research community in recent years. It uses the …
received significant attention from the research community in recent years. It uses the …
Variational quantum algorithms
Applications such as simulating complicated quantum systems or solving large-scale linear
algebra problems are very challenging for classical computers, owing to the extremely high …
algebra problems are very challenging for classical computers, owing to the extremely high …
Perspective on the current state-of-the-art of quantum computing for drug discovery applications
Computational chemistry is an essential tool in the pharmaceutical industry. Quantum
computing is a fast evolving technology that promises to completely shift the computational …
computing is a fast evolving technology that promises to completely shift the computational …
Information-theoretic bounds on quantum advantage in machine learning
We study the performance of classical and quantum machine learning (ML) models in
predicting outcomes of physical experiments. The experiments depend on an input …
predicting outcomes of physical experiments. The experiments depend on an input …
[HTML][HTML] Quantum natural gradient
A quantum generalization of Natural Gradient Descent is presented as part of a general-
purpose optimization framework for variational quantum circuits. The optimization dynamics …
purpose optimization framework for variational quantum circuits. The optimization dynamics …
Exponential error suppression for near-term quantum devices
B Koczor - Physical Review X, 2021 - APS
Suppressing noise in physical systems is of fundamental importance. As quantum
computers mature, quantum error correcting codes (QECs) will be adopted in order to …
computers mature, quantum error correcting codes (QECs) will be adopted in order to …
Efficient estimation of pauli observables by derandomization
We consider the problem of jointly estimating expectation values of many Pauli observables,
a crucial subroutine in variational quantum algorithms. Starting with randomized …
a crucial subroutine in variational quantum algorithms. Starting with randomized …
Purification-based quantum error mitigation of pair-correlated electron simulations
An important measure of the development of quantum computing platforms has been the
simulation of increasingly complex physical systems. Before fault-tolerant quantum …
simulation of increasingly complex physical systems. Before fault-tolerant quantum …
Exponential separations between learning with and without quantum memory
We study the power of quantum memory for learning properties of quantum systems and
dynamics, which is of great importance in physics and chemistry. Many state-of-the-art …
dynamics, which is of great importance in physics and chemistry. Many state-of-the-art …
Fermionic partial tomography via classical shadows
We propose a tomographic protocol for estimating any k-body reduced density matrix (k-
RDM) of an n-mode fermionic state, a ubiquitous step in near-term quantum algorithms for …
RDM) of an n-mode fermionic state, a ubiquitous step in near-term quantum algorithms for …