Results 51 to 60 of about 637,276 (316)

Quantum-accelerated multilevel Monte Carlo methods for stochastic differential equations in mathematical finance [PDF]

open access: yesQuantum, 2020
Inspired by recent progress in quantum algorithms for ordinary and partial differential equations, we study quantum algorithms for stochastic differential equations (SDEs).
Dong An   +5 more
semanticscholar   +1 more source

Inclusion–exclusion principle for open quantum systems with bosonic bath

open access: yesNew Journal of Physics, 2021
We present two fast algorithms which apply inclusion–exclusion principle to sum over the bosonic diagrams in bare diagrammatic quantum Monte Carlo and inchworm Monte Carlo method, respectively.
Siyao Yang, Zhenning Cai, Jianfeng Lu
doaj   +1 more source

Sign-Problem-Free Fermionic Quantum Monte Carlo: Developments and Applications [PDF]

open access: yesAnnual Review of Condensed Matter Physics, 2018
Reliable simulations of correlated quantum systems, including high-temperature superconductors and frustrated magnets, are increasingly desired nowadays to further our understanding of essential features in such systems.
Zi-Xiang Li, H. Yao
semanticscholar   +1 more source

Coupled Electron Ion Monte Carlo Calculations of Atomic Hydrogen [PDF]

open access: yes, 2004
We present a new Monte Carlo method which couples Path Integral for finite temperature protons with Quantum Monte Carlo for ground state electrons, and we apply it to metallic hydrogen for pressures beyond molecular dissociation.
Ceperley, David M.   +2 more
core   +1 more source

The Coupled Electronic-Ionic Monte Carlo Simulation Method [PDF]

open access: yes, 2002
Quantum Monte Carlo (QMC) methods such as Variational Monte Carlo, Diffusion Monte Carlo or Path Integral Monte Carlo are the most accurate and general methods for computing total electronic energies.
B. L. Hammond Jr.   +35 more
core   +2 more sources

Resolvendo a equação de Schrödinger utilizando procedimentos numéricos fundamentais

open access: yesQuímica Nova, 2012
A combination of the variational principle, expectation value and Quantum Monte Carlo method is used to solve the Schrödinger equation for some simple systems.
Rogério Custodio   +2 more
doaj   +1 more source

Metropolis Methods for Quantum Monte Carlo Simulations [PDF]

open access: yes, 2003
Since its first description fifty years ago, the Metropolis Monte Carlo method has been used in a variety of different ways for the simulation of continuum quantum many-body systems.
Ceperley, D. M.
core   +3 more sources

Excited States with Selected Configuration Interaction-Quantum Monte Carlo: Chemically Accurate Excitation Energies and Geometries [PDF]

open access: yesJournal of Chemical Theory and Computation, 2019
We employ quantum Monte Carlo to obtain chemically accurate vertical and adiabatic excitation energies, and equilibrium excited-state structures for the small, yet challenging, formaldehyde and thioformaldehyde molecules.
M. Dash   +4 more
semanticscholar   +1 more source

Experimental Monte Carlo Quantum Process Certification

open access: yesPhysical Review Letters, 2012
Experimental implementations of quantum information processing have now reached a level of sophistication where quantum process tomography is impractical. The number of experimental settings as well as the computational cost of the data post-processing now translates to days of effort to characterize even experiments with as few as 8 qubits. Recently a
Steffen, L.   +4 more
openaire   +4 more sources

Quantum-Enhanced Reinforcement Learning for Finite-Episode Games with Discrete State Spaces

open access: yesFrontiers in Physics, 2018
Quantum annealing algorithms belong to the class of metaheuristic tools, applicable for solving binary optimization problems. Hardware implementations of quantum annealing, such as the quantum annealing machines produced by D-Wave Systems [1], have been ...
Florian Neukart   +3 more
doaj   +1 more source

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