Results 1 to 10 of about 25,843 (119)

Qubit-excitation-based adaptive variational quantum eigensolver

open access: yesCommunications Physics, 2021
Existing methods for molecular simulations with quantum computers use ansatz constructed as series of fermionic excitation evolution. Here, qubit excitation evolutions are employed instead, in combination with the ADAPT-VQE protocol, to construct short ...
Yordan S. Yordanov   +3 more
doaj   +1 more source

Artificial Intelligence without Digital Computers: Programming Matter at a Molecular Scale

open access: yesAdvanced Intelligent Systems, 2022
As the carriers and executors of algorithms, digital computers are limited by the density of semiconductors on chips, where the quantum uncertainty is significant at the nanometer scale.
Li Lin, Michael Keidar
doaj   +1 more source

Microcanonical and finite-temperature ab initio molecular dynamics simulations on quantum computers

open access: yesPhysical Review Research, 2021
Ab initio molecular dynamics (AIMD) is a powerful tool to predict properties of molecular and condensed matter systems. However, the quality of this procedure relies on the availability of rigorous electronic structure calculations.
Igor O. Sokolov   +5 more
doaj   +1 more source

The N-Dimension Computing Machine Postulate

open access: yesIEEE Access, 2020
This paper postulates a novel N-dimension computing machine that operates in an unconventional manner. This postulate aims at solving existing problems in higher dimensions, where one must re-think the scope of a given problem domain beyond the one ...
Peraphon Sophatsathit
doaj   +1 more source

Quantum simulation of bosons with the contracted quantum eigensolver

open access: yesNew Journal of Physics, 2023
Quantum computers are promising tools for simulating many-body quantum systems due to their potential scaling advantage over classical computers. While significant effort has been expended on many-fermion systems, here we simulate a model entangled many ...
Yuchen Wang   +2 more
doaj   +1 more source

Fault-tolerant quantum computation of molecular observables [PDF]

open access: yesQuantum, 2023
Over the past three decades significant reductions have been made to the cost of estimating ground-state energies of molecular Hamiltonians with quantum computers. However, comparatively little attention has been paid to estimating the expectation values
Mark Steudtner   +10 more
doaj   +1 more source

An implementation of a parallel global minimum search algorithm with an application to the ReaxFF molecular dynamic force field parameters optimization [PDF]

open access: yesКомпьютерные исследования и моделирование, 2015
Molecular dynamic methods that use ReaxFF force field allow one to obtain sufficiently good results in simulating large multicomponent chemically reactive systems.
K. S. Shefov, M. M. Stepanova
doaj   +1 more source

Molecular Computing and Bioinformatics

open access: yesMolecules, 2019
Molecular computing and bioinformatics are two important interdisciplinary sciences that study molecules and computers. Molecular computing is a branch of computing that uses DNA, biochemistry, and molecular biology hardware, instead of traditional ...
Xin Liang, Wen Zhu, Zhibin Lv, Quan Zou
doaj   +1 more source

Computing molecular excited states on a D-Wave quantum annealer

open access: yesScientific Reports, 2021
The possibility of using quantum computers for electronic structure calculations has opened up a promising avenue for computational chemistry. Towards this direction, numerous algorithmic advances have been made in the last five years.
Alexander Teplukhin   +8 more
doaj   +1 more source

Solving hadron structures using the basis light-front quantization approach on quantum computers

open access: yesPhysical Review Research, 2022
Quantum computing has demonstrated the potential to revolutionize our understanding of nuclear, atomic, and molecular structure by obtaining forefront solutions in nonrelativistic quantum many-body theory. In this work, we show that quantum computing can
Wenyang Qian   +4 more
doaj   +1 more source

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