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quantum chemistry

Adiabatic Quantum Simulation of Quantum Chemistry

Adiabatic Quantum Simulation of Quantum Chemistry

... atom quantum simulators, with the trapping mechanism taking the place of the crystal lattice and interactions restricted to neighbors on the ...However, quantum chemistry applied to molecular systems ...

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Quantum-Chemistry Based Studying of Rebar Passivation in Alkaline Concrete Environment

Quantum-Chemistry Based Studying of Rebar Passivation in Alkaline Concrete Environment

... computational quantum-chemistry method and the traditional molecular dynamics (MD) ...Computational quantum-chemistry methods, such as those based on the Density Functional Theory are limited ...

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Multi-level meta-workflows: new concept for regularly occurring tasks in quantum chemistry

Multi-level meta-workflows: new concept for regularly occurring tasks in quantum chemistry

... Computational Chemistry covers a broad range of scientific challenges and consequently a multitude of methods and algorithms have been developed over the past ...including Quantum Chemistry (QC), ...

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Qubitization of Arbitrary Basis Quantum Chemistry Leveraging Sparsity and Low Rank Factorization

Qubitization of Arbitrary Basis Quantum Chemistry Leveraging Sparsity and Low Rank Factorization

... The paper is organized as follows. In Section 2 we review how it is possible to truncate the Coulomb operator to low rank, and establish notation. In Section 3 we describe the Hamiltonian as a linear combination of ...

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Accelerating Correlated Quantum Chemistry Calculations Using Graphical Processing Units

Accelerating Correlated Quantum Chemistry Calculations Using Graphical Processing Units

... modern quantum theory a century ago, scientists quickly realized that quantum mechanics could offer a predictive theory of chemistry, revolution- izing the subject in the same way that Newton’s laws ...

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Cavity Ringdown Spectroscopy, Kinetics, and Quantum Chemistry of Atmospherically Relevant Reactions

Cavity Ringdown Spectroscopy, Kinetics, and Quantum Chemistry of Atmospherically Relevant Reactions

... I would like to single out a few of my co-workers. Andrew Mollner was my mentor for the first two years at Caltech and taught me everything that I needed to know to run a cavity ringdown lab. Andrew is one of the most ...

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Calculations Using Quantum Chemistry for Inorganic Molecule Simulation BeLi2SeSi

Calculations Using Quantum Chemistry for Inorganic Molecule Simulation BeLi2SeSi

... Analyzing Figures (1) and Figure (2) obtained by quantum chemistry by the ab initio method, we can see the structure of the simulated molecule. Making the necessary turns of visualization with the atom of ...

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Computational Algebraic Geometry and Quantum Mechanics: An Initiative toward Post-Contemporary Quantum Chemistry

Computational Algebraic Geometry and Quantum Mechanics: An Initiative toward Post-Contemporary Quantum Chemistry

... in quantum chemistry has been proposed recently (“An approach to first principles electronic structure calculation by symbolic- numeric computation” by ...

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Benchmarking Quantum Chemistry Methods in Calculations of Electronic Excitations

Benchmarking Quantum Chemistry Methods in Calculations of Electronic Excitations

... The equilibrium geometry parameters of this model system were computed using the quan- tum mechanics/molecular mechanics (QM/MM) approach. All QM/MM calculations were car- ried out using NWChem quantum ...

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Reactivity of defect free and vacancy containing hexagonal graphene nanoclusters according to quantum chemistry approach

Reactivity of defect free and vacancy containing hexagonal graphene nanoclusters according to quantum chemistry approach

... In principle, it is possible to avoid the shortcomings in several ways, including: the transition to a finite graphene-like system, i.e. the introduction of a certain type of frontiers; creating sets or polyatomic ...

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Control theory applied to quantum chemistry: some tracks

Control theory applied to quantum chemistry: some tracks

... This section is to be seen as a short user’s guide for an expert at control theory that would be curious of knowing more on the models of Quantum Chemistry. A more general and comprehensive introduction can ...

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Ab initio Quantum Chemistry Methods for Modeling Molecular Excited States Beyond Configuration Interaction Singles

Ab initio Quantum Chemistry Methods for Modeling Molecular Excited States Beyond Configuration Interaction Singles

... in quantum chemistry is creating new long-range corrected (LRC) TD-DFT functionals that add in exact Hartree-Fock exchange at long distances by partitioning the Coulomb operator [46, 47, 48, ...

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Molecular Dynamics Simulations of the DNA CNT Interaction Process: Hybrid Quantum Chemistry Potential and Classical Trajectory Approach

Molecular Dynamics Simulations of the DNA CNT Interaction Process: Hybrid Quantum Chemistry Potential and Classical Trajectory Approach

... and quantum-chemical MD modeling—the molecules are described as a set of spheres and springs, where the force fields and interaction between particles are based on a definite (but not unique) description method ...

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Accelerating Correlated Quantum Chemistry Calculations Using Graphical Processing Units and a Mixed Precision Matrix Multiplication Library

Accelerating Correlated Quantum Chemistry Calculations Using Graphical Processing Units and a Mixed Precision Matrix Multiplication Library

... To illustrate the utility of MGEMM for quantum chemistry, we have implemented it into the Q-Chem program package to accelerate RI-MP2 calculations. We have considered both the use of modern high-end GPU ...

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Crafting Detailed Kinetic Mechanisms for Gas- and Condensed-Phase Systems using Computational Quantum Chemistry.

Crafting Detailed Kinetic Mechanisms for Gas- and Condensed-Phase Systems using Computational Quantum Chemistry.

... of quantum chemical calculations. Computational quantum chemistry (CQC) uses solutions of the Schrödinger equation [24] to describe chemical events on the atomic ...of quantum mechanics during ...

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Quantum chemistry calculation aided design of chiral ionic liquid based extraction system for amlodipine separation

Quantum chemistry calculation aided design of chiral ionic liquid based extraction system for amlodipine separation

... Abstract: Amlodipine is a widely used medication in treating hypertension, which is also known as a chiral compound. So far efforts have been made to obtain optically pure (S)-amlodipine because (R)-amlodipine has poor ...

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Comparative Study of the Antioxidant Properties of Trolox, Ascorbic Acid and Butyl Hydroxytolene (BHT) by the Methods of Quantum Chemistry

Comparative Study of the Antioxidant Properties of Trolox, Ascorbic Acid and Butyl Hydroxytolene (BHT) by the Methods of Quantum Chemistry

... In 2006, by a kinetic study, identified the hydroxyl (OH) group of trolox as the site of its antioxidant properties. The complexity of the exercise of evaluating the antiradical strength of plant extracts was clearly ...

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Accelerating Resolution-of-the-Identity Second Order Møller-Plesset Quantum Chemistry Calculations with Graphical Processing Units

Accelerating Resolution-of-the-Identity Second Order Møller-Plesset Quantum Chemistry Calculations with Graphical Processing Units

... Despite decades of sustained progress in state-of-the-art of quantum chemistry methodology, speeding up calculations and thereby increasing the size of tractable molecules is an ongoing activity. The use of ...

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Applications of Posmom in Quantum Chemistry

Applications of Posmom in Quantum Chemistry

... The Hartree-Fock method is one of the simplest methods to solve the Schr¨ odinger equation, where the real electron-electron interaction is replaced by an average inter- action. With a sufficiently large basis set, the ...

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Calculating energy derivatives for quantum chemistry on a quantum computer

Calculating energy derivatives for quantum chemistry on a quantum computer

... domains. Quantum chemistry has been identi fi ed as a key area where quantum computers can stop being science and start doing ...improving quantum algorithms for simulating time evolution 6,7 ...

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