Mostrando 3,621 - 3,640 Resultados de 4,830 Para Buscar '"quantum mechanics"', tiempo de consulta: 0.21s Limitar resultados
  1. 3621
    por Lan, Jian, Sheng, Weidong
    Publicado 2011
    “…Beyond the semiclassic framework of phenomenological models, a fully quantum mechanical solution for cotunneling of electrons through a one-dimensional quantum dot is obtained using a quantum transmitting boundary method without any fitting parameters. …”
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  2. 3622
    “…Quantum-mechanical fluctuations in strongly correlated electron systems cause unconventional phenomena such as non-Fermi liquid behavior, and arguably high temperature superconductivity. …”
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  3. 3623
    “…In this work Monte Carlo (MC) and quantum-mechanical (QM) methods were used to study excluded volume and electrostatic interactions respectively. …”
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  4. 3624
    “…Despite huge advances in the computational techniques available for simulating biomolecules at the quantum-mechanical, atomistic and coarse-grained levels, there is still a widespread perception amongst the experimental community that these calculations are highly specialist and are not generally applicable by researchers outside the theoretical community. …”
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  5. 3625
    “…We demonstrate, through quantum mechanical calculations, that an origin of this phenomenon is a prevalence of ionic over electronic disorder in stoichiometric materials. …”
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  6. 3626
    “…Extensive 1D and 2D NMR analyses in combination with quantum mechanical calculations of the electronic circular dichroism (ECD) spectra, optical rotation, and (13)C chemical shifts were used to establish the chemical structures of 1 and 2. …”
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  7. 3627
    “…The suggested strategy relies on directly exploiting collective electrostatic effects, which emerge naturally in an ensemble of polar molecules. By means of quantum‐mechanical modeling we show that in this way monolayer‐based quantum‐cascades and quantum‐well structures can be realized, which allow a precise control of the local electronic structure and the localization of electronic states. …”
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  8. 3628
    “…This is a new type of magneto-optical effect and is explained by spin-dependent charge oscillation between ferromagnetic granules due to quantum-mechanical tunneling.…”
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  9. 3629
    “…The molecular structure of capecitabine (a widely applied prodrug of 5-fluorouracil) was studied by multinuclear NMR measurements and DFT quantum mechanical calculations. One or two tautomeric forms in a solution were detected depending on the solvent used. …”
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  10. 3630
    “…Quantum cryptography is the art and science of exploiting quantum mechanical effects in order to perform cryptographic tasks. …”
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  11. 3631
    por Lee, Myoung-Jae, Jung, Young-Dae
    Publicado 2020
    “…The Wigner time-delay and the Wigner distribution are derived for the electron–atom polarization interaction including the effects of quantum-mechanical characteristic and plasma screening. …”
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  12. 3632
    por Senkov, O. N., Miracle, D. B.
    Publicado 2021
    “…Nearly four decades later Pettifor conducted a quantum mechanical analysis of bond hybridization in a series of intermetallics and derived a separate ductility criterion based on the difference between two single-crystal elastic constants, C(12)–C(44). …”
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  13. 3633
    “…The quantum mechanically calculable Q descriptor is shown to be a potent quantifier of chemical reactivity in complex molecules – it shows a strong correlation to experimentally derived field effects in non‐aromatic substrates and Hammett σ(m) and σ(p) parameters. …”
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  14. 3634
    por Chen, Pan-Pan, Wipf, Peter, Houk, K. N.
    Publicado 2022
    “…The 1,2-bis(diphenylphosphino)ethane (dppe) ligand yields azepanes with substituents syn to the cyclopropyl group. In this work, quantum mechanical DFT calculations pinpoint a reversal of regio- and diastereoselectivity, suggesting a concerted (double) C−C bond cleavage and rhodium carbenoid formation, driven by strain-release. …”
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  15. 3635
    “…As the size of the nanocrystals decreased, a considerable short-wave-length shift in the absorption of the vis-near infrared wavelength was observed. A quantum mechanism for the wavelength tunability was discussed.…”
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  16. 3636
    “…To this end, conformational and configurational sampling techniques, such as Molecular Dynamics, have to be coupled to accurate fully atomistic Quantum Mechanical/Molecular Mechanics (QM/MM) methodologies. …”
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  17. 3637
    “…It covers both the classical and quantum mechanical aspects of magnetism and novel experimental techniques. …”
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  18. 3638
    Publicado 2016
    “…Since the last decade the study of quantum mechanical phenomena in biological systems has become a vibrant field of research. …”
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  19. 3639
    por Baaquie, Belal Ehsan
    Publicado 2018
    “…A range of economic and financial topics are shown to have quantum mechanical formulations, including options, coupon bonds, nonlinear interest rates, risky bonds and the microeconomic action functional. …”
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  20. 3640
    por Krauss, L M, Starkman, G D
    Publicado 2004
    “…The physical limits to computation have been under active scrutiny over the past decade or two, as theoretical investigations of the possible impact of quantum mechanical processes on computing have begun to make contact with realizable experimental configurations. …”
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