Mostrando 3,801 - 3,820 Resultados de 4,830 Para Buscar '"quantum mechanics"', tiempo de consulta: 1.16s Limitar resultados
  1. 3801
    “…Molecular dynamics simulations and geometry optimizations carried out at the quantum level as well as by quantum mechanical/molecular mechanics methods predict that short, single-stranded DNA oligonucleotides adopt conformations very similar to those observed in crystallographic double-stranded B-DNA, with rise coordinates close to ≈3.3 Å. …”
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  2. 3802
    “…The results of the experiment suggest not only the fact that the neutrons and its spin are separated and take different paths in the interferometer, but also quantum-mechanical causality is implied, insomuch that the behavior of a quantum system is affected by the choice of the selection at a later point in time.…”
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  3. 3803
    “…Finally the perturbation equations correspond to a supersymmetric quantum mechanical system such that the polar sector can be described in terms of Schrödinger’s equations with four generalised hyperbolic Pösch-Teller potentials whose eigenfunctions are in correspondence with the multipoles.…”
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  4. 3804
    “…The theoretical description of the ion motion excited with Ramsey's method in a Penning trap and subsequently the calculation of the resonance line shapes for different excitation times, pulse structures, and detunings of the quadrupole field has been carried out in a quantum mechanical framework and is discussed in detail in the preceding article in this journal by M. …”
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  5. 3805
    “…As an illustration, we apply our technique to the process of chaotic tunneling in a quantum mechanical model with two degrees of freedom. Our analysis reveals rich dynamics of the system. …”
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  6. 3806
    por Giovannini, Massimo
    Publicado 2010
    “…Testable inequalities are derived in the limit of large angular scales and can be physically interpreted in the light of the tenets of Hanbury Brown-Twiss interferometry. The quantum mechanical results are compared and contrasted with different situations including the one where intensity correlations are the result of a classical stochastic process. …”
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  7. 3807
    por Fujimoto, Minoru
    Publicado 2010
    “…In the third part, the multi-electron system is discussed theoretically, as a quantum-mechanical example, for the superconducting state in metallic crystals. …”
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  8. 3808
    por Zudin, Yuri B
    Publicado 2012
    “…The second edition is extended by (i) the analysis of stability boundaries in helium flow at supercritical conditions in a heated channel with respect to the interaction between a solid body and a fluid; (ii) a periodic model and a method of heat transfer simulation in a fluid at supercritical pressure and (iii) a periodic quantum-mechanical model for homogeneous vapor nucleation in a fluid with respect to nanoscale effects.…”
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  9. 3809
    “…This book introduces the classical and quantum mechanical approaches used to describe and simulate complex plasmas. …”
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  10. 3810
    por Kröger, Bernd
    Publicado 2015
    “…Hermann Haken (born 1927) is one of the “fathers” of the quantum-mechanical laser theory, formulated between 1962 and 1966, in strong competition with American researchers. …”
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  11. 3811
    por Landi, Giovanni
    Publicado 1997
    “…They have been used to construct quantum-mechanical and field-theory models, alternative models to lattice gauge theory, with nontrivial topological content. …”
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  12. 3812
    “…The early studies included the optical coherence theory and the semiclassical and quantum mechanical theories of the laser. More recently many new and interesting effects have been predicted. …”
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  13. 3813
    por Janus, Piotr Andrzej
    Publicado 2016
    “…Light-by-light scattering ($\gamma\gamma\rightarrow\gamma\gamma$) is a quantum-mechanical process that is forbidden in the classical theory of electrodynamics. …”
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  14. 3814
    por Rother, Tom
    Publicado 2017
    “…A short outlook on quantum mechanical problems concludes this book.…”
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  15. 3815
    por Ogrodnik, Agnieszka
    Publicado 2018
    “…Light-by-light (LbyL) scattering is a quantum-mechanical process with a small cross-section, but possible to observe in ultra-peripheral high energy heavy-ion collisions. …”
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  16. 3816
    “…It also tackles quantum mechanical properties of hydrogen and related adsorbates such as the molecular orbital angular momentum (spin) and diffusion along the minimum potential energy landscape on metal surfaces. …”
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  17. 3817
    “…Although a fully quantum mechanical argument will be necessary to quantify the ultimate limit of this coherent detection scheme, the use of a state-of-the-art phase-locked gyrotron and superconducting quantum sensors would lead to further improvement of millimeter-wave dark photon and axion searches. …”
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  18. 3818
    por Tomaschitz, R
    Publicado 1992
    “…Geodesic motion in infinite spaces of constant negative curvature provides for the first time an example where a basically quantum mechanical quantity, a ground-state energy, is derived from Newtonian mechanics in a rigorous, non-semiclassical way. …”
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  19. 3819
    por Schrör, B
    Publicado 2002
    “…Particular attention is given to the change of localization structure in passing from the wedge to its horizon which results in the emergence of a transverse quantum mechanical substructure of the QFT on the horizon and its lightfront extension. …”
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  20. 3820
    “…Such an approach does not take into account the diffusion of head-tail modes of nonzeroth order, which is a consequence of the quantum-mechanical nature of synchrotron radiation. In this paper, we show that Laclare’s eigenvalue method is a change of basis from another popular method of solving the Sacherer formalism, where Fokker-Planck diffusion terms can be readily included. …”
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