Results 81 to 90 of about 17,102 (215)
Nonlinear dynamics of ferroelectrics with three-well local potential
Condensed Matter Physics, 2018 For Sn_2P_2S_6 ferroelectrics, the appearance of spontaneous polarization is related to stereoactivity of tin cations and valence fluctuations of phosphorous cations.
R. Yevych, M. Medulych, Yu. Vysochanskii
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Sextic anharmonic oscillators and orthogonal polynomials
, 2006 Under certain constraints on the parameters a, b and c, it is known that Schroedinger's equation -y"(x)+(ax^6+bx^4+cx^2)y(x) = E y(x), a > 0, with the sextic anharmonic oscillator potential is exactly solvable.
Ciftci, Hakan +2 more
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Present status of coupled-channels calculations for heavy-ion subbarrier fusion reactions
EPJ Web of Conferences, 2016 The coupled-channels method has been a standard tool in analyzing heavy-ion fusion reactions at energies around the Coulomb barrier. We investigate three simplifications usually adopted in the coupledchannels calculations.
Hagino K., Yao J.M.
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Journal of High Energy PhysicsOut-of-time-ordered-correlators (OTOCs) have been suggested as a means to diagnose chaotic behavior in quantum mechanical systems. Recently, it was found that OTOCs display exponential growth for the inverted quantum harmonic oscillator, mirroring the ...
Paul Romatschke
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AIP Advances, 2016 The numerical solutions of the time independent Schrödinger equation of different one-dimensional potentials forms are sometime achieved by the asymptotic iteration method.
N. Al Sdran, F. Maiz
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, 2005 The power series method has been adapted to compute the spectrum of the Schrodinger equation for central potential of the form $V(r)={d_{-2}\over r^2}+{d_{-1}\over r}+\sum_{i=0}^{\infty} d_{i}r^i$.
Anna Okopińska +12 more
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Numerical Solution of a Sixth-Order Anharmonic Oscillator for Triaxial Deformed Nuclei
MathematicsThe Davydov–Chaban Hamiltonian, which describes the quadrupole collective states of triaxial nuclei involving two polar coordinates and three Euler rotation angles, is numerically solved in a basis of Bessel functions of the first kind for a sixth-order ...
Petricǎ Buganu +2 more
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Growth and PhysioChemical Properties of Second-Order Nonlinear Optical L-Threonine Single Crystals
Advances in Materials Science and Engineering, 2009 The present aim of the paper is to grow and to study the various properties of L-threonine amino acid single crystal in various aspects. Crystal growth of L-threonine single crystals has been carried out with the help of crystallization kinetics.
G. Ramesh Kumar, S. Gokul Raj
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Condition for equivalence of q-deformed and anharmonic oscillators [PDF]
The equivalence between the q-deformed harmonic oscillator and a specific anharmonic oscillator model, by which some new insight into the problem of the physical meaning of the parameter q can be attained, are ...
Artoni, M., Birman, Joseph L., Zang, Jun
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Path Integral Computation of Phonon Anharmonicity
, 2003 The partition function of an oscillator disturbed by a set of electron particle paths has been computed by a path integral method which permits to evaluate at any temperature the relevant cumulant terms in the series expansion.
Feynman +19 more
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