194 results on '"Fernández, Francisco"'
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2. The Hellmann-Feynman theorem and the spectrum of some Hamiltonian operators
3. On the screened Kratzer potential and its variants
4. On the Raleigh-Ritz variational method. Non-orthogonal basis set
5. On the eigenvalues of the harmonic oscillator with a Gaussian perturbation
6. Quantum-centric Supercomputing for Materials Science: A Perspective on Challenges and Future Directions
7. On the spectrum of the screened Coulomb potential $V(r)=-r^{-1}e^{-C/r}$
8. Penning-trap eigenfrequency measurements with optical radiofrequency detectors
9. On the variational treatment of a class of double-well oscillators
10. On a recent calculation of the mass spectra of quarkonia using the Cornell potential with spin-spin interactions
11. On some one-dimensional quantum-mechanical models with a delta-potential interaction
12. On the effective secular equation
13. Algebraic analysis of non-Hermitian quadratic Hamiltonians
14. Comment on: 'On the characteristic polynomial of an effective Hamiltonian'
15. On the interaction of a magnetic quadrupole moment with an electric field in a rotating frame
16. About the effects of rotation on the Landau levels in an elastic medium with a spiral dislocation
17. On the problem of the vanishing discriminant
18. Extremely broken generalized $\mathcal{PT}$ symmetry
19. On the application of the Adomian-based methods
20. On the Rayleigh-Ritz variational method
21. Quantum particles in a suddenly accelerating potential
22. On the misinterpretation of conditionally-solvable quantum-mechanical problems
23. On the Q-BOR-FDTD method
24. Alternative solution to a quantum-mechanical four-particle system in one dimension
25. Formation of Two-Ion Crystals by Injection from a Paul-Trap Source into a High-Magnetic-Field Penning Trap
26. On the quantum-mechanical singular harmonic oscillator
27. An ubiquitous three-term recurrence relation
28. On a class of non-Hermitian Hamiltonians with tridiagonal matrix representation
29. A most misunderstood conditionally-solvable quantum-mechanical model
30. Symmetry and degeneracy, exceptional point and coalescence: a pedagogical approach
31. Comment on 'Eigenstate clustering around exceptional points'
32. Quasi-Hermitian one-dimensional lattice
33. Variational approach to the Schr\'odinger equation with a delta-function potential
34. Comment on: 'Bound states and the potential parameter spectrum'. J. Math. Phys. \textbf{67}, 062103 (2020)
35. On the Majorana solution to the Thomas-Fermi equation
36. Comment on: 'Aharonov-Bohm effect for bound states from the interaction of the magnetic quadrupole moment of a neutral particle with axial fields'. Phys. Rev. A 101, 032102 (2020)
37. Comment on: 'Threading dislocation densities in semiconductor crystals: A geometric approach'. Phys. Lett. A 376 (2012) 2838-2841
38. Comment on: 'On the Klein-Gordon oscillator subject to a Coulomb-type potential'. Ann. Phys. 355 (2015) 48 [arXiv:arXiv:1411.6988]
39. Comment on: 'Bound states for a Coulomb-type potential induced by the interaction between a moving electric quadrupole moment and a magnetic field'. Ann. Phys. 341 (2014) 86
40. Non-equilibrium Coupling of a Quartz Resonator to Ions for Penning-Trap Fast Resonant Detection
41. Comment on: 'On the Dirac oscillator subject to a Coulomb-type central potential induced by the Lorentz symmetry violation'
42. Comment on: 'Quantum aspects of the Lorentz symmetry violation on an electron in a nonuniform electric field' Eur. Phys. J. Plus (2020) 135:623
43. On the calculation of bound-state energies supported by hyperbolic double well potentials
44. Comment on: 'Solving many-body Schr\'odinger equations with kinetic energy partition method', Ann. Phys. 388 (2018) 54-68 by Y-H. Chen and S. D. Chao
45. Gross misinterpretation of a conditionally solvable eigenvalue equation
46. Comment on: 'Harmonic oscillator in an environment with a pointlike defect'. Phys. Scr. \textbf{94} ( 2019) 125301
47. Comment on: 'On the effects of the Lorentz symmetry violation yielded by a tensor field on the interaction of a scalar particle and a Coulomb-type field' Ann. Phys. 399 (2018) 117-123
48. Comment on: 'On the influence of a Coulomb-like potential induced by the Lorentz symmetry breaking effects on the harmonic oscillator'. Eur. Phys. J. Plus (2012) \textbf{127}: 102
49. Comment on: 'Some quantum aspects of a particle with electric quadrupole moment interacting with an electric field subject to confining potentials'. Int. J. Mod. Phys. A 29 (2014) 1450117
50. Comment on: 'Rashba coupling induced by Lorentz symmetry breaking effects'. Ann. Phys. (Berlin) \textbf{526}, 187 (2013)
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