Abstract
An impermeable barrier at \(r = {{r}_{{{\text{cl}}}}}\) in the effective potential of the relativistic Schrödinger-type equation leads to exclusion of the range \(0 \leqslant r < {{r}_{{{\text{cl}}}}}\) from the wave function domain. Based on the duality of the Schrödinger-type equation and the Dirac equation, a similar exclusion should be made in the wave function domain of the Dirac equation. As a result, we obtain new solutions to the Dirac equation in the Coulomb repulsion field. Calculations show that depending on working parameters, at distances of fractions or units of the Compton wavelength of the fermion from \(r = {{r}_{{{\text{cl}}}}}\) new solutions almost coincide with the standard Coulomb functions of the continuous spectrum. Practically, matrix elements with new solutions will coincide to a good accuracy with standard matrix elements with the Coulomb functions of the continuous spectrum. Our consideration is methodological and helpful for discussing further development of quantum theory.
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REFERENCES
V. B. Berestetskii, E. M. Lifshits, and L. P. Pitaevskii, Quantum Electrodynamics (Nauka, Moscow, 2006; Elsevier, 2012).
W. Pauli, “Die Allgemeinen Prinzipien der Wellenmechanik,” in Handbuch der Physik, Ed. By H. Geiger and K. Shell (Springer, Berlin, 1933), Vol. 24, Part 1.
Ya. B. Zel’dovich and V. S. Popov, “Electronic structure of superheavy atoms,” Sov. Phys. Usp. 14, 673 (1972).
M. V. Gorbatenko and V. P. Neznamov, “Quantum mechanics of stationary states of particles in a space-time of classical black holes,” Theor. Math. Phys. 205, 1492—1526 (2020).
K. M. Case, “Singular potentials,” Phys. Rev. 80, 797 (1950).
L. D. Landau and E. M. Lifshits, Quantum Mechanics. Nonrelativistic Theory (Fizmatlit, Moscow, 1963; Elsevier, 2013).
A. M. Perelomov and V. S. Popov, “Fall to the center” in quantum mechanics”, Theor. Math. Phys. 4, 664–6777 (1970).
V. P. Neznamov and I. I. Safronov, “Stationary solutions of second-order equations for point fermions in the Schwarzschild gravitational field”, J. Exp. Theor. Phys. 127, 647–658 (2018).
V. P. Neznamov, I. I. Safronov, and V. E. Shemarulin, “Stationary solutions of second-order equations for fermions in Reissner–Nordström space-time,” J. Exp. Theor. Phys. 127, 684—704 (2018).
V. P. Neznamov, I. I. Safronov, and V. E. Shemarulin, “Stationary solutions of the second-order equation for fermions in Kerr-Newman space-time,” J. Exp. Theor. Phys. 128, 84 (2019).
V. P. Neznamov and I. I. Safronov, “Second-order stationary solutions for fermions in an external Coulomb field,” J. Exp. Theor. Phys. 128, 672 (2019).
H. Pruefer, “Neue Herleitung der Sturm-Liouvilleschen Reihenentwicklung Stetiger Funktionen,” Math. Ann. 95, 499 (1926).
I. Ulehla and M. Havliček, “New method for computation of discrete spectrum,” Appl. Math 25, 257 (1980).
I. Ulehla, M. Havliček, and J. Hořejši, “Eigenvalues of the Schrödinger operator via the Pruefer transformation,” Phys. Lett. A 82, 64 (1981).
I. Ulehla, “On some applications of the Prüfer transformation and its extensions,” Preprint No. RL-82-095 (Rutherford Appleton Lab. Chilton, 1982).
L. L. Foldy and S. A. Wouthuysen, “On the Dirac theory of spin 1/2 particles and its non-relativistic limit,” Phys. Rev. 78, 29 (1950);
E. Eriksen, “Foldy–Wouthuysen transformation. Exact solution with generalization to the two-particle problem,” Phys. Rev. 111, 1011 (1958);
V. P. Neznamov and A. J. Silenko, “Foldy–Wouthuysen wave functions and conditions of transformation between Dirac and Foldy–Wouthuysen representations,” J. Math. Phys. 50, 122302 (2009).
A. J. Silenko, Pengming Zhang, and Liping Zou, “Silenko, Zhang, and Zou Reply,” Phys. Rev. Lett. 122, 159302 (2019).
Liping Zou, Pengming Zhang and A. J. Silenko, “Position and spin in relativistic quantum mechanics,” Phys. Rev. A 101, 032117 (2020).
A. J. Silenko, “General properties of the Foldy–Wouthuysen transformation and applicability of the corrected original Foldy-Wouthuysen method,” Phys. Rev. A 93, 022108 (2016).
V. P. Neznamov, “On the theory of interacting fields in Foldy–Wouthuysen representation,” Phys. Part. Nucl. 37, 86—103 (2006).
V. P. Neznamov, “The isotopic Foldy–Wouthuysen representation and chiral symmetry,” Phys. Part. Nucl. 43, 15–35 (2012).
V. P. Neznamov and V. E. Shemarulin, “Quantum electrodynamics with self-conjugated equations with spinor wave functions for fermion fields,” Int. J. Mod. Phys. A 36, 2150086 (2021).
L. S. Holster, “Scalar formalism for quantum electrodynamics,” J. Math. Phys. 26, 1348 (1985).
V. P. Neznamov, “The lack of vacuum polarization in quantum electrodynamics with spinors in fermion equations,” Int. J. Mod. Phys. A 36, 2150173 (2021).
A. Lasenby, S. Dolan, J. Prutchard, A. Caceres, and S. Dolan, “Bound states and decay times of fermions in a Schwarzschild black hole background,” Phys. Rev. D 72, 105014 (2005).
I. G. Petrovskii, Lectures on Partial Differential Equations (Fiz.-Mat. Lit., Moscow, 1961; Dover Publications. 1992).
V. S. Vladimirov, Equations of Mathematical Physics (Nauka, Moscow, 1981; Mir Publishers, 1971).
J. Dittrich and P. Exner, “Tunneling through a singular potential barrier,” J. Math. Phys. 26, 2000 (1985).
G. Gabrielse, D. Hanneke, T. Kinoshita, M. Nio, and B. Odom, “New determination of the fine structure constant from the electron g value and QED,” Phys. Rev. Lett. 97, 030802 (2006).
Yu. V. Prokhorov (Chief Ed.), Encyclopedic Dictionary of Mathematics (Sov. Entsiklopediya, Moscow, 1988) [in Russian]
A. F. Andreev, Singular Points of Differential Equations (Vysshaya Shkola, Minsk, 1979) [in Russian].
ACKNOWLEDGMENTS
The authors are grateful to A.L. Novoselov for his substantial technical assistance in preparation of the paper.
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Neznamov, V.P., Safronov, I.I. & Shemarulin, V.E. Something New about Radial Wave Functions of Fermions in the Repulsive Coulomb Field. Phys. Part. Nuclei 53, 1126–1137 (2022). https://doi.org/10.1134/S1063779622060053
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DOI: https://doi.org/10.1134/S1063779622060053