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JOURNALS // Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics) // Archive

PFMT, 2025 Issue 3(64), Pages 49–55 (Mi pfmt1046)

PHYSICS

Spin 1/2 particle with anomalous magnetic moment and polarizability in the external magnetic field

A. V. Ivashkevicha, P. O. Sachenokb, E. M. Ovsiyukcb, V. V. Kiseld

a B.I. Stepanov Institute of Physics of National Academy of Sciences of Belarus, Minsk
b Mozyr State Pedagogical University named after I.P. Shamyakin
c Francisk Skorina Gomel State University
d Belarusian State Agrarian Technical University, Minsk

Abstract: In the present paper, we examine the equation for a spin 1/2 particle with two additional characteristics, anomalous magnetic moment and polarizability in presence of external uniform magnetic field. After separating the variables, we derive the system of four differential equations in the polar coordinate. To resolve the system of equations, we apply the method by Fedorov – Gronskiy, which is based on the use of projective operators. According to this approach, four polar components are expressed through only two different functions, the last reduce to the confluent hypergeometric equation; moreover there arises a definite quantization rule. We have constructed two types of the wave functions, the corresponding energy spectra are found in analytical form. The energy spectra are studied numerically as well.

Keywords: spin 1/2 particle, additional electromagnetic characteristics, magnetic field, projective operators, exact solutions, generalized energy spectra.

UDC: 539.12

Received: 22.04.2025

Language: English

DOI: 10.54341/20778708_2025_3_64_49



© Steklov Math. Inst. of RAS, 2025