Influence of Photon Subsystem on the Magnetic Properties of Quantum Gases

M. Bulakhov; A.S. Peletminskii; Yu.V. Slyusarenko

doi:10.15407/ujpe69.8.600

Influence of Photon Subsystem on the Magnetic Properties of Quantum Gases

Authors

M. Bulakhov O.I. Akhiezer Institute of Theoretical Physics, National Scientific Center “Kharkiv Physical and Technical Institute”, Nat. Acad. of Sci. of Ukraine, V.N. Karazin National University of Kharkiv
A.S. Peletminskii O.I. Akhiezer Institute of Theoretical Physics, National Scientific Center “Kharkiv Physical and Technical Institute”, Nat. Acad. of Sci. of Ukraine, V.N. Karazin National University of Kharkiv
Yu.V. Slyusarenko O.I. Akhiezer Institute of Theoretical Physics, National Scientific Center “Kharkiv Physical and Technical Institute”, Nat. Acad. of Sci. of Ukraine, V.N. Karazin National University of Kharkiv, National University “Lviv Polytechnic”

DOI:

https://doi.org/10.15407/ujpe69.8.600

Keywords:

quantum gases, two-level atoms, photons, external magnetic field, thermodynamic equilibrium, non-degenerate state, inverse population, magnetic properties of the medium

Abstract

The possibility for the photon component to affect the magnetic properties of a system of quantum gases of two-level atoms staying in thermodynamic equilibrium with radiation (photons) has been studied. A corresponding simple model has been proposed, which enabled the general equations describing the thermodynamic equilibrium in this system to be derived. The resulting equations are solved in the temperature interval far from the degeneracy temperatures of all three system components. The analysis of the solutions testified to a non-trivial behavior of the system’s magnetic state as a response to changes in the photon density and the intensity of the external magnetic field. It is shown that the growth of the photon density induced in the system by external sources can increase both system’s magnetization and the density of excited atoms. Such a conclusion is not trivial a priori given the fact that photons in the vacuum have no magnetic moment.

References

A. Einstein. Quantentheorie des einatomigen idealen Gases. Sitzber. Kgl. Preuss. Akad. Wiss. 1, 3 (1925).

S.N. Bose. Plancks Gesetz und Lichtquantenhypothese. Z. Phys. 26, 178 (1924).

https://doi.org/10.1007/BF01327326

E. Fermi. Sulla quantizzazione del gas perfetto monoatomico. Rend. Lincei 3, 145 (1926).

P.A.M. Dirac. On the theory of quantum mechanics. Proc. R. Soc. Lond. A 112, 661 (1926).

https://doi.org/10.1098/rspa.1926.0133

A.S. Peletmiskii, Yu.V. Slyusarenko, A.G. Sotnikov. Theory of Exotic States in Quantum Fermi and Bose Systems (Naukova dumka, 2023) (in Ukrainian).

A. Kruchkov, Y. Slyusarenko. Bose-Einstein condensation of photons in an ideal atomic gas. Phys. Rev. A 88, 013615 (2013).

https://doi.org/10.1103/PhysRevA.88.013615

N. Boichenko, Y. Slyusarenko. Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases. Condens. Matter Phys. 18, 43002 (2015).

https://doi.org/10.5488/CMP.18.43002

J. Klaers, J. Schmitt, F. Vewinger, M. Weitz. Bose-Einstein condensation of photons in an optical microcavity. Nature 468, 545 (2010).

https://doi.org/10.1038/nature09567

Y.V. Slyusarenko, O.Y. Sliusarenko. Kinetic theory of weakly ionized dilute gas of hydrogen-like atoms of the first principles of quantum statistics and dispersion laws of eigenwaves. J. Math. Phys. 58, 1133021 (2017).

https://doi.org/10.1063/1.5010334

Y. Kawaguchi, M. Ueda. Spinor Bose-Einstein condensates. Phys.Rept. 520, 253 (2012).

https://doi.org/10.1016/j.physrep.2012.07.005

B. Altschul. Astrophysical bounds on the photon charge and magnetic moment. Astropart. Phys. 29, 290 (2008).

https://doi.org/10.1016/j.astropartphys.2008.02.006

H. P'erez Rojas, E. Rodr'ıguez Querts. The photon magnetic moment problem revisited. Eur. Phys. J. C 74, 2899 (2014).

https://doi.org/10.1140/epjc/s10052-014-2899-y

Z. Saglam, G. Sahin. Magnetic moment of photon. J. Mod. Phys. 6, 937 (2015).

https://doi.org/10.4236/jmp.2015.67098

L.D. Landau, E.M. Lifshitz. Statistical Physics. Part 1 (Pergamon Press, 1980).

https://doi.org/10.1016/B978-0-08-057046-4.50008-7

Downloads

Published

2024-09-18

How to Cite

Bulakhov, M., Peletminskii, A., & Slyusarenko, Y. (2024). Influence of Photon Subsystem on the Magnetic Properties of Quantum Gases. Ukrainian Journal of Physics, 69(8), 600. https://doi.org/10.15407/ujpe69.8.600

Download Citation

Issue

Vol. 69 No. 8 (2024)

Section

Physics of magnetic phenomena and physics of ferroics

License

Copyright Agreement
License to Publish the Paper
Kyiv, Ukraine

The corresponding author and the co-authors (hereon referred to as the Author(s)) of the paper being submitted to the Ukrainian Journal of Physics (hereon referred to as the Paper) from one side and the Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, represented by its Director (hereon referred to as the Publisher) from the other side have come to the following Agreement:

1. Subject of the Agreement.
The Author(s) grant(s) the Publisher the free non-exclusive right to use the Paper (of scientific, technical, or any other content) according to the terms and conditions defined by this Agreement.

2. The ways of using the Paper.
2.1. The Author(s) grant(s) the Publisher the right to use the Paper as follows.
2.1.1. To publish the Paper in the Ukrainian Journal of Physics (hereon referred to as the Journal) in original language and translated into English (the copy of the Paper approved by the Author(s) and the Publisher and accepted for publication is a constitutive part of this License Agreement).
2.1.2. To edit, adapt, and correct the Paper by approval of the Author(s).
2.1.3. To translate the Paper in the case when the Paper is written in a language different from that adopted in the Journal.
2.2. If the Author(s) has(ve) an intent to use the Paper in any other way, e.g., to publish the translated version of the Paper (except for the case defined by Section 2.1.3 of this Agreement), to post the full Paper or any its part on the web, to publish the Paper in any other editions, to include the Paper or any its part in other collections, anthologies, encyclopaedias, etc., the Author(s) should get a written permission from the Publisher.

3. License territory.
The Author(s) grant(s) the Publisher the right to use the Paper as regulated by sections 2.1.1–2.1.3 of this Agreement on the territory of Ukraine and to distribute the Paper as indispensable part of the Journal on the territory of Ukraine and other countries by means of subscription, sales, and free transfer to a third party.

4. Duration.
4.1. This Agreement is valid starting from the date of signature and acts for the entire period of the existence of the Journal.

5. Loyalty.
5.1. The Author(s) warrant(s) the Publisher that:
– he/she is the true author (co-author) of the Paper;
– copyright on the Paper was not transferred to any other party;
– the Paper has never been published before and will not be published in any other media before it is published by the Publisher (see also section 2.2);
– the Author(s) do(es) not violate any intellectual property right of other parties. If the Paper includes some materials of other parties, except for citations whose length is regulated by the scientific, informational, or critical character of the Paper, the use of such materials is in compliance with the regulations of the international law and the law of Ukraine.

6. Requisites and signatures of the Parties.
Publisher: Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine.
Address: Ukraine, Kyiv, Metrolohichna Str. 14-b.
Author: Electronic signature on behalf and with endorsement of all co-authors.