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 Pis'ma v Zh. Èksper. Teoret. Fiz., 2012, Volume 95, Issue 1, Pages 33–36 (Mi jetpl2414)

CONDENSED MATTER

Effective proton-proton interaction and metallization of hydrogen

V. T. Shvets

The Odessa State Academy of Refrigeration

Abstract: The effective proton-proton interaction in metallic hydrogen has been calculated for various densities. In the potential of this interaction, which can be represented in the form of a series of perturbation theory in the electron-proton interaction, the second- and third-order terms are taken into account. The second-order term gives a comparatively shallow potential well with one minimum. The position of the minimum corresponds to the equilibrium mutual position of protons in metallic hydrogen. When the third-order term is additionally taken into account, the potential has two characteristic minima; the position of one of them corresponds to the distance between the protons in a hydrogen molecule. The depths of these potential wells depend on the density of the system. At fairly high densities, only the potential well corresponding to the equilibrium position of protons in the metallic phase holds in the proton-proton potential. Owing to the presence of two minima in the effective proton-proton potential, the density of hydrogen at the point of transition to the metallic state can be estimated. Analysis of the effective proton-proton interaction makes it also possible to estimate the possibility of the existence of metallic hydrogen in a stable state at quite low temperatures.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2012, 95:1, 29–32

Bibliographic databases:

Document Type: Article
Revised: 28.11.2011

Citation: V. T. Shvets, “Effective proton-proton interaction and metallization of hydrogen”, Pis'ma v Zh. Èksper. Teoret. Fiz., 95:1 (2012), 33–36; JETP Letters, 95:1 (2012), 29–32

Citation in format AMSBIB
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Citing articles on Google Scholar: Russian citations, English citations
Related articles on Google Scholar: Russian articles, English articles

This publication is cited in the following articles:
1. Shvets V.T., “Pair-Effective Interionic Interaction and Metallization of Helium”, Phys. Metals Metallogr., 113:10 (2012), 927–931
2. Shvets V.T., “Equation of State of Metallic Helium”, J. Exp. Theor. Phys., 116:1 (2013), 159–165
3. Shvets V.T. Kozitskii S.V., “Electrical Conductivity and Thermopower of Metallic Helium”, Phys. Solid State, 55:4 (2013), 681–686
4. Shvets V.T., “Metallic Helium Under Natural Conditions”, Metallofiz. Nov. Tekhnol.-Met. Phys. Adv. Techn., 35:7 (2013), 863–877
5. Shvets V.T., “Interaction of Protons in Metallic Hydrogen”, Phys. Metals Metallogr., 116:4 (2015), 328–335
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