Vortices with scalar condensates in two-component Ginzburg–Landau systems

P. Forgács, Árpád Lukács

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In a class of two-component Ginzburg–Landau models (TCGL) with a U(1) × U(1) symmetric potential, vortices with a condensate at their core may have significantly lower energies than the Abrikosov–Nielsen–Olesen (ANO) ones. On the example of liquid metallic hydrogen (LMH) above the critical temperature for protons we show that the ANO vortices become unstable against core-condensation, while condensate-core (CC) vortices are stable. For LMH the ratio of the masses of the two types of condensates, M=m2/m1 is large, and then as a consequence the energy per flux quantum of the vortices, En/n becomes a non-monotonous function of the number of flux quanta, n. This leads to yet another manifestation of neither type 1 nor type 2, (type 1.5) superconductivity: superconducting and normal domains coexist while various “giant” vortices form. We note that LMH provides a particularly clean example of type 1.5 state as the interband coupling between electronic and protonic Cooper-pairs is forbidden.

Original languageEnglish
Pages (from-to)271-275
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume762
DOIs
Publication statusPublished - Nov 10 2016

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metallic hydrogen
condensates
liquid hydrogen
vortices
scalars
critical temperature
superconductivity
condensation
protons
energy
electronics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Vortices with scalar condensates in two-component Ginzburg–Landau systems. / Forgács, P.; Lukács, Árpád.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 762, 10.11.2016, p. 271-275.

Research output: Contribution to journalArticle

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