Confinement and screening in tachyonic matter

The European Physical Journal C

M. L. F. Freire¹  F. A. Brito²  W. Serafim³ 

[1] Departamento de Física, Universidade Estadual da Paraíba, 58109-753, Campina Grande, Paraíba, Brazil;Departamento de Física, Universidade Federal de Campina Grande, 58109-970, Campina Grande, Paraíba, Brazil;Departamento de Física, Universidade Federal de Campina Grande, 58109-970, Campina Grande, Paraíba, Brazil;Instituto de Física, Universidade Federal de Alagoas, 57072-970, Maceió, Alagoas, Brazil;

关键词: Scalar Field;    Heavy Quark;    Dielectric Function;    Dielectric Medium;    Magnetic Monopole;   

DOI  :  10.1140/epjc/s10052-014-3202-y

来源: Springer

【 摘 要 】

In this paper we consider confinement and screening of the electric field. We study the behavior of a static electric field coupled to a dielectric function with the intent of obtaining an electrical confinement similar to what happens with the field of gluons that bind quarks in hadronic matter. For this we use the phenomenon of ‘anti-screening’ in a medium with exotic dielectric. We show that tachyon matter behaves like in an exotic way whose associated dielectric function modifies the Maxwell equations and affects the fields which results in confining and Coulombian-like potentials in three spatial dimensions. We note that the confining regime coincides with the tachyon condensation, which resembles the effect of confinement due to the condensation of magnetic monopoles. The Coulombian-like regime is developed at large distance, which is associated with a screening phase.

【 授权许可】

CC BY