2born (2born) wrote,
2born
2born

Electromagnetic superconductivity of vacuum induced by strong magnetic field

The quantum vacuum may become an electromagnetic superconductor in the presence of a strong external magnetic field of the order of 10^{16} Tesla. The magnetic field of the required strength (and even stronger) is expected to be generated for a short time in ultraperipheral collisions of heavy ions at the Large Hadron Collider. The superconducting properties of the new phase appear as a result of a magnetic-field-assisted condensation of quark-antiquark pairs with quantum numbers of electrically charged rho mesons. We discuss similarities and differences between the suggested superconducting state of the quantum vacuum, a conventional superconductivity and the Schwinger pair creation. We argue qualitatively and quantitatively why the superconducting state should be a natural ground state of the vacuum at the sufficiently strong magnetic field. We demonstrate the existence of the superconducting phase using both the Nambu-Jona-Lasinio model and an effective bosonic model based on the vector meson dominance (the rho-meson electrodynamics). We discuss various properties of the new phase such as absence of the Meissner effect, anisotropy of superconductivity, spatial inhomogeneity of ground state, emergence of a neutral superfluid component in the ground state and presence of new topological vortices in the quark-antiquark condensates. Comments:     37 pages, 14 figures, to appear in Lect. Notes Phys. "Strongly interacting matter in magnetic fields" (Springer), edited by D. Kharzeev, K. Landsteiner, A. Schmitt, H.-U. Yee
http://arxiv.org/abs/1208.5025 
Tags: наука, разгребая arXiv'ы
Subscribe

  • Снова ондатра в роли котика

    или Для дома, для семьи - 2. На этот раз более традиционная пища - какое-то водное растение. Разница между тем фото и этим - 17 минут:…

  • Еще графотворчества от друга и коллеги

    Оказывается, краски он забросил не сразу, как начал работать в Дубне. Вот символическое изображение проекта "Сфера" для синхрофазотрона (детектор…

  • Для дома, для семьи

    В роли пятничного котика - ондатра, доставляющая яблоко в свою нору (21 июля): DSC_2353Ондатра_корр.jpg © qedqed.iMGSRC.RU…

  • Post a new comment

    Error

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.
  • 0 comments