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    • Keywords


      Quantum chromodynamics; vacuum structure; phase transition; Bogoliubov transformation; variational methods

    • Abstract


      We study the vacuum structure in QCD in a nonperturbative manner using a variational approach with gluon condensates. We show that in Coulomb gauge as the coupling becomes moderately strong, the perturbative vacuum of QCD becomes unstable leading to gluon condensates and a gauge dependent effective mass for the gluons related to the gauge independent value of 〈vac‖GμνaGaμν‖vac〉 of Shifmanet al.

    • Author Affiliations


      A Mishra1 2 H Mishra1 S P Misra1 S N Nayak1

      1. Institute of Physics, Bhubaneswar - 751 005, India
      2. Physics Department, Utkal University, Bhubaneswar - 751 004, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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