Field theory description of vacuum replicas
  In this paper we develop a systematic quantum field theory based approach to the vacuum replica recently found to exist in effective low energy models in hadronic physics. A local operator creating the replica state is constructed explicitly. We show that a new effective quark-quark force arises in result of replica existence. Phenomenological implications of such a force are also briefly discussed. 
A.V.Nefediev (IST, Lisbon and ITEP, Moscow), J.E.F.T.Ribeiro (IST,   Lisbon)