Browsing by Subject "Transição-de-fase"

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    • Effective-action approach to dirty bosons in optical lattices 

      Souza, Renan da Silva (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 21/02/2019)
      A system of cold bosonic atoms loaded in an optical lattice potential can undergo a macroscopic phase transition due to quantum fluctuations. As the depth of the lattice potential is increased, the ground state of the ...