Phase diagram of the dissipative quantum particle in a box

J. Sabio, L. Borda, F. Guinea, F. Sols

Research output: Contribution to journalArticle

3 Citations (Scopus)


We analyze the phase diagram of a quantum particle confined to a finite chain and subjected to a dissipative environment described by an ohmic spectral function. Analytical and numerical techniques are employed to explore both the perturbative and nonperturbative regimes of the model. For small dissipation of the coupling to the environment leads to a narrowing of the density distribution and to a displacement toward the center of the array of accessible sites. For large values of the dissipation, we find a phase transition to a doubly degenerate phase, which reflects the formation of an inhomogeneous effective potential within the array.

Original languageEnglish
Article number085439
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
Publication statusPublished - Aug 28 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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