Publications [#303601] of Harold U. Baranger

Papers Published
  1. Mehta, AC; Umrigar, CJ; Meyer, JS; Baranger, HU, Zigzag Phase Transition in Quantum Wires, Physical Review Letters, vol. 110 no. 24 (June, 2013), pp. 246802 [1302.5429v2], [doi] .

    We study the quantum phase transition of interacting electrons in quantum wires from a one-dimensional (1D) linear configuration to a quasi-1D zigzag arrangement using quantum Monte Carlo methods. As the density increases from its lowest values, first, the electrons form a linear Wigner crystal; then, the symmetry about the axis of the wire is broken as the electrons order in a quasi-1D zigzag phase; and, finally, the electrons form a disordered liquid-like phase. We show that the linear to zigzag phase transition is not destroyed by the strong quantum fluctuations present in narrow wires; it has characteristics which are qualitatively different from the classical transition.