Publications [#184647] of Shailesh Chandrasekharan

Papers Published
  1. D. Podolski, S. Chandrasekharan and A.Vishwanath, Phase Transitions of S=1 Spinor Condensates in an optical lattice, Physical Review B, vol. 80 (2009), pp. 214513 [e214513] .

    We study the phase diagram of spin-one polar condensates in a two dimensional optical lattice with magnetic anisotropy. We show that the topological binding of vorticity to nematic disclinations allows for a rich variety of phase transitions. These include Kosterlitz-Thouless-like transitions with a superfluid stiff ness jump that can be experimentally tuned to take a continuous set of values, and a new cascaded Kosterlitz-Thouless" transition, characterized by two divergent length scales. For higher boson spin S, the thermal phase transitions are strongly a ffected by the parity of S.