Density-wave phases of dipolar fermions in a bilayer

Abstract

We investigate the phase diagram of dipolar fermions with aligned dipole moments in a two-dimensional (2D) bilayer. Using a version of the Singwi-Tosi-Land-Sjolander scheme recently adapted to dipolar fermions in a single layer [M. M. Parish and F. M. Marchetti, Phys. Rev. Lett. 108, 145304 (2012)], we determine the density-wave instabilities of the bilayer system within linear response theory. We find that the bilayer geometry can stabilize the collapse of the 2D dipolar Fermi gas with intralayer attraction to form a new density wave phase that has an orientation perpendicular to the density wave expected for strong intralayer repulsion. We thus obtain a quantum phase transition between stripe phases that is driven by the interplay between strong correlations and the architecture of the low dimensional system.

5 pages, 3 figures

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Cited by in corpus (4)

• Properties of the density-wave phase of a two-dimensional dipolar Fermi gas
• Phase-diagram and dynamics of Rydberg-dressed fermions in two-dimensions
• Tilted dipolar bosons in the quasi-two-dimensional regime: From liquid stripes to droplets
• Multiple polaron quasiparticles with dipolar fermions in a bilayer geometry