Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session G60: Poster Session I
Tuesday, March 6, 2018
LACC Room: West Hall A
Abstract: G60.00254 : Density Wave Instability in Bilayer Dipolar Systems in the Antoparallel Configuration*
(Department of Physics, Bilkent University)
(Department of Physics, Institiute for Asvanced Studies in Basic Sciences)
We consider a bilayer of dipolar particles in which the polarization of dipoles is perpendicular to the planes, in the antiparallel configuration. Using accurate static structure factor S(q) data from hypernetted-chain and Fermi hypernetted-chain calculations, respectively
for an isolated layer of dipolar bosons and dipolar fermions, we construct effective screened intralayer interactions. Adopting the random-phase approximation for interlayer interactions, we investigate the instability of these homogeneous bilayer systems towards the
formation of density waves by studying the poles of the density-density response function. We have also studied the collective modes of these systems and found that the dispersion of their antisymmetric collective mode signals the emergence of the density wave instability.
*This work is supported in part by TUBA.
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700