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arXiv · 1108.1560

Exciton supersolidity in hybrid Bose-Fermi systems

Michal Matuszewski·Thomas Taylor·Alexey V. Kavokin
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Abstract

We investigate the ground states of a Bose-Einstein condensate of indirect excitons coupled to an electron gas. We show that in a properly designed system, the crossing of a roton minimum into the negative energy domain can result in the appearance of the supersolid phase, characterized by periodicity in both real and reciprocal space. Accounting for the spin-dependent exchange interaction of excitons we obtain ferromagnetic supersolid domains. The Fourier spectra of excitations of weakly perturbed supersolids show pronounced diffraction maxima which may be detected experimentally.

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Michal Matuszewski, Thomas Taylor, Alexey V. Kavokin. 2011-11-23. Exciton supersolidity in hybrid Bose-Fermi systems. https://doi.org/10.1103/physrevlett.108.060401

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