Effects of Fermion Flavor on Exciton Condensation in Double Layer Systems

Abstract

We use fermionic path integral quantum Monte Carlo to study the effects of fermion flavor on the physical properties of dipolar exciton condensates in double layer systems. We find that by including spin in the system weakens the effective interlayer interaction strength, yet this has very little effect on the Kosterlitz-Thouless transition temperature. We further find that, to obtain the correct description of screening, it is necessary to account for correlation in both the interlayer and intralayer interactions. We show that while the excitonic binding cannot completely surpress screening by additional fermion flavors, their screening effectiveness is reduced leading to a much higher transition temperatures than predicted with large-N analysis.

4 pages, 3 figures

References in corpus (6)

• Room-Temperature Superfluidity in Graphene Bilayers
• Excitonic condensation of massless fermions in graphene bilayers
• Electron screening and excitonic condensation in double-layer graphene systems
• Superfluidity and dimerization in a multilayered system of fermionic polar molecules
• Critical tunneling currents in the regime of bilayer excitons
• Quantum phase transitions of polar molecules in bilayer systems

Cited by in corpus (5)

• Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
• Effective dipole-dipole interactions in multilayered dipolar Bose-Einstein condensates
• Topological Excitonic Superfluids in Three Dimensions
• Voltage Induced Dynamical Quantum Phase Transitions in Exciton Condensates
• Collective excitations and quantum incompressibility in electron-hole bilayers