7 papers
Signature in sound-mode of the exciton bilayer two-dimensional superfluid transition
Giovanni Midei, Filippo Pascucci, Milorad V. Milosevìc +3
Obtaining definitive evidence of exciton superfluidity in electron-hole bilayers in zero magnetic field remains a major longstanding challenge since the condensate is electrically…
Extending the Feynman variational principle and analytical methods to lattice polarons
S. N. Klimin, J. Tempere, M. Houtput +6
We develop and compare several analytical approximations for the ground state and zero-temperature polaron dispersion in finite-width, nonparabolic conduction bands. The main focus…
Effect of Population Imbalance on Vortex Mass in Superfluid Fermi Gases
Lucas Levrouw, Hiromitsu Takeuchi, Jacques Tempere
One of the fundamental parameters associated with quantized vortices in superfluids is the vortex mass, which is the inertia of a vortex. As of yet, this mass has not been observed…
Importance of nonlinear long-range electron-phonon interaction on the carrier mobility of anharmonic halide perovskites
Matthew Houtput, Ingvar Zappacosta, Serghei Klimin +3
The interaction between the electrons and the lattice vibrations in a solid is responsible for various important effects, such as formation of polarons, temperature dependent bandg…
Effective Three-Boson Interactions using a Separable Potential
Corinne Beckers, Jacques Tempere, Jeff Maki +1
Effective field theories (EFTs) are widely used to study many-body systems by describing two-body interactions using zero-ranged contact potentials. However, when extended to three…
Vortex Mass in Superfluid Fermi Gases along the BEC-BCS Crossover
Lucas Levrouw, Hiromitsu Takeuchi, Jacques Tempere
Vortex mass is a key concept in the study of superfluid dynamics, referring to the inertia of vortices in a superfluid, which affects their motion and behavior. Despite being an im…