Atomic lattice excitons: from condensates to crystals
A. Kantian, A. J. Daley, P. Torma, P. Zoller
TL;DR
This paper explores atomic lattice excitons (ALEs) in optical lattices, analyzing their properties, phases, and experimental detection methods through theoretical and numerical approaches.
Contribution
It introduces a comprehensive study of ALEs, including their formation, phases, and potential for experimental realization, combining mean-field and numerical methods.
Findings
Identification of conditions for exciton condensation and crystal formation
Analysis of ALE properties using mean-field and 1D numerical methods
Proposals for experimental preparation and measurement of ALEs
Abstract
We discuss atomic lattice excitons (ALEs), bound particle-hole pairs formed by fermionic atoms in two bands of an optical lattice. Such a system provides a clean setup to study fundamental properties of excitons, ranging from condensation to exciton crystals (which appear for a large effective mass ratio between particles and holes). Using both mean-field treatments and 1D numerical computation, we discuss the properities of ALEs under varying conditions, and discuss in particular their preparation and measurement.
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