Tunable Feshbach resonances and their spectral signatures in bilayer semiconductors

Autor:	Kuhlenkamp, Clemens, Knap, Michael, Wagner, Marcel, Schmidt, Richard, Imamoglu, Atac
Rok vydání:	2021
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Quantum Gases Condensed Matter - Strongly Correlated Electrons Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.129.037401
Popis:	Feshbach resonances are an invaluable tool in atomic physics, enabling precise control of interactions and the preparation of complex quantum phases of matter. Here, we theoretically analyze a solid-state analogue of a Feshbach resonance in two dimensional semiconductor heterostructures. In the presence of inter-layer electron tunneling, the scattering of excitons and electrons occupying different layers can be resonantly enhanced by tuning an applied electric field. The emergence of an inter-layer Feshbach molecule modifies the optical excitation spectrum, and can be understood in terms of Fermi polaron formation. We discuss potential implications for the realization of correlated Bose-Fermi mixtures in bilayer semiconductors. Comment: 6+2 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2105.01080 Zobrazit plný text záznamu View this record from Arxiv