aqora

Polaritons for testing the universality of an impurity in a Bose-Einstein condensate

Arturo Camacho-Guardian

The propagation of slow light encodes the universal features of a strongly interacting impurity in a Bose-Einstein condensate. The author proposes the use of polariton physics as a nondestructive measurement tool for impurity physics and to investigate polaron physics in the single-impurity limit.

arXiv:2304.04880Physical Review AAug 31, 20234 citations

Phonon-mediated interactions and polaron formation of slow-light polaritons in a BEC

Hanna-Lena Haug, Michael Fleischhauer

Bulletin of the American Physical SocietyJun 4, 20140 citations

Slow Polaritons in Atomic Bose-Einstein Condensates

Gediminas Juzeliūnas, H. J. Carmichael

Springer eBooksJan 1, 20030 citations

Nonlinear Atom Optics

Brian P. Anderson, Pierre Meystre

Interatomic interactions can introduce nonlinear behavior into a system of trapped ultracold atoms, similar to the dynamics of light propagating in a refractive nonlinear medium. Bose-Einstein condensates are now providing the means for studying coherent nonlinear dynamics with dilute atomic systems.

Optics and Photonics NewsJun 1, 20024 citations

Impurities and polarons in bosonic quantum gases: a review on recent progress

Fabian Grusdt, Nader Mostaan, Eugene Demler +1 more

This review describes the field of Bose polarons, arising when mobile impurities are immersed into a bosonic quantum gas. The latter can be realized by a Bose-Einstein condensate (BEC) of ultracold atoms, or of exciton polaritons in a semiconductor, which has led to a series of experimental observations of Bose polarons near inter-species Feshbach resonances that we survey. Following an introduction to the topic, with references to its historic roots and a presentation of the Bose polaron Hamiltonian, we summarize state-of-the-art experiments. Next we provide a detailed discussion of polaron models, starting from the ubiquitous Fröhlich Hamiltonian that applies at weak couplings. We proceed by a survey of concurrent theoretical methods used for solving strongly interacting Bose polaron problems. The subsequent sections are devoted to the large bodies of work investigating strong coupling Bose polarons, including detailed comparisons with radio-frequency (RF) spectra obtained in ultracold atom experiments; to investigations of universal few-body and Efimov states associated with a Feshbach resonance in atomic mixtures; to studies of quantum dynamics and polarons out of equilibrium; Bose polarons in low-dimensional; induced interactions among polarons and bipolaron formation; and to Bose polarons at non-zero temperatures. We end our review by detailed discussions of closely related experimental setups and systems, including ionic impurities, systems with strong light-matter interactions, and variations and extensions of the Bose polaron concepts e.g. to baths with topological order or strong interactions relevant for correlated electrons. Finally, an outlook is presented, highlighting possible future research directions and open questions in the field as a whole.This review describes the field of Bose polarons, arising when mobile impurities are immersed into a bosonic quantum gas. The latter can be realized by a Bose-Einstein condensate (BEC) of ultracold atoms, or of exciton polaritons in a semiconductor, which has led to a series of experimental observations of Bose polarons near inter-species Feshbach resonances that we survey. Following an introduction to the topic, with references to its historic roots and a presentation of the Bose polaron Hamiltonian, we summarize state-of-the-art experiments. Next we provide a detailed discussion of polaron models, starting from the ubiquitous Fröhlich Hamiltonian that applies at weak couplings. We proceed by a survey of concurrent theoretical methods used for solving strongly interacting Bose polaron problems. The subsequent sections are devoted to the large bodies of work investigating strong coupling Bose polarons, including detailed comparisons with radio-frequency (RF) spectra obtained in ultracold atom experiments; to investigations of universal few-body and Efimov states associated with a Feshbach resonance in atomic mixtures; to studies of quantum dynamics and polarons out of equilibrium; Bose polarons in low-dimensional; induced interactions among polarons and bipolaron formation; and to Bose polarons at non-zero temperatures. We end our review by detailed discussions of closely related experimental setups and systems, including ionic impurities, systems with strong light-matter interactions, and variations and extensions of the Bose polaron concepts e.g. to baths with topological order or strong interactions relevant for correlated electrons. Finally, an outlook is presented, highlighting possible future research directions and open questions in the field as a whole.

arXiv:2410.09413Oct 12, 20240 citations

Analyzing Dynamics of a Bright Soliton in Bose-Einstein Condensates with Time-Dependent Atomic Scattering Length

Wang, Tian-Yuan, Zhang +1 more

理论物理通讯：英文版Jan 1, 20090 citations

Polariton dynamics in strongly interacting quantum many-body systems

Abstract

Related papers

Polariton dynamics in strongly interacting quantum many-body systems

Abstract

Related papers