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Analytical study of a finite-range impurity in a one-dimensional Bose gas
T. Alper YoÄurt, Matthew T. Eiles
One-dimensional Bose gases present an interesting setting to study the physics of Bose polarons, as density fluctuations play an enhanced role due to reduced dimensionality. Theore…
Quasiparticle properties of long-range impurities in a Bose condensate
T. Alper YoÄurt, Matthew T. Eiles
An impurity immersed in a Bose condensate can form a quasiparticle known as a Bose polaron. When the impurity-boson interaction is short-ranged, the quasiparticle properties can be…
Anisotropic and non-additive interactions of a Rydberg impurity in a quantum bath
Aileen A. T. Durst, Seth T. Rittenhouse, H. R. Sadeghpour +1
We present a framework for treating anisotropic and non-additive impurity-bath interactions - features that are ubiquitous in realistic quantum impurity problems, but are often neg…
Unified theory of attractive and repulsive polarons in one-dimensional Bose gas
Nikolay Yegovtsev, T. Alper YoÄurt, Matthew T. Eiles +1
We present a unified description of attractive and repulsive polarons, formed in a one-dimensional Bose gas hosting an impurity particle, by obtaining all ground and excited state…
Phenomenology of a Rydberg impurity in an ideal Bose Einstein condensate
Aileen A. T. Durst, Matthew T. Eiles
We investigate the absorption spectrum of a Rydberg impurity immersed in and interacting with an ideal Bose-Einstein condensate. Here, the impurity-bath interaction can greatly exc…