Details
| Original language | English |
|---|---|
| Article number | 033401 |
| Journal | Physical review letters |
| Volume | 127 |
| Issue number | 3 |
| Publication status | Published - 16 Jul 2021 |
Abstract
We investigate the problem of an infinitely heavy impurity interacting with a dilute Bose gas at zero temperature. When the impurity-boson interactions are short-ranged, we show that boson-boson interactions induce a quantum blockade effect, where a single boson can effectively block or screen the impurity potential. Since this behavior depends on the quantum granular nature of the Bose gas, it cannot be captured within a standard classical-field description. Using a combination of exact quantum Monte Carlo methods and a truncated basis approach, we show how the quantum correlations between bosons lead to universal few-body bound states and a logarithmically slow dependence of the polaron ground-state energy on the boson-boson scattering length. Moreover, we expose the link between the polaron energy and the spatial structure of the quantum correlations, spanning the infrared to ultraviolet physics.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 127, No. 3, 033401, 16.07.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Quantum Behavior of a Heavy Impurity Strongly Coupled to a Bose Gas
AU - Levinsen, Jesper
AU - Ardila, Luis A.Peña
AU - Yoshida, Shuhei M.
AU - Parish, Meera M.
N1 - Funding Information: Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Australian Research Council Funding Information: We gratefully acknowledge fruitful discussions with Nils-Eric Guenther, Victor Gurarie, Pietro Massignan, and Zheyu Shi. J. L. and M. M. P. are supported through Australian Research Council Future Fellowships FT160100244 and FT200100619, respectively. J. L. and M. M. P. also acknowledge support from the Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies (CE170100039).
PY - 2021/7/16
Y1 - 2021/7/16
N2 - We investigate the problem of an infinitely heavy impurity interacting with a dilute Bose gas at zero temperature. When the impurity-boson interactions are short-ranged, we show that boson-boson interactions induce a quantum blockade effect, where a single boson can effectively block or screen the impurity potential. Since this behavior depends on the quantum granular nature of the Bose gas, it cannot be captured within a standard classical-field description. Using a combination of exact quantum Monte Carlo methods and a truncated basis approach, we show how the quantum correlations between bosons lead to universal few-body bound states and a logarithmically slow dependence of the polaron ground-state energy on the boson-boson scattering length. Moreover, we expose the link between the polaron energy and the spatial structure of the quantum correlations, spanning the infrared to ultraviolet physics.
AB - We investigate the problem of an infinitely heavy impurity interacting with a dilute Bose gas at zero temperature. When the impurity-boson interactions are short-ranged, we show that boson-boson interactions induce a quantum blockade effect, where a single boson can effectively block or screen the impurity potential. Since this behavior depends on the quantum granular nature of the Bose gas, it cannot be captured within a standard classical-field description. Using a combination of exact quantum Monte Carlo methods and a truncated basis approach, we show how the quantum correlations between bosons lead to universal few-body bound states and a logarithmically slow dependence of the polaron ground-state energy on the boson-boson scattering length. Moreover, we expose the link between the polaron energy and the spatial structure of the quantum correlations, spanning the infrared to ultraviolet physics.
UR - http://www.scopus.com/inward/record.url?scp=85110271652&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2102.06368
DO - 10.48550/arXiv.2102.06368
M3 - Article
C2 - 34328775
AN - SCOPUS:85110271652
VL - 127
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 3
M1 - 033401
ER -