Realizing the interacting resonant level model using a quantum dot detector

Fuente: arXiv
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Main Authors: Ma, Zhanyu, Lotem, Matan, Meir, Yigal, Sela, Eran
Format: Preprint
Published: 2024
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author Ma, Zhanyu
Lotem, Matan
Meir, Yigal
Sela, Eran
author_facet Ma, Zhanyu
Lotem, Matan
Meir, Yigal
Sela, Eran
contents The interacting resonant level model (IRLM) is the simplest quantum impurity model to display strongly correlated effects in mesoscopic systems, which triggered its extensive theoretical study. However, to date, there have not been any realizations of the model with controllable interaction parameter, and thus the detailed predictions could not be confirmed. Here we use a recently developed approach to Anderson orthogonality catastrophe physics, using a charge detector coupled to a quantum dot (QD) system, to devise a simple experimental system which could display IRLM behavior and detail its predictions. At the same time, the mapping to IRLM allows us to determine the interaction parameter of the charge detector using simple experimental probes.
format Preprint
id arxiv_https___arxiv_org_abs_2412_00801
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Realizing the interacting resonant level model using a quantum dot detector
Ma, Zhanyu
Lotem, Matan
Meir, Yigal
Sela, Eran
Mesoscale and Nanoscale Physics
The interacting resonant level model (IRLM) is the simplest quantum impurity model to display strongly correlated effects in mesoscopic systems, which triggered its extensive theoretical study. However, to date, there have not been any realizations of the model with controllable interaction parameter, and thus the detailed predictions could not be confirmed. Here we use a recently developed approach to Anderson orthogonality catastrophe physics, using a charge detector coupled to a quantum dot (QD) system, to devise a simple experimental system which could display IRLM behavior and detail its predictions. At the same time, the mapping to IRLM allows us to determine the interaction parameter of the charge detector using simple experimental probes.
title Realizing the interacting resonant level model using a quantum dot detector
topic Mesoscale and Nanoscale Physics
url https://arxiv.org/abs/2412.00801