Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy

The investigation of novel electronic phases in low-dimensional quantum materials demands for the concurrent development of new measurement techniques that combine surface sensitivity with high spatial resolution and high measurement accuracy. We propose a quantum sensing imaging modality based on s...

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Main Author: Berthold Jäck
Format: Article
Language:English
Published: American Physical Society 2020-10-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.043031
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author Berthold Jäck
author_facet Berthold Jäck
author_sort Berthold Jäck
collection DOAJ
description The investigation of novel electronic phases in low-dimensional quantum materials demands for the concurrent development of new measurement techniques that combine surface sensitivity with high spatial resolution and high measurement accuracy. We propose a quantum sensing imaging modality based on superconducting charge qubits to study dissipative charge-carrier dynamics with nanometer spatial and better than nanosecond temporal resolution. Using analytical and numerical calculations, we show that superconducting-charge-qubit microscopy (SCQM) has the potential to resolve temperature and resistivity changes in a sample as small as ΔT≤0.1mK and Δρ≤1×10^{4}Ωcm, respectively. Among other applications, SCQM will be especially suited to study the microscopic mechanisms underlying interaction driven quantum phase transitions, to investigate the boundary modes found in novel topological insulators and, more broadly, to visualize dissipative charge-carrier dynamics occurring in mesoscopic and nanoscale devices.
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spelling doaj.art-0a18a16e8f894f92996d2ea05cd128602024-04-12T17:01:56ZengAmerican Physical SocietyPhysical Review Research2643-15642020-10-012404303110.1103/PhysRevResearch.2.043031Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopyBerthold JäckThe investigation of novel electronic phases in low-dimensional quantum materials demands for the concurrent development of new measurement techniques that combine surface sensitivity with high spatial resolution and high measurement accuracy. We propose a quantum sensing imaging modality based on superconducting charge qubits to study dissipative charge-carrier dynamics with nanometer spatial and better than nanosecond temporal resolution. Using analytical and numerical calculations, we show that superconducting-charge-qubit microscopy (SCQM) has the potential to resolve temperature and resistivity changes in a sample as small as ΔT≤0.1mK and Δρ≤1×10^{4}Ωcm, respectively. Among other applications, SCQM will be especially suited to study the microscopic mechanisms underlying interaction driven quantum phase transitions, to investigate the boundary modes found in novel topological insulators and, more broadly, to visualize dissipative charge-carrier dynamics occurring in mesoscopic and nanoscale devices.http://doi.org/10.1103/PhysRevResearch.2.043031
spellingShingle Berthold Jäck
Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy
Physical Review Research
title Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy
title_full Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy
title_fullStr Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy
title_full_unstemmed Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy
title_short Visualizing dissipative charge-carrier dynamics at the nanoscale with superconducting-charge-qubit microscopy
title_sort visualizing dissipative charge carrier dynamics at the nanoscale with superconducting charge qubit microscopy
url http://doi.org/10.1103/PhysRevResearch.2.043031
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