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Updated: Sep 2, 2025
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
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TEM at millikelvin temperatures: Observing and utilizing superconducting qubits
Hiroshi Okamoto1, Reza Firouzmandi2, Ryosuke Miyamura1
1Department of Intelligent Mechatronics, Akita Prefectural University, 84-4, Aza Ebinokuchi, Tsuchiya, Yurihonjo, Akita 015-0055, Japan.
Micron (Oxford, England : 1993)
|August 6, 2022
Summary
We propose developing a millikelvin-temperature transmission electron microscope (TEM) to observe quantum phenomena. This advanced TEM could enable low-dose electron microscopy beyond the standard quantum limit.
Area of Science:
- Quantum Engineering
- Materials Science
- Microscopy
Background:
- Superconducting quantum circuitry has advanced significantly.
- Existing transmission electron microscopes (TEMs) have limitations in observing delicate quantum states.
- Millikelvin temperatures are crucial for maintaining quantum coherence.
Purpose of the Study:
- To present a case for developing a millikelvin-temperature transmission electron microscope (TEM).
- To explore new possibilities for quantum state observation using TEM.
- To outline potential applications and engineering challenges.
Main Methods:
- Review of existing literature on TEM and superconducting quantum circuitry.
- Proposal of novel methods for observing quantum phenomena with TEM.
- Description of ongoing experimental efforts towards building a millikelvin TEM.
Main Results:
- Identification of possibilities to observe quantum mechanically superposed electromagnetic fields around superconducting qubits.
- Proposal for TEM observation of microwave photons in unusual quantum states within resonators.
- Potential for low-dose electron microscopy surpassing the standard quantum limit.
Conclusions:
- A millikelvin TEM offers unprecedented capabilities for quantum state imaging.
- This technology could revolutionize fields requiring high-resolution quantum observation.
- Engineering challenges are significant but surmountable with ongoing research.
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