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Updated: Oct 7, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Shortcuts to adiabaticity for open systems in circuit quantum electrodynamics.
Zelong Yin1, Chunzhen Li1, Jonathan Allcock1
1Tencent Quantum Laboratory, Tencent, 518057, Shenzhen, Guangdong, China.
Researchers demonstrated shortcuts to adiabaticity for open quantum systems using superconducting circuits. This method significantly speeds up quantum state evolution, reducing time from 800ns to 100ns for a single mode.
Area of Science:
- Quantum Control
- Quantum Technologies
- Open Quantum Systems
Background:
- Shortcuts to adiabaticity (STA) enable rapid quantum state evolution, crucial for quantum technologies.
- Existing STA protocols are primarily demonstrated in closed quantum systems.
- Implementing STA in open quantum systems is challenging due to complex control requirements.
Purpose of the Study:
- To experimentally demonstrate shortcuts to adiabaticity for open quantum systems.
- To reduce the adiabatic evolution time in a lossy quantum system.
- To develop and implement an optimal control protocol for fast equilibrium of multiple lossy modes.
Main Methods:
- Utilized a superconducting circuit quantum electrodynamics system.
- Applied a counterdiabatic driving pulse to a single lossy mode.
- Developed and implemented an optimal control protocol for multi-mode systems.
Main Results:
- Reduced adiabatic evolution time for a single lossy mode from 800 ns to 100 ns.
- Achieved fast and qubit-unconditional equilibrium for multiple lossy modes.
- Experimental validation of STA in open quantum systems.
Conclusions:
- Paved the way for precise time-domain control of open quantum systems.
- Potential applications in accelerating quantum technologies and interdisciplinary fields like bioengineering and chemical dynamics.
- Demonstrated the feasibility of STA protocols for open quantum systems.
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