Understanding Quantum Information Flow in Spin Systems
Author Information
Author(s): Chen Jiahui, Niknam Mohamad, Cory David
Primary Institution: Institute for Quantum Computing, University of Waterloo
Hypothesis
How can we efficiently characterize the quantum information flow, loss, and recovery in a central spin system?
Conclusion
The study presents an efficient method to track information flow and mixing in a central spin system, revealing complex dynamics with both short-term and long-term memory effects.
Supporting Evidence
- The central spin system serves as a useful model for a single qubit.
- The study quantifies the extent of mixing and growth of correlations through autocorrelation functions.
- Complementary decoupling experiments provide a measure of the strength of the system Hamiltonians.
Takeaway
This study shows how to measure how information moves and changes in a tiny quantum system, helping us understand and improve quantum technologies.
Methodology
The study uses stimulated echo experiments and decoupling experiments to measure information flow and memory effects in a central spin system.
Limitations
The study may not capture all aspects of environmental dynamics due to the complexity of the system.
Digital Object Identifier (DOI)
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