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Universal non-Markovianity detection in hybrid open quantum systems
Jiří Svozilík1,2, Raúl Hidalgo-Sacoto3, Ievgen I Arkhipov4
1School of Physical Sciences and Nanotechnology, Yachay Tech University, 100119, Urcuquí, Ecuador. jiri.svozilik@gmail.com.
Scientific Reports
|October 27, 2020
Summary
A new method universally characterizes non-Markovianity in quantum systems using negativity volume. This approach quantifies quantum correlations in hybrid quantum systems, applicable to various variable types.
Area of Science:
- Quantum Information Science
- Quantum Many-Body Systems
- Quantum Foundations
Background:
- Characterizing non-Markovianity is crucial for understanding open quantum systems.
- Existing measures often lack universality across different quantum system types.
- Hybrid quantum systems present unique challenges for non-Markovianity assessment.
Purpose of the Study:
- To introduce a universal characterization of non-Markovianity for all open hybrid quantum systems.
- To provide a robust measure applicable to systems with discrete or continuous variables.
- To demonstrate the efficacy of the proposed measure through illustrative examples.
Main Methods:
- Formulation based on the negativity volume of the generalized Wigner function.
- Utilizing negativity volume as an indicator of quantum correlations.
- Application to single and multi-partite quantum systems.
Main Results:
- A universal characterization of non-Markovianity is established.
- The negativity volume effectively quantifies quantum correlations in composite systems.
- The measure's applicability is confirmed for diverse quantum systems and variable types.
Conclusions:
- The proposed negativity volume measure offers a universal tool for detecting non-Markovianity.
- This formulation enhances the study of quantum correlations in complex quantum systems.
- The method provides a powerful framework for analyzing open hybrid quantum dynamics.
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