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Updated: May 5, 2026
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Generation and Transfer of Entanglement in a Circular Spin System
Vinh Le Duc1, Joanna K Kalaga2, Wiesław Leoński2
1Tinh Gia 3 High School, Nghi Son District, Thanh Hóa 42700, Vietnam.
Entropy (Basel, Switzerland)
|May 4, 2026
Summary
This study explores entanglement transfer in a six-spin model. Adjusting coupling strength controls entanglement, enhancing specific spin pairs and quantifying it using negativity.
Area of Science:
- Quantum mechanics
- Condensed matter physics
- Spin systems
Background:
- Understanding quantum entanglement is crucial for quantum information science.
- Spin models provide a framework for studying quantum phenomena.
Purpose of the Study:
- To analyze entanglement transfer in a circular six-spin Ising model.
- To investigate the influence of coupling strength on entanglement dynamics.
- To explore the relationship between mixedness and entanglement.
Main Methods:
- Modeling a six-spin system in a circular configuration.
- Analyzing initial states as either entangled or product states.
- Quantifying entanglement using negativity and mixedness using linear entropy.
Main Results:
- Entanglement transfer among spin pairs is dependent on coupling strength.
- Specific coupling parameter selection can enhance generated entanglement.
- Control over which spin pair becomes strongly entangled is achievable.
- The relationship between linear entropy and negativity was investigated.
Conclusions:
- Coupling strength is a key parameter for controlling and enhancing entanglement in spin systems.
- The study provides insights into managing quantum correlations in multi-spin systems.
- The findings contribute to the understanding of entanglement dynamics and quantification.
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