- By:
- Baul, Anshumitra ; Lotshaw, Phillip C
- Page Number:
- 594-595
- Book Title:
- 2025 IEEE International Conference on Quantum Computing and Engineering (QCE)
- Publication Date:
- May 11, 2026
- Conference Name:
- 2025 IEEE International Conference on Quantum Computing and Engineering (QCE)
- Conference Location:
- Albuquerque, New Mexico, United States of America
- Conference Sponsor:
- IEEE
- View DOI Listing:
- https://doi.org/10.1109/QCE65121.2025.10462
Abstract
We simulate quantum spin systems and measure entanglement using circuits tailored for near-term quantum computers. Traditional tools like entanglement entropy are limited to pure states and require full state tomography, making them impractical on current hardware. Instead, we employ the novel approach, Positive Partial Transpose (PPT) criterion to efficiently detect pairwise entanglement from two-spin reduced density matrices, applicable to both pure and mixed states. This method enables scalable entanglement detection, providing a practical route to study quantum correlations, phase transitions, and benchmark quantum devices.
