3 papers
cond-mat.str-el2026
Partition function zeros of quantum many-body systems: perturbative results
Muhammad Sedik, B Sriram Shastry
A systematic method to find the Yang-Lee partition function zeros of quantum many-body systems based on perturbation theory at finite temperatures was recently introduced in arXiv:…
cond-mat.dis-nn2025
Specific-heat anomaly in frustrated magnets with vacancy defects
Muhammad Sedik, Siyu Zhu, Sergey Syzranov
Motivated by frustrated magnets and spin-liquid-candidate materials, we study the thermodynamics of a 2D geometrically frustrated magnet with vacancy defects. The presence of vacan…
cond-mat.stat-mech2025
Yang-Lee Zeros of 2D Nearest-Neighbor Antiferromagnetic Ising Models: A Numerical Linked Cluster Expansion Study
Mahmoud Abdelshafy, Muhammad Sedik
We study Yang-Lee zeros in the thermodynamic limit of the 2D nearest-neighbor antiferromagnetic Ising model on square and triangular lattices. We employ the Numerical Linked Cluste…