2 citations · 4 across the 5 of their papers we have counts for
5 papers
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:…
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…
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…
Quasispins of vacancy defects and their interactions in disordered antiferromagnets
Muhammad Sedik, Shijun Sun, Arthur P. Ramirez +1
Vacancy defects in disordered magnetic materials are known to act as effective spins, ``quasispins'', in response to an external magnetic field. In the dilute limit, the contributi…
Yang-Lee Zeros of Certain Antiferromagnetic Models
Muhammad Sedik, Junaid Majeed Bhat, Abhishek Dhar +1
We revisit the somewhat less studied problem of Yang-Lee zeros of the Ising antiferromagnet. For this purpose, we study two models, the nearest-neighbor model on a square lattice,…