2009/06/24 by Wojciech Brzezicki, Andrzej M. Oles, Andrzej M Oleś
Chemistry · Mathematics · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Algebraic structures and combinatorial models #Compass #Ground state #Heat kernel #Kernel (algebra) #Polynomial #Quantum #Quantum many-body systems #Square (algebra) #cond-mat.str-el
paper · pdf · doi:10.1088/1742-6596/200/1/012017
published as Journal of Physics: Conference Series 200, 012017 (2010) · 4 pages, 2 figures, submitted to J. Phys. Conf. Series
arxiv created 2009/06/24 · openalex publication_date 2010/01/01 · arxiv updated 2010/05/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We obtained exact specific heat of the quantum compass model on the square L × L clusters with L = 2, 3, 4, 5 using Kernel Polynomial Method and compare them with the specific heat of a large compass ladder. Intersite correlations found in the ground state for these systems demonstrate that the quantum compass model differs from its classical version.