2024/08/09 by Mitra, Akash, Srivastava, Shashi C. L. · 2 citations
#FOS: Physical sciences #Quantum Physics (quant-ph) #Statistical Mechanics (cond-mat.stat-mech) #Strongly Correlated Electrons (cond-mat.str-el)
paper · doi:10.48550/arxiv.2408.05063
We investigate the entanglement structure of a bipartite quantum system through the lens of quantum thermodynamics in the absence of conformal symmetry. Specifically, we consider the long-range Kitaev model, where the pairing interaction decays as a power law with exponent α, with broken conformal symmetry for α<3/2. We analytically show that the bound energy, a quantum thermodynamical quantity, is linearly proportional to the square of entanglement entropy per unit system size for α=1 where conformal symmetry is broken. We further show that for all values of α, bound energy, in the thermodynamic limit, shows a pronounced minimum at the critical point, which enables the identification of μ=1.