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Determination of thermodynamics from entanglement entropy in the finite-density O(N) model
Niko Jokela, Aatu Rajala, Tobias Rindlisbacher
We nonperturbatively compute Rényi entropies for strip-shaped subregions in the three-dimensional O(4) model at finite density on the lattice. By using a dual variable representati…
Thermal and chemical response from entanglement entropy
Niko Jokela, Aatu Rajala, Tobias Rindlisbacher
We study entanglement entropy (EE) in interacting quantum field theories (QFTs) at finite density. We argue that, in the limit of large subregions, the derivative of EE with respec…
Lattice studies of entanglement entropy in models at finite densities
Aatu Rajala, Niko Jokela, Tobias Rindlisbacher
As a characteristic property of all quantum systems, entanglement participates in many important quantum phenomena. In this proceeding, we employ it in the study of quantum field t…