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Browsing by Author "Giangreco Puletti, Valentina"

Browsing by Author "Giangreco Puletti, Valentina"

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    Entanglement entropy in generalised quantum Lifshitz models 
    Angel Ramelli, Juan Fernando; Giangreco Puletti, Valentina; Thorlacius, Larus (Springer Science and Business Media LLC, 2019-08-01)
    We compute universal finite corrections to entanglement entropy for generalised quantum Lifshitz models in arbitrary odd spacetime dimensions. These are generalised free field theories with Lifshitz scaling symmetry, where the dynamical critical exponent ...
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    Logarithmic negativity in quantum Lifshitz theories 
    Angel Ramelli, Juan Fernando; Berthiere, C.; Giangreco Puletti, Valentina; Thorlacius, Larus (Springer Science and Business Media LLC, 2020-09)
    We investigate quantum entanglement in a non-relativistic critical system by calculating the logarithmic negativity of a class of mixed states in the quantum Lifshitz model in one and two spatial dimensions. In 1+1 dimensions we employ a correlator ...
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    Non-analyticity of holographic Rényi entropy in Lovelock gravity 
    Giangreco Puletti, Valentina; Pourhasan, Razieh (Springer Nature, 2017-08)
    We compute holographic Rényi entropies for spherical entangling surfaces on the boundary while considering third order Lovelock gravity with negative cosmological constant in the bulk. Our study shows that third order Lovelock black holes with hyperbolic ...