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  1. Article

    Open Access

    Spacetime as a quantum circuit

    We propose that finite cutoff regions of holographic spacetimes represent quantum circuits that map between boundary states at different times and Wilsonian cutoffs, and that the complexity of those quantum ci...

    A. Ramesh Chandra, Jan de Boer, Mario Flory in Journal of High Energy Physics (2021)

  2. Article

    Open Access

    Conformal field theory complexity from Euler-Arnold equations

    Defining complexity in quantum field theory is a difficult task, and the main challenge concerns going beyond free models and associated Gaussian states and operations. One take on this issue is to consider co...

    Mario Flory, Michal P. Heller in Journal of High Energy Physics (2020)

  3. Article

    Open Access

    WdW-patches in AdS3 and complexity change under conformal transformations II

    We study the null-boundaries of Wheeler-de Witt (WdW) patches in three dimensional Poincaré-AdS, when the selected boundary timeslice is an arbitrary (non-constant) function, presenting some useful analytic st...

    Mario Flory in Journal of High Energy Physics (2019)

  4. Article

    Open Access

    Complexity change under conformal transformations in AdS3/CFT2

    Using the volume proposal, we compute the change of complexity of holographic states caused by a small conformal transformation in AdS3/CF T2. This computation is done perturbatively to second order. We give a ge...

    Mario Flory, Nina Miekley in Journal of High Energy Physics (2019)

  5. Article

    Open Access

    Time evolution of entanglement for holographic steady state formation

    Within gauge/gravity duality, we consider the local quench-like time evolution obtained by joining two 1+1-dimensional heat baths at different temperatures at time t = 0. A steady state forms and expands in space...

    Johanna Erdmenger, Daniel Fernández, Mario Flory in Journal of High Energy Physics (2017)

  6. Article

    Open Access

    A complexity/fidelity susceptibility g-theorem for AdS3/BCFT2

    We use a recently proposed holographic Kondo model as a well-understood example of AdS/boundary CFT (BCFT) duality and show explicitly that in this model the bulk volume decreases along the RG flow. We then ob...

    Mario Flory in Journal of High Energy Physics (2017)

  7. Article

    Open Access

    Quantum quenches in a holographic Kondo model

    We study non-equilibrium dynamics and quantum quenches in a recent gauge/gravity duality model for a strongly coupled system interacting with a magnetic impurity with SU(N ) spin. At large N , it is convenient to...

    Johanna Erdmenger, Mario Flory, Max-Niklas Newrzella in Journal of High Energy Physics (2017)

  8. Article

    Open Access

    Bending branes for DCFT in two dimensions

    We consider a holographic dual model for defect conformal field theories (DCFT) in which we include the backreaction of the defect on the dual geometry. In particular, we consider a dual gravity system in whic...

    Johanna Erdmenger, Mario Flory, Max-Niklas Newrzella in Journal of High Energy Physics (2015)

  9. Article

    Open Access

    Conditions on holographic entangling surfaces in higher curvature gravity

    We study the extremal surfaces of functionals recently proposed for the holographic calculation of entanglement entropy in general higher curvature theories, using New Massive gravity and Gauss-Bonnet gravity ...

    Johanna Erdmenger, Mario Flory, Charlotte Sleight in Journal of High Energy Physics (2014)