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Article
Open AccessSpacetime 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...
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Article
Open AccessConformal 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...
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Article
Open AccessWdW-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...
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Article
Open AccessComplexity 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...
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Article
Open AccessTime 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...
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Article
Open AccessA 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...
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Open AccessQuantum 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...
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Article
Open AccessBending 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...
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Article
Open AccessConditions 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 ...