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H. Babaei-Aghbolagh

Bio: H. Babaei-Aghbolagh is an academic researcher from University of Mohaghegh Ardabili. The author has contributed to research in topics: Physics & Conformal map. The author has an hindex of 3, co-authored 4 publications receiving 25 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper , the deformation of the ModMax theory was investigated under the flow invariance for Born-Infeld theories, and it was shown that the deformed theory is the generalized non-linear Born-infeld electrodynamics.

61 citations

Journal ArticleDOI
TL;DR: In this paper , the deformation of the ModMax theory was investigated under the flow invariance for Born-Infeld theories, and it was shown that the deformed theory is the generalized non-linear Born-infeld electrodynamics.

26 citations

Journal ArticleDOI
TL;DR: In this article, a flow equation for non-linear electrodynamic theories in D(2n)-dimensional spacetime was derived from a simple integration technique, and it was shown that this flow equation is compatible with the classical free action in higher dimensions.
Abstract: We investigate the $$ T\overline{T} $$ -like flows for non-linear electrodynamic theories in D(=2n)-dimensional spacetime. Our analysis is restricted to the deformation problem of the classical free action by employing the proposed $$ T\overline{T} $$ operator from a simple integration technique. We show that this flow equation is compatible with $$ T\overline{T} $$ deformation of a scalar field theory in D = 2 and of a non-linear Born-Infeld type theory in D = 4 dimensions. However, our computation discloses that this kind of $$ T\overline{T} $$ flow in higher dimensions is essentially different from deformation that has been derived from the AdS/CFT interpretations. Indeed, the gravity that may be exist as a holographic dual theory of this kind of effective Born-Infeld action is not necessarily an AdS space. As an illustrative investigation in D = 4, we shall also show that our construction for the $$ T\overline{T} $$ operator preserves the original SL(2, ℝ) symmetry of a non-supersymmetric Born-Infeld theory, as well as $$ \mathcal{N} $$ = 2 supersymmetric model. It is shown that the corresponding SL(2, ℝ) invariant action fixes the relationship between the $$ T\overline{T} $$ operator and quadratic form of the energy-momentum tensor in D = 4.

20 citations

Journal ArticleDOI
TL;DR: In this paper, the authors employ the complexity-plus-action conjecture to investigate the action growth rate for the charged and neutral AdS black branes of a holographic toy model consisting of Einstein-Maxwell theory in ($d+1$)-dimensional bulk spacetime with massless scalar fields.
Abstract: We employ the ``complexity equals action'' conjecture to investigate the action growth rate for the charged and neutral AdS black branes of a holographic toy model consisting of Einstein-Maxwell theory in ($d+1$)-dimensional bulk spacetime with $d\ensuremath{-}1$ massless scalar fields, which is called Einstein-Maxwell-axion theory. From the holographic point of view, the scalar fields source a spatially dependent field theory with momentum relaxation on the boundary, which is dual to the homogeneous and isotropic black branes. We find that the growth rate of the holographic complexity within the Wheeler-DeWitt patch saturates the corresponding Lloyd bound at the late-time limit. Especially for the neutral AdS black branes, it will be shown that the complexity growth rate at late time vanishes for a particular value of the relaxation parameter ${\ensuremath{\beta}}_{\mathrm{max}}$ where the temperature of the black hole is minimal. Then, we investigate the transport properties of the holographic dual theory in the minimum temperature. A nonlinear contribution of the axion field kinetic term in the context of the $k$-essence model in the four-dimensional spacetime is considered as well. We also study the time evolution of the holographic complexity for the dyonic AdS black branes in this model.

13 citations

Journal ArticleDOI
TL;DR: In this article, the tree-level S-matrix elements of one Ramond-Ramond and three open strings were found to be invariant to the standard rules of S-duality, and a SL(2, R) invariant form of the D3-brane effective action with derivative corrections was derived from one-loop level four-point amplitude.
Abstract: Recently, it has been observed that the IIB scattering amplitudes are compatible with the standard rules of S-duality. Inspired by this observation, we will find the tree-level S-matrix elements of one Ramond-Ramond and three open strings by imposing this symmetry on the tree-level S-matrix elements of one Kalb-Ramond and three open strings. We also find a SL(2, R) invariant form of the D3-brane effective action containing four gauge fields with derivative corrections that was derived from one-loop level four-point amplitude. Using the expansion of the nonlinear SL(2, R) invariant structures, we find the action with derivative corrections at the level of more gauge fields

10 citations


Cited by
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Journal Article
TL;DR: In this article, the information retrieval from evaporating black holes is studied under the assumption that the internal dynamics of a black hole is unitary and rapidly mixing, and assuming that the retriever has unlimited control over the emitted Hawking radiation.
Abstract: We study information retrieval from evaporating black holes, assuming that the internal dynamics of a black hole is unitary and rapidly mixing, and assuming that the retriever has unlimited control over the emitted Hawking radiation. If the evaporation of the black hole has already proceeded past the ``half-way'' point, where half of the initial entropy has been radiated away, then additional quantum information deposited in the black hole is revealed in the Hawking radiation very rapidly. Information deposited prior to the half-way point remains concealed until the half-way point, and then emerges quickly. These conclusions hold because typical local quantum circuits are efficient encoders for quantum error-correcting codes that nearly achieve the capacity of the quantum erasure channel. Our estimate of a black hole's information retention time, based on speculative dynamical assumptions, is just barely compatible with the black hole complementarity hypothesis.

752 citations

Journal ArticleDOI
TL;DR: In this paper , the deformation of the ModMax theory was investigated under the flow invariance for Born-Infeld theories, and it was shown that the deformed theory is the generalized non-linear Born-infeld electrodynamics.

61 citations

Journal ArticleDOI
TL;DR: In this paper , the deformation of the ModMax theory was investigated under the flow invariance for Born-Infeld theories, and it was shown that the deformed theory is the generalized non-linear Born-infeld electrodynamics.

26 citations

Journal ArticleDOI
29 Mar 2022
TL;DR: In this paper , the authors studied the evolution of the subregion complexity corresponding to deformations of the bath state by a relevant scalar operator, which corresponds to a renormalization group flow from the anti-de Sitter-Schwarzschild to the Kasner universe in the bulk.
Abstract: Considering a doubly holographic model, we study the evolution of holographic subregion complexity corresponding to deformations of the bath state by a relevant scalar operator, which corresponds to a renormalization group flow from the anti--de Sitter-Schwarzschild to the Kasner universe in the bulk. The subregion complexity shows a discontinuous jump at Page time at a fixed perturbation, where the discontinuity depends solely on the system's parameters. We show that the amount of discontinuity decreases with the perturbation as well as with the scaling dimension of the relevant scalar operator.

24 citations

DOI
TL;DR: In this article , it was shown that the ModMax theory of electrodynamics and its Born-Infeld-like generalization are related by a flow equationdriven by a quadratic combination of stress-energy tensors.
Abstract: We show that the recently introduced ModMax theory of electrodynamics and its Born-Infeld-like generalization are related by a flow equation driven by a quadratic combination of stress-energy tensors. The operator associated to this flow is a 4d4d analogue of the T\overline{T}TT¯ deformation in two dimensions. This result generalizes the observation that the ordinary Born-Infeld Lagrangian is related to the free Maxwell theory by a current-squared flow. As in that case, we show that no analogous relationship holds in any other dimension besides d=4d=4. We also demonstrate that the \mathcal{N}=1𝒩=1 supersymmetric version of the ModMax-Born-Infeld theory obeys a related supercurrent-squared flow which is formulated directly in \mathcal{N} = 1𝒩=1 superspace.

23 citations