111 citations · 974 across the 30 of their papers we have counts for
30 papers · 1 filter
Islands in Flat-Space Cosmology
Sanam Azarnia, Reza Fareghbal, Ali Naseh +1
Flat-space cosmologies (FSC) are solutions to three dimensional theories of gravity without cosmological constant that have cosmological horizons. A detector located near the time-…
Odd Entanglement Entropy and Logarithmic Negativity for Thermofield Double States
Mostafa Ghasemi, Ali Naseh, Reza Pirmoradian
We investigate the time evolution of odd entanglement entropy (OEE) and logarithmic negativity (LN) for the thermofield double (TFD) states in free scalar quantum field theories us…
On Free Energy for Deformed JT Gravity
Mohsen Alishahiha, Amin Faraji Astaneh, Ghadir Jafari +2
In this paper, we study a particular deformation of the Jackiw-Teitelboim gravity recently considered by Maxfield, Turiaci and independently by Witten. We will compute the partitio…
Island in the Presence of Higher Derivative Terms
Mohsen Alishahiha, Amin Faraji Astaneh, Ali Naseh
Using extended island formula we compute entanglement entropy of Hawking radiation for black hole solutions of certain gravitational models containing higher derivative terms. To b…
On the first law of holographic complexity
S. Sedigheh Hashemi, Ghadir Jafari, Ali Naseh
In this paper, we examine the proposed first law of holographic complexity through studying different perturbations around various spacetime backgrounds. We present a general expre…
Complexity for Charged Thermofield Double States
Mehregan Doroudiani, Ali Naseh, Reza Pirmoradian
We study Nielsen's circuit complexity for a charged thermofield double state (cTFD) of free complex scalar quantum field theory in the presence of background electric field. We sho…
Path Integral Optimization for Deformation
Ghadir Jafari, Ali Naseh, Hamed Zolfi
We use the path integral optimization approach of Caputa, kundu, Miyaji, Takayanagi and Watanabe to find the time slice of geometries dual to vacuum, primary and thermal states in…
More on Complexity in Finite Cut Off Geometry
S. Sedigheh Hashemi, Ghadir Jafari, Ali Naseh +1
It has been recently proposed that late time behavior of holographic complexity in a uncharged black brane solution of Einstein-Hilbert theory with boundary cut off is consistent w…
Complexity and Behind the Horizon Cut Off
Amin Akhavan, Mohsen Alishahiha, Ali Naseh +1
Motivated by deformation of a conformal field theory we compute holographic complexity for a black brane solution with a cut off using "complexity=action" proposal…
Entanglement Renormalization for Weakly Interacting Fields
Jordan Cotler, M. Reza Mohammadi Mozaffar, Ali Mollabashi +1
We adapt the techniques of entanglement renormalization tensor networks to weakly interacting quantum field theories in the continuum. A key tool is "quantum circuit perturbation t…
Renormalization Group Circuits for Weakly Interacting Continuum Field Theories
Jordan Cotler, M. Reza Mohammadi Mozaffar, Ali Mollabashi +1
We develop techniques to systematically construct local unitaries which map scale-invariant, product state wavefunctionals to the ground states of weakly interacting, continuum qua…
On Complexity for Higher Derivative Gravities
Mohsen Alishahiha, Amin Faraji Astaneh, Ali Naseh +1
Using "complexity=action" proposal we study complexity growth of certain gravitational theories containing higher derivative terms. These include critical gravity in diverse dimens…
On Butterfly effect in Higher Derivative Gravities
Mohsen Alishahiha, Ali Davody, Ali Naseh +1
We study butterfly effect in -dimensional gravitational theories containing terms quadratic in Ricci scalar and Ricci tensor. One observes that due to higher order derivatives i…
New Bi-Gravities
Amin Akhavan, Ali Naseh, Azadeh Nemati +1
We show that the problem of ghosts in critical gravity and its higher dimensional extensions can be resolved by giving dynamics to the symmetric rank two auxiliary field existing i…
Scale vs Conformal invariance from Entanglement Entropy
Ali Naseh
For a generic conformal field theory (CFT) in four dimensions, the scale anomaly dictates that the universal part of entanglement entropy across a sphere ($\mathcal{C}_{\text{univ}…
New Bi-Gravity from New Massive Garvity
Amin Akhavan, Mohsen Alishahiha, Ali Naseh +2
Using the action of three dimensional New Massive Gravity (NMG) we construct a new bi-gravity in three dimensions. This can be done by promoting the rank two auxiliary field appear…
Phase transitions in Bergshoeff-Hohm-Townsend Massive Gravity
Mahdis Ghodrati, Ali Naseh
We present the Hawking-Page phase diagrams in the Bergshoeff-Hohm-Townsend (BHT) massive gravity theory for different solutions, such as the phase transitions between vacuum $\text…
Holographic Renormalization of 3D Minimal Massive Gravity
Mohsen Alishahiha, Mohammad M. Qaemmaqami, Ali Naseh +1
We study holographic renormalization of 3D minimal massive gravity using the Chern-Simons-like formulation of the model. We explicitly present Gibbons- Hawking term as well as all…
Aspects of Ultra-Relativistic Field Theories via Flat-space Holography
Reza Fareghbal, Ali Naseh, Shahin Rouhani
Recently it was proposed that asymptotically flat spacetimes have a holographic dual which is an ultra-relativistic conformal field theory. In this paper, we obtain the conformal a…
Holographic Two-Point Functions in Conformal Gravity
Ahmad Ghodsi, Behnoush Khavari, Ali Naseh
In this paper we compute the holographic two-point functions of four dimensional conformal gravity. Precisely we calculate the two-point functions for Energy- Momentum (EM) and Par…
On 3D Minimal Massive Gravity
Mohsen Alishahiha, Mohammad M. Qaemmaqami, Ali Naseh +1
We study linearized equations of motion of the newly proposed three dimensional gravity, known as minimal massive gravity, using its metric formulation. We observe that the resulta…
Aspects of Flat/CCFT Correspondence
Reza Fareghbal, Ali Naseh
Flat/CCFT is a correspondence between gravity in asymptotically flat backgrounds and a field theory which is given by contraction of conformal field theory. In order to find a dict…
Rindler/Contracted-CFT Correspondence
Reza Fareghbal, Ali Naseh
Taking the flat-space limit (zero cosmological constant limit) of the Rindler-AdS spacetime yields the Rindler metric. According to the proposal of Flat/contracted-CFT corresponden…
Flat-Space Energy-Momentum Tensor from BMS/GCA Correspondence
Reza Fareghbal, Ali Naseh
Flat-space limit is well-defined for asymptotically AdS spacetimes written in coordinates called the BMS gauge. For the three-dimensional Einstein gravity with a negative cosmologi…