121 citations · 953 across the 29 of their papers we have counts for
31 papers
Symmetry resolved entanglement in Lifshitz field theories
M. Reza Mohammadi Mozaffar, Ali Mollabashi
We investigate symmetry-resolved entanglement in non-relativistic quantum field theories, including complex Lifshitz scalar chains and Lifshitz fermionic models. Using charged mome…
Scrambling Without Chaos in Random Free-Fermionic Systems
Ali Mollabashi, Mohammad-Javad Vasli
We study the role of randomness in the scrambling of quantum information within integrable free-fermionic systems. Considering quadratic Hamiltonians with varying degrees of random…
Multi-entropy and the Dihedral Measures at Quantum Critical Points
Jonathan Harper, Ali Mollabashi, Tadashi Takayanagi +1
The multi-entropy and dihedral measures are a class of tractable measures for multi-partite entanglement, which are labeled by the Rényi index (or replica number) as in the Rén…
Information Scrambling in Bosonic Gaussian Dynamics
Ali Mollabashi, Saleh Rahimi-Keshari
We investigate the dynamics of information scrambling in bosonic systems undergoing Gaussian unitary evolution associated with quadratic Hamiltonians. For initial Gaussian states,…
Entanglement in Lifshitz Fermion Theories
Mohammad Javad Vasli, Komeil Babaei Velni, M. Reza Mohammadi Mozaffar +1
We study the static entanglement structure in (1+1)-dimensional free Dirac-fermion theory with Lifshitz symmetry and arbitrary integer dynamical critical exponent. This model is di…
Krylov Complexity in Lifshitz-type Scalar Field Theories
M. J. Vasli, K. Babaei Velni, M. R. Mohammadi Mozaffar +2
We investigate various aspects of the Lanczos coefficients in a family of free Lifshitz scalar theories, characterized by their integer dynamical exponent, at finite temperature. I…
Timelike entanglement entropy
Kazuki Doi, Jonathan Harper, Ali Mollabashi +2
We define a new complex-valued measure of information called the timelike entanglement entropy (EE) which in the boundary theory can be viewed as a Wick rotation that changes a spa…
Pseudo Entropy in dS/CFT and Time-like Entanglement Entropy
Kazuki Doi, Jonathan Harper, Ali Mollabashi +2
We study holographic entanglement entropy in dS/CFT and introduce time-like entanglement entropy in CFTs. Both of them take complex values in general and are related with each othe…
Information Scrambling Versus Quantum Revival Through the Lens of Operator Entanglement
Kanato Goto, Ali Mollabashi, Masahiro Nozaki +2
In this paper, we look for signatures of quantum revivals in two-dimensional conformal field theories (2d CFTs) on a spatially compact manifold by using operator entanglement. It i…
On the Time Scaling of Entanglement in Integrable Scale-Invariant Theories
M. Reza Mohammadi Mozaffar, Ali Mollabashi
In two dimensional isotropic scale invariant theories, the time scaling of the entanglement entropy of a segment is fixed via the conformal symmetry. We consider scale invariance i…
Aspects of Pseudo Entropy in Field Theories
Ali Mollabashi, Noburo Shiba, Tadashi Takayanagi +2
In this article, we explore properties of pseudo entropy [1] in quantum field theories and spin systems from several approaches. Pseudo entropy is a generalization of entanglement…
Pseudo Entropy in Free Quantum Field Theories
Ali Mollabashi, Noburo Shiba, Tadashi Takayanagi +2
Pseudo entropy is an interesting quantity with a simple gravity dual, which generalizes entanglement entropy such that it depends on both an initial and a final state. Here we reve…
A Field Theory Study of Entanglement Wedge Cross Section: Odd Entropy
Ali Mollabashi, Kotaro Tamaoka
We study odd entanglement entropy (odd entropy in short), a candidate of measure for mixed states holographically dual to the entanglement wedge cross section, in two-dimensional f…
Universal Scaling in Fast Quenches Near Lifshitz-Like Fixed Points
M. Reza Mohammadi Mozaffar, Ali Mollabashi
We study critical dynamics through time evolution of quantum field theories driven to a Lifshitz-like fixed point, with , under relevant deformations. The deformations we cons…
Entanglement Evolution in Lifshitz-type Scalar Theories
M. Reza Mohammadi Mozaffar, Ali Mollabashi
We study propagation of entanglement after a mass quench in free scalar Lifshitz theories. We show that entanglement entropy goes across three distinct growth regimes before relaxi…
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…
Complexity Growth with Lifshitz Scaling and Hyperscaling Violation
Mohsen Alishahiha, Amin Faraji Astaneh, M. Reza Mohammadi Mozaffar +1
Using complexity=action proposal we study the growth rate of holographic complexity for Lifshitz and hyperscaling violating geometries. We will consider both one and two sided blac…
Logarithmic Negativity in Lifshitz Harmonic Models
M. Reza Mohammadi Mozaffar, Ali Mollabashi
Recently generalizations of the harmonic lattice model has been introduced as a discrete approximation of bosonic field theories with Lifshitz symmetry with a generic dynamical exp…
Entanglement in Lifshitz-type Quantum Field Theories
M. Reza Mohammadi Mozaffar, Ali Mollabashi
We study different aspects of quantum entanglement and its measures, including entanglement entropy in the vacuum state of a certain Lifshitz scalar theory. We present simple intui…
Holographic Subregion Complexity for Singular Surfaces
Elaheh Bakhshaei, Ali Mollabashi, Ahmad Shirzad
Recently holographic prescriptions are proposed to compute quantum complexity of a given state in the boundary theory. A specific proposal known as `holographic subregion complexit…
Non-local Probes in Holographic Theories with Momentum Relaxation
M. Reza Mohammadi Mozaffar, Ali Mollabashi, Farzad Omidi
We consider recently introduced solutions of Einstein gravity with minimally coupled massless scalars. The geometry is homogeneous, isotropic and asymptotically anti de-Sitter whil…
Holographic Mutual Information for Singular Surfaces
M. Reza Mohammadi Mozaffar, Ali Mollabashi, Farzad Omidi
We study corner contributions to holographic mutual information for entangling regions composed of a set of disjoint sectors of a single infinite circle in three-dimensional confor…
On the Entanglement Between Interacting Scalar Field Theories
M. Reza Mohammadi Mozaffar, Ali Mollabashi
We study "field space entanglement" in certain quantum field theories consisting of N number of free scalar fields interacting with each other via kinetic mixing terms. We present…