78 citations · 410 across the 31 of their papers we have counts for
34 papers
SIMULATeQCD: A simple multi-GPU lattice code for QCD calculations
Lukas Mazur, Dennis Bollweg, David A. Clarke +14
The rise of exascale supercomputers has fueled competition among GPU vendors, driving lattice QCD developers to write code that supports multiple APIs. Moreover, new developments i…
Baryonic states in supersymmetric SU(2) Yang-Mills theory on the lattice
Sajid Ali, Georg Bergner, Camilo Lopez +3
We extend our analysis of bound states in supersymmetric Yang-Mills theory by the consideration of baryonic operators, which are composed of three gluino fields. Th…
Study of charm and beauty in QGP from unquenched lattice QCD
Sajid Ali, Dibyendu Bala, Olaf Kaczmarek +2
We present charmonium and bottomonium correlators and corresponding reconstructed spectral functions from full QCD calculations in the pseudoscalar channel. Correlators are obtaine…
Photon production rate from Transverse-Longitudinal () mesonic correlator on the lattice
Dibyendu Bala, Sajid Ali, Anthony Francis +3
Thermal photons from the QGP provide important information about the interaction among plasma constituents. The photon production rate from a thermally equilibrated system is propo…
Ideals and conjugacy classes in solvable Lie algebras
Sajid Ali, Hassan Azad, Indranil Biswas +1
A constructive procedure is given to determine all ideals of a solvable Lie algebra. This is used in determining algorithmically all conjugacy classes of subalgebras of a given sol…
Estimates for the lightest baryon masses in supersymmetric Yang-Mills theory
Sajid Ali, Georg Bergner, Camilo Lopez +3
supersymmetric Yang-Mills theory describes gluons interacting with gluinos, which are spin- Majorana particles in the adjoint representation of the g…
Continuum extrapolation of Ward identities in supersymmetric SU(3) Yang-Mills theory
Sajid Ali, Georg Bergner, Henning Gerber +4
In supersymmetric Yang-Mills theory, regularised on a space-time lattice, in addition to the breaking by the gluino mass term, supersymmetry is broken explicitly by…
Continuum limit of SU(3) supersymmetric Yang-Mills theory and supersymmetric gauge theories on the lattice
Sajid Ali, Georg Bergner, Henning Gerber +5
We summarize our investigations of several aspects of supersymmetric Yang-Mills (SYM) theory. We present our final results for SU(3) SYM simulated w…
Numerical results for the lightest bound states in supersymmetric SU(3) Yang-Mills theory
Sajid Ali, Georg Bergner, Henning Gerber +4
The physical particles in supersymmetric Yang-Mills theory (SYM) are bound states of gluons and gluinos. We have determined the masses of the lightest bound states in SU(3) $\mathc…
Variational analysis of low-lying states in supersymmetric Yang-Mills theory
Sajid Ali, Georg Bergner, Henning Gerber +5
We have calculated the masses of bound states numerically in N = 1 supersymmetric Yang-Mills theory with gauge group SU(2). Using the suitably optimised variational method with an…
Baryonic states in supersymmetric Yang-Mills theory
Sajid Ali, Georg Bergner, Henning Gerber +5
In =1 supersymmetric Yang-Mills theory the superpartner of the gluon is the gluino, which is a spin 1/2 Majorana particle in the adjoint representation of the gauge gr…
On Computing Linearizing Coordinates From Symmetry Algebra
Sajid Ali, Hassan Azad, Said Waqas Shah +1
A characterization of the symmetry algebra of the th order ordinary differential equations (ODEs) with maximal symmetry and all third order linearizable ODEs is given. This is u…
A constructive method for decomposing real representations
Sajid Ali, Hassan Azad, Indranil Biswas +1
A constructive method for decomposing finite dimensional representations of semisimple real Lie algebras is developed. The method is illustrated by an example. We also discuss an i…
Analysis of Ward identities in supersymmetric Yang-Mills theory
Sajid Ali, Georg Bergner, Henning Gerber +4
In numerical investigations of supersymmetric Yang-Mills theory on a lattice, the supersymmetric Ward identities are valuable for finding the critical value of the hopping paramete…
The light bound states of supersymmetric SU(3) Yang-Mills theory on the lattice
Sajid Ali, Georg Bergner, Henning Gerber +5
In this article we summarise our results from numerical simulations of supersymmetric Yang-Mills theory with gauge group SU(3). We use the formulation of Curci and…
Ward identities in supersymmetric SU(3) Yang-Mills theory on the lattice
Sajid Ali, Georg Bergner, Henning Gerber +5
The introduction of a space-time lattice as a regulator of field theories breaks symmetries associated with continuous space-time, i.e.\ Poincar{é} invariance and supersymmetry. A…
Supermultiplets in N=1 SUSY SU(2) Yang-Mills Theory
Sajid Ali, Georg Bergner, Henning Gerber +6
We study supersymmetric Yang-Mills theory (SYM) on the lattice. The non-perturbative nature of supersymmetric field theories is still largely unknown. Similarly to…
Improved results for the mass spectrum of N=1 supersymmetric SU(3) Yang-Mills theory
Sajid Ali, Georg Bergner, Henning Gerber +6
This talk summarizes the results of the DESY-Münster collaboration for supersymmetric Yang-Mills theory with the gauge group SU(3). It is an updated status report w…
Simulations of N=1 supersymmetric Yang-Mills theory with three colours
Sajid Ali, Georg Bergner, Henning Gerber +4
We report on our recent results regarding numerical simulations of the four dimensional, N=1 Supersymmetric Yang-Mills theory with SU(3) gauge symmetry and light dynamical gluinos.
Embedding algorithms and applications to differential equations
Sajid Ali, Hassan Azad, Indranil Biswas +2
Algorithms for embedding certain types of nilpotent subalgebras in maximal subalgebras of the same type are developed, using methods of real algebraic groups. These algorithms are…
Marginally Stable Circular Orbits in Schwarzschild Black Hole Surrounded by Quintessence Matter
Ibrar Hussain, Sajid Ali
Marginally stable circular orbits (MSCOs) of a massive test particle are investigated in the spacetime geometry of Schwarzschild black hole surrounded by quintessence. For that mat…
A study of positive energy condition in Bianchi V spacetimes via Noether symmetries
Sajid Ali, Ibrar Hussain
In this paper we use Noether symmetries of the geodesic Lagrangian in Bianchi V spacetimes to study various cosmological solutions of Einstein's field equations. Our first result i…
Revisiting Noether gauge symmetry approach in quintom cosmology
Sajid Ali
The Noether gauge symmetry approach is revisited to study various quintom scenarios (those that arise by the presence of two dynamical scalar fields) to comprehend the role of dark…
Linearization from complex Lie point transformations
Sajid Ali, Muhammad Safdar, Asghar Qadir
Complex Lie point transformations are used to linearize a class of systems of second order ordinary differential equations (ODEs) which have Lie algebras of maximum dimension ,…