arXiv subjects

Salah Eddine Ennadifi

Publications and source records attributed to Salah Eddine Ennadifi.

12 recordsLinked to original sources

arXiv2026

On Hypergraph Representation of Multipartite Quantum Systems

Borrowing ideas from the link between Calabi-Yau singularities and toric geometry in string theory compactifications, a hypergraph framework for multipartite quantum systems, extending graph representations to higher-order quantum correlations, is investigated. By implementing hyperedges in many-body Hamiltonian interactions, an interplay between hypergraph states and quantum state dynamics is established. The corresponding Hamiltonian hypergraph reveals the hierarchy of all possible multipartite interactions. However, the decoherence effects impose constraints on the realization of large hypergraph states. The findings show the importance of long coherence times and strong many-body couplings for the realization of large hypergraph states.

hep-th↗

arXiv2026

On Thermodynamics of Charged Black Holes, Swampland, and Dark Matter

Inspired by the idea that the cosmological constant can be considered as a dynamical quantity, we present a scenario bridging certain swampland conjectures from a new look at thermodynamics of black holes. Dealing with the radial metric function at the horizon as an equation of state, we discuss structural transitions and coexistence curves. By considering an effective potential with a quasi-static scalar field that could find a place in string theory, we then establish a connection between certain swampland conjectures. Relying on Kaluza Klein interpretations of scalar fields, we approach the dark dimension and dark matter through such a thermodynamic approach to charged black holes.

hep-th↗

arXiv2025

On Quark Substructures in an Inspired Unified Model

Motivated by the growing attention devoted to the Quantum Chromodynamics sector of the Standard Model, and the recent observations of non-standard hadronic states, a possible substructure of quarks $q_{f}\equiv C_{ij}|k_{i}k_{j}\rangle $ in terms of four colorless bound particles $% k_{i(=0,\ldots,3)}$ "hyperparticles" is investigated in a $SO(10)$-inspired unified model. This aims to define a subtle structure of matter as well as an explanation of some particularities of quarks. Precisley, these hyperquarks $k_{i}$ are bound by a $SU(3)_{h}$ "hyperstrong force" under which they are assumed to be charged. Exploiting certain known data, the masses and the charges of such fundamental particles are discussed along with the emerged four extra quarks $q_{f}\equiv δ_{ii}|k_{i}k_{i}\rangle $ and three hyperweak bosons $W_{h}$.

hep-ph↗

arXiv2023

DFT Studies of 2D Materials Inspired by Lie Algebras

Inspired by the root systems of Lie algebras of rank 2, we propose a mathematical method to engineer new 2D materials with double periodic structures tessellating the plane. Concretely, we investigate two geometries relaying on squares and hexagons exhibiting D4 D4 and D6 D6 dihedral group invariances, respectively. Due to lack of empirical verifications of such double configurations, we provide a numerical investigation by help of the open source quantum espresso. Motivated by hybrid structures of graphene, silicene, germanene, we investigate two models involving D4 D4 and D6 D6 dihedral symmetries which we refer to as Si4Ge4 and Si6C6 compounds, respectively. For simplicities, we study only the opto-electronic physical properties by applying an electromagnetic source propagating in linear and isotropic mediums. We believe that the Lie algebra inspiration of such 2D material studies, via density functional theory techniques, could open new roads to think about higher dimensional cases by implementing generalized Cartan matrices.

cond-mat.mtrl-sci↗

arXiv2022

Massive Dark Photons as Hot Dark Matter

Motivated by the growing interest in the existence of new massive gauge bosons, we suggest that massive dark photons A0 can be a consequence of a broken new abelian symmetry U(1)'X. Such a dark symmetry U(1)'D is afterwards supposed to be associated with the conservation of the weak number W belonging to the Weakling Interacting Slim Particles U(1)'W, being a strong candidate for Hot Dark Matter. The latters correspond then to light dark photons m'A inf keV from a weak symmetry breaking scale sup 10keV.

hep-ph↗

arXiv2019

2D Material Structures and Discrete Symmetries of Periodic Polygons

In this work, we reconsider the study of 2D materials involving double lattice structures associated with periodic polygons. In tessellated periodic representation, it appears two periodic polygons of $k$ sides of unequal side lengths at certain angles fixed by the underlying discrete symmetries. In this way, 2D materials could be engineered by using two superstructures on the same atomic sheet generated by two length parameters $a_{1}$ and $a_{2}$ and rotated by the angle $ϕ_{n}^{k}=\frac{nπ}{k}$, where $n$ is an arbitrary natural number. These geometrical configurations could be exploited to engineer 2D materials by doubling the number of the ordinary unit cell atoms. To support the present conjecture, we establish a link with Lie symmetries including finite and indefinite ones providing a room interpretation for $n$.

cond-mat.mtrl-sci↗

arXiv2018

Magnetic Monopoles from a Hidden Magnetic Symmetry

It is proposed that Magnetic Monopoles (MMs) could originate from a new $\mbox{U(1)}_{M}$ symmetry. Such an abelian symmetry is then assumed to be related to the conservation of a magnetic number $M$. This magnetic number is associated with massive MMs from an expected high scale breaking of this magnetic symmetry. The involved scales are approached and the properties of such MMs are investigated along with the prospects for their detection.

physics.gen-ph↗

arXiv2018

Probing New Physics From TXS 0506+056 Blazar Neutrinos

Supported by the recent detection of a TXS 0506+056 blazar neutrino with an energy in the TeV-PeV range detected by the IceCube experiment, a probe of a new physics scale LNP related to high-energy cosmic neutrinos is provided. At Standard Model energies, the effect of the underlying physics LNP is first investigated. Then, the recorded IceCube-170922A data is used to approach the scale of such a new physics which lies under the Grand Unified Theory scale 10^25eV.

hep-ph↗

arXiv2017

Quantum Information and Elementary Particles

Motivated by string theory and standard model physics, we discuss the possibility of other particles-based quantum information. A special attention is put on the consideration of the graviton in light of the gravitational wave detection. This may offer a new take in approaching quantum information using messenger particles. The construction is readily extended to higher dimensional qubits where we speculate on possible connections with open and closed string sectors in terms of quiver and graph theories, respectively. In particular, we reveal that the vectorial qubits could be associated with skeleton diagrams considered as extended quivers.

hep-th↗

arXiv2017

D-brane Standard Model-Like and Scalar Dark Matter in Type IIA Superstring Theory

In light of the present LHC Run II at $\sqrt{s}=13$ $TeV$, string y standard-like model is studied. Concretely, a singlet $S $ scalar-extended SM given in terms four stacks of intersecting D6-branes in a type IIA superstring compactification producing a large gauge symmetry is examined. The involved scales are dealt with. According to the dark matter relic density, the mass of the scalar dark matter beyond the SM $m_{S}\lesssim 10^{3}GeV$ and the corresponding Higgs portal couplings $λ_{SH}\lesssim 10^{-8}$ are approached.

hep-th↗

arXiv2015

Axion from Quivers in Type II Superstrings

We investigate a string-inspired axion extension of the standard model obtained from Type II superstrings using quiver method. In the first part, we discuss intersecting Type IIA D6-branes wrapping non trivial 3-cycles in the presence of the Peccei-Quinn symmetry U(1)$_{PQ}$. Concretely, a complex scalar field $ϕ=ρexp(\frac{iσ}{f_σ})$, where $σ$ is a closed string axion generates a general fermion Yukawa coupling weighted by a flavor-dependent power $n_{f}$ taking specific values. Using string theory and standard model data, we find that the corresponding axion window is in the allowed range $10^{9}GeV\leq f_σ\leq 10^{12}GeV $ matching with the recent cosmological results. Then, we extend these results to the case of the hyperbolic quiver whose the moduli is related to the stringy axion using root systems of ADE Lie algebras. For the hyperbolic quiver case, we observe that the closed axion decay constant becomes disentangled from the string scale.

hep-th↗

arXiv2015

Exotic Hadrons and Underlying Z_{2,3} Symmetries

The recent observation of higher quark combinations, tetraquarks and pentaquarks, is a strong indication of more exotic hadrons. Using Z_{2} and Z_{3} symmetries and standard model data, a general quark combination producing new hadronic states is proposed in terms of polygon geometries according to the Dynkin diagrams of \widehat{A}_{n} affine Lie algebras. It has been shown that Z_{\mathbf{2,3}} invariance is crucial in the determination of the mesonic or the baryonic nature of these states. The hexagonal geometry is considered in some details producing both mesonic and baryonic states. A general class of this family is also presented.

hep-ph↗