bluuebunny/crossref_metadata_2025_split huggingface dataset:
Material characterization by using T- stub based microstrip patch sensor
Authors: Kaur Swaranpreet , Singh Surinder , Sinha M M 
Published: December 2023

Abstract
In this article, a dual port T-stub based planar sensor is designed with defective ground structure to analyze the properties of lossless dielectric material. The observation is done on the basis of reflection response i.e., S11 and also by analyzing imaginary part (reactive part) of z-parameters (Z11, Z21). This proposed sensor is applicable to sense the relative permittivity in the given range i.e., ϵr =1-12. In this study, the capacitive response of the sensor is analyzed with varying relative permittivity of material under test (MUT). It is found that with increase in the relative permittivity of MUT, the capacitance of the sensor increases and therefore significant shift in frequency is observed.
Cosmological models with variable parameters
Authors: Jain Navya , Dua Heena , Mishra R K 
Published: December 2023

Abstract
The present study deals with the investigation of the Friedmann-Lemaitre-Robertson-Walker models (often FLRW-models) with time varying G and ∧ in the framework of General theory of Relativity. The Einstein field equations have been solved by considering the time-varying deceleration parameter q(t) and Scale factor

α
(
t
)
=

e

β
t

+
(
sinh
β
t

)

1
m

, where m and β are arbitrary constants. We have analysed the value of m, which will generate a transition for universe from early decelerating phase to recent acceleration phase. The physical and graphic behaviour have also been planned to study in this communication.
Comparative studies of α-decay channel from 144Nd* and 148Sm* populated via neutron induced reactions
Authors: Chhetri Rita , Sharma Mahinderpal , Kaur Jagdeep , Kaur Amandeep 
Published: December 2023

Abstract
A comparative study of α-decay channel from the composite systems 144Nd* and 148Sm* populated via n-induced reactions- n+143Nd and n+147Sm, is done at Ebeam=5.0 MeV. The study proceeds through the Dynamical Cluster-decay Model (DCM) as suggested by an experiment performed by Gledenov et al. at Peking University, China. An attempt is made to do a theoretical investigation of decay profiles of 144Nd* and 148Sm* to analyze the effect of temperature, neck-length and angular momentum state of the hot-rotating system at common beam energy. The results are exhibited in the form of variations in fragmentation structure and the barrier modification effects that are illustrated from the barrier penetration profiles. Additionally, a competing analysis of light charge particle emission is done where the cumulative contribution of α-emission towards the decay channel is depicted in contrast to the contribution from other light particles (n, 2n,3n) or light charged particles (3H) for both the decaying systems 144Nd* and 148Sm*.
Visual object detection using audio data
Authors: Chaturvedi Rajnish Kumar , Sahu Dinesh Prasad , Tyagi Manoj Kumar , Diwakar Manoj , Singh Prabhishek , Shankar Achyut , Sathishkumar V E 
Published: December 2023

Abstract
Nowadays Internet of Things (IoT) and Machine Learning (ML) are growing fields. One application of these two fields is object detection, which detects semantic objects using digital images and videos of classes like humans, vehicles, buildings, etc. Visual object detection systems are very effective and accurate due to the appearance information obtained from the cameras. But they face the problem of a limited Field of View. This paper aims to tackle this issue by using audio data to localize the object. A microphone is used to estimate the angular position of the object emitting the sound. Objects currently in the Field of View of a camera are detected and tracked using optical flow, but when they go out of the Field of View, the sound emitted by the object is used by the microphone to calculate the object‘s angular position. Once the angle is calculated, the camera is rotated in that direction. This thus ensures that the object can be located even if it goes out of frame. Once the object is located through IoT devices, we use ML to identify the person‘s face.
Characterization of New Algebras Resembling Colour Algebras based on Split-Octonion units in the Classification of Hadronic Symmetries and Supersymmetries
Authors: Burdik Čestmir , Catto Sultan , Gürcan Yasemin , Khalfan Amish , Nicolescu Bogdan 
Published: December 2023

Abstract
We report on some new algebras we discovered that does not appear in mathematics or physics literature which we briefly name “R” algebras. Together with the real forms we developed for supersting theories shown below and dobbed as “l” algebras, both these new algebras seem to imitate split-octonionic multiplication rules we expose below. We further elaborate on Jordan algebras, magic squares, seven spheres, and supergravity, pointing to the existence of a larger theory with a 27-dimensional lattice and unifying all known superstring theories.
T-duality relations between hyperkähler and bi-hypercomplex structures
Authors: Kimura Tetsuji , Sasaki Shin , Shiozawa Kenta 
Published: December 2023

Abstract
We investigate the T-duality relations between hyperkähler and bi-hypercomplex structures using the doubled formalism. In generalized geometry, both the hyperkähler and bi-hypercomplex structures are embedded in generalized hyperkähler structures that satisfy the split-bi-quaternion algebra. We write down the analogue of the Buscher rule, which is the T-duality transformation of the hyperkähler and bi-hypercomplex structures. As a practical example, we construct the bi-hypercomplex structure of the

5

2

2

-brane, known as a T-fold, from the hyperkähler structure of the Taub-NUT space using the T-duality transformation. The bi-hypercomplex structures of the T-fold have non-trivial monodromies. This results in the fact that the worldsheet instantons on the T-fold are multi-valued. We comment on the resolution of this issue using the Born sigma model.
Transmuted spectrum-generating algebras and detectable parastatistics of the Superconformal Quantum Mechanics
Authors: Toppan Francesco 
Published: December 2023

Abstract
In a recent paper (Balbino-de Freitas-Rana-FT, arXiv:2309.00965) we proved that the supercharges of the supersymmetric quantum mechanics can be statistically transmuted and accommodated into a

Z

2

n

-graded parastatistics. In this talk I derive the 6 = 1 + 2 + 3 transmuted spectrum-generating algebras (whose respective

Z

2

n

gradings are n = 0, 1, 2) of the 𝒩 = 2 Superconformal Quantum Mechanics. These spectrum-generating algebras allow to compute, in the corresponding multiparticle sectors of the de Alfaro-Fubini-Furlan deformed oscillator, the degeneracies of each energy level. The levels induced by the Z
2 × Z
2-graded paraparticles cannot be reproduced by the ordinary bosons/fermions statistics. This implies the theoretical detectability of the Z
2 × Z
2-graded parastatistics.
Quantum geodesic flow on the integer lattice line
Authors: Beggs Edwin , Majid Shahn 
Published: December 2023

Abstract
We use a recent formalism of quantum geodesics in noncommutative geometry to construct geodesic flow on the infinite chain · · · •–•–• · · ·. We find that noncommutative effects due to the discretisation of the line generically cause an initially real geodesic flow amplitude ψ (for which the density is |ψ|2) to become complex. This has been noted also for other quantum geometries and suggests that the complex nature of the wave function in quantum mechanics (and the interference effects that follow) may have its origin in a quantum/discrete nature of spacetime at the Planck scale.
ℤ2 × ℤ2-graded Lie algebras and supseralgebras and related physical models
Authors: Kuznetsova Zhanna , De Souza Lucas Vasconcellos 
Published: December 2023

Abstract
In this paper we construct physical systems with ℤ2×ℤ2-graded symmetries. There are two different structures:ℤ2×ℤ2-graded Lie algebras andℤ2×ℤ2-graded Lie superalgebras. Physical models with the latter symmetries can be seen as generalizations of supersymmetric models. The systems described by ℤ2 × ℤ2-graded Lie algebras have not been investigated yet (up to our knowledge). We present examples of physical models invariant under each one of both kinds of graded structures.
On Yang–Mills fields from anti-de Sitter spaces
Authors: Kumar Kaushlendra 
Published: December 2023

Abstract
Motivated by some recent progress involving a non-compact gauge group, we obtain classical gauge fields using non-compact foliations of anti-de Sitter space in 4 dimensions (required dimensionality for conformal invariance of Yang–Mills theory) and transfer these to Minkowski spacetime using a series of conformal maps. This construction also builds upon some previous works involving SU(2) gauge group in that we now use its non-compact counterpart SU(1, 1) here. We note down gauge fields in both Abelian as well as non-Abelian settings and find them to be divergent at some hyperboloid, which is a hypersurface of co-dimension 1 inside the conformal boundary of AdS4. In spite of this hurdle we find a physically relevant field configuration in the Abelian case, reproducing a known result.
Higher category theory and n-groups as gauge symmetries for quantum gravity
Authors: Nikolić Bojan , Obrić Danijel , Radenković Tijana , Salom Igor , Vojinović Marko 
Published: December 2023

Abstract
Higher category theory can be employed to generalize the notion of a gauge group to the notion of a gauge n-group. This novel algebraic structure is designed to generalize notions of connection, parallel transport and holonomy from curves to manifolds of dimension higher than one. Thus it generalizes the concept of gauge symmetry, giving rise to a topological action called nBF action, living on a corresponding n-principal bundle over a spacetime manifold. Similarly as for the Plebanski action, one can deform the topological nBF action by adding appropriate simplicity constraints, in order to describe the correct dynamics of both gravity and matter fields. Specifically, one can describe the whole Standard Model coupled to gravity as a constrained 3BF or 4BF action. The split of the full action into a topological sector and simplicity constraints sector is adapted to the spinfoam quantization technique, with the aim to construct a full model of quantum gravity with matter. In addition, the properties of the gauge n-group structure open up a possibility of a nontrivial unification of all fields. An n-group naturally contains additional novel gauge groups which specify the spectrum of matter fields present in the theory, in a similar way to the ordinary gauge group that prescribes the spectrum of gauge vector bosons in the Yang-Mills theory. The presence and the properties of these new gauge groups has the potential to explain fermion families, and other structure in the matter spectrum of the theory.
On the solutions of universal differential equation
Authors: Bui V C , Hoang Ngoc Minh V , Ngo Q H , Nguyen D V 
Published: December 2023

Abstract
The objective of this work is to give expressions for solutions of universal differential equation and finally, as application, provides the unique grouplike solution, by dévissage, of Knizhnik-Zamolodchikov equation satisfying asymptotic conditions, i.e. solution of KZn
can be obtained using solution of KZ

n−1 and the noncommutative generating series of hyperlogarithms. These expressions are obtained using the algebraic combinatorics on noncommutative formal series with holomorphic coefficients and a Picard-Vessiot theory of noncommutative differential equations.
Topology of Hawking-Page transition in Born-Infeld AdS black holes
Authors: Yerra Pavan Kumar , Bhamidipati Chandrasekhar , Mukherji Sudipta 
Published: December 2023

Abstract
Black holes in anti de Sitter spacetimes undergo phase transitions which typically lead to the existence of critical points, that can be classified using topological techniques. Availing the Bragg-Williams construction of an off-shell free energy we compute the topological charge of the Hawking-Page (HP) transition for Einstein-Born-Infeld black holes in anti de Sitter (AdS) spacetime and match the result with the confinement-deconfinement transition in the dual gauge theory, which turn out to be in perfect agreement.
Bogoliubov-de Gennes equation on graphs: A model for tree-branched Majorana wire network
Authors: Akramov M. , Askerzade I. , Salati M. , Karpova O. 
Published: December 2023

Abstract
We consider Bogoliubov-de Gennes equation on a metric tree graph. Formulation of the problem for arbitrary graph topology is provided. Self-adjoint vertex boundary conditions are derived. Exact solutions of the problem is obtained for quantum tree graph. A quantum graph based model for tree-branched Majorana wire network is proposed.
Polynomial algebras from commutants: Classical and Quantum aspects of 𝒜3
Authors: Campoamor-Stursberg Rutwig , Latini Danilo , Marquette Ian , Zhang Yao-Zhong 
Published: December 2023

Abstract
We review some aspects of the Racah algebra R(n), including the closure relations, pointing out their role in superintegrability, as well as in the description of the symmetry algebra for several models with coalgebra symmetry. The connection includes the generic model on the (n − 1) sphere. We discuss an algebraic scheme of constructing Hamiltonians, integrals of the motion and symmetry algebras. This scheme reduces to the Racah algebra R(n) and the model on the (n − 1) sphere only for the case of specific differential operator realizations. We review the method, which allows us to obtain the commutant defined in the enveloping algebra of 𝔰𝔩(n) in the classical setting. The related 𝒜3 polynomial algebra is presented for the case 𝔰𝔩(3). An explicit construction of the quantization of the scheme for 𝒜3 by symmetrization of the polynomial and the replacement of the Berezin bracket by commutator and symmetrization of the polynomial relations is presented. We obtain the additional quantum terms. These explicit relations are of interest not only for superintegrability, but also for other applications in mathematical physics.
Coherent states generated by means of supersymmetric quantum mechanics for tilted anisotropic Dirac materials
Authors: O-Campa Daniel , Díaz-Bautista Erik 
Published: December 2023

Abstract
In this paper, we consider the interaction of electrons in tilted anisotropic Dirac materials with external electric and magnetic fields with translational symmetry, for a specific non-null electric field amplitude that allows us to decouple the differential equation system arising in the eigenvalue problem. Then, the eigenstates and eigenvalues for the corresponding Hamiltonian operator can be obtained by means of supersymmetric quantum mechanics. In order to use a semi-classical approach to analyze this system, we find a family of coherent states. Finally, the properties of these states are analyzed through fidelity and the Wigner function.
On parametric generalizations of the Kardar-Parisi-Zhang equation and their integrability
Authors: Prykarpatski Anatolij K. , Bovdi Victor A. , Vovk Myroslava I. , Pukach Petro Ya. 
Published: December 2023

Abstract
There are analyzed two physically reasonable generalizations of the Kardar-Parisi-Zhang equation describing the spin glasses growth models and possessing important from physical point of view properties. The first one proved to be a completely integrable Hamiltonian dynamical system with an infinite hierarchy of commuting to each other conservation laws, and the second one proved to be linearized modulo some nonlinear constraints, imposed on its solutions.
Conserved Restricted Solid-on-Solid Model
Authors: Savu Anamaria 
Published: December 2023

Abstract
We introduce and study a model for the movement of surfaces, namely the conserved, restricted solid-on-solid model. The surface configurations are restricted such that the difference between the heights at adjacent sites is no more than one. In addition, the total number of particles is preserved by the dynamics of the model. Mean-field approximations are used to approximate the one-site probability function of the model in both time-independent and time-dependent regimes. In the time-dependent regime, we found that for the height at one site, the average evolves like t
1/6 and squared fluctuations like t
1/3.
Special matrices used in the analysis of the Boolean quadratic forms
Authors: Hęćka Patrycja 
Published: December 2023

AbstractIn this article we deal with the special matrices used in the analysis of the Boolean quadratic forms. We define basic notation and terminology, like Boolean independence or Boolean cumulants, which are useful to formulate the matrix problem. We check for which matrices appropriately constructed quadratic forms are Boolean independent. We show that the size of the matrix matters in this problem. We present the methods useful to find matrices for which corresponding Boolean quadratic forms are or are not Boolean independent.
Jordan blocks and the Bethe ansatz: The eclectic spin chain as a limit
Authors: Nieto García Juan Miguel 
Published: December 2023

Abstract
We present a procedure to extract generalised eigenvectors of a non-diagonalisable matrix by considering a diagonalisable perturbation and computing the non-diagonalisable limit of its eigenvectors. As an example, we show how to obtain a subset of the spectrum of the eclectic spin chain from the spectrum of a twisted 𝔰𝔲(3) spin chain.
Magnetic properties and entanglement of the octanuclear nickel phosphonate-based cage
Authors: Babujyan H , Burdik Č , Amatuni G , Ananikyan L , Ananikian N 
Published: December 2023

Abstract
The main subject considered in this paper is the quantum magnetic properties and entanglement of an octanuclear nickel phosphonate-based cage. We measured the temperature-dependent magnetic susceptibility of this cage, which indicates the coexistence of both antiferromagnetic and ferromagnetic interactions between the magnetic centers, Ni ions with spin 1. This observation prompted us to theoretically investigate the magnetic properties of such compounds. Our theoretical calculations were compared with the experimental results for magnetic susceptibility. Additionally, we explored the magnetization plateaus and magnetic susceptibility from an external magnetic field at low temperatures. We determined the thermal entanglement (negativity) and the logarithmic negativity for the octanuclear nickel phosphonate-based cage. The observed correlation between magnetization plateau jumps and magnetic susceptibility peaks in relation to the external magnetic field suggests the need for further experimental measurements.
Complex Structures, T-duality and Worldsheet Instantons in Born Sigma Models
Authors: Kimura Tetsuji , Sasaki Shin , Shiozawa Kenta 
Published: December 2023

Abstract
We study generalized (doubled) structures in 2D-dimensional Born geometries in which T-duality symmetry is manifestly realized. We show that spacetime structures of Kähler, hyperkähler, bi-hermitian and bi-hypercomplex manifolds are implemented in Born geometries as generalized (doubled) structures. We find that the Born structures and the generalized Kähler (hyperkähler) structures appear as subalgebras of bi-quaternions ℂ × ℍ and split-tetra-quaternions ℍ × Spℍ. We investigate the nature of T-duality for the worldsheet instantons in Born sigma models. This manuscript is based on the original paper [1].
Generalized integrals and point interactions
Authors: Dereziński Jan , Gaß Christian , Ruba Błażej 
Published: December 2023

AbstractFirst we recall a method of computing scalar products of eigenfunctions of a Sturm-Liouville operator. This method is then applied to Macdonald and Gegenbauer functions, which are eigenfunctions of the Bessel, resp. Gegenbauer operators. The computed scalar products are well defined only for a limited range of parameters. To extend the obtained formulas to a much larger range of parameters, we introduce the concept of a generalized integral. The (standard as well as generalized) integrals of Macdonald and Gegenbauer functions have important applications to operator theory. Macdonald functions can be used to express the integral kernels of the resolvent (Green functions) of the Laplacian on the Euclidean space in any dimension. Similarly, Gegenbauer functions appear in Green functions of the Laplacian on the sphere and the hyperbolic space. In dimensions 1,2,3 one can perturb these Laplacians with a point potential, obtaining a well defined self-adjoint operator. Standard integrals of Macdonald and Gegenbauer functions appear in the formulas for the corresponding Green functions. In higher dimensions the Laplacian perturbed by point potentials does not exist. However, the corresponding Green function can be generalized to any dimension by using generalized integrals.
Structural Design and Obstacle-Crossing Performance Analysis of a Compact Anti-Terrorist Robot
Authors: Chu Yutao , Zhang Zhian 
Published: December 2023

Abstract
In consideration of the risks faced by soldiers during anti-terrorism tasks, a compact anti-terrorism robot has been designed. This robot effectively combines detection and attack capabilities while maintaining a weight limit of 12kg. This paper provides a detailed description of the robot’s structural design and its obstacle-crossing action plan for climbing steps. From a kinematic perspective, it analyzes the relationship between the tracked robot’s structural dimensions and the height of steps. By utilizing Matlab, relationship diagrams are generated to determine the maximum step-climbing height by the tracked robot. Furthermore, Recurdyn software is employed to simulate obstacle crossings performed by this crawler robot in order to validate theoretical analysis through obtaining torque curves during movement. The results demonstrate that both structural dimensions and center-of-mass positioning significantly impact obstacle-crossing performance.
Design and Analysis of Automatic Heat Sealing Production Line for a Top Cover
Authors: Yang Fan , Chen Dongxing , Chen Jiaxiang , Nie Xiangyang 
Published: December 2023

Abstract
To complete the automatic heat sealing and inspection of a battery top cover, a new automatic heat sealing production line is designed in this paper. The production line is used to seal the upper and lower plates of the top cover and to test the related functions. The main purpose of the research is to improve the automation of the sealing and testing for this product. According to the working conditions and requirements of the company, the structure of the entire automatic heat sealing production line was designed through SolidWorks, and the operating principle of the key components were analysed. ANSYS was applied to carry out static analysis and thermal stress coupling analysis on the key components of the gripping and translating mechanism in the device to verify the rationality of its structural design.