bluuebunny/crossref_metadata_2025_split huggingface dataset:
Periodic chirp electron acceleration due to linearly polarized lasers
Authors: Middha K. , Thakur V. , Kant N. , Rajput J. 
Published: December 2023

Abstract
Laser beat wave electron acceleration scheme provides a number of distinct advantages and exciting possibilities in terms of high electron’s energy gain, compact accelerator design, versatility, high repetition rates and fundamental research. In this scheme, two linearly polarized lasers of same amplitude and the frequency have been considered propagating
θ
and −
θ
along the z axis with their electric field components in x and z axis respectively. Peak intensity is observed for resultant electric field at the crossing of both lasers at a focal spot. At this focus, constructive interference occurs and resultant beat wave with lesser phase velocity compared to the speed of light is produced. Electron is injected at an angle of
δ
and trapped by this beat wave and accelerated. In this manuscript, we have applied periodic chirp to the lasers and compared the electron energy with the linear and quadratic chirp. The high energetic electron beam can be utilized to drive compact free-electron lasers, which enable the production of intense and coherent X-ray or gamma-ray radiation for imaging, materials research, and other applications.
Application of terahertz imaging in biological sciences, a review
Authors: Dev A , Mukherjee S 
Published: December 2023

Abstract
THz imaging, also known as terahertz imaging, is a relatively new technology that utilizes the terahertz frequency range of the electromagnetic spectrum to generate images of various materials and biological samples. This technology has promising applications in a wide range of biomedical fields, including cancer detection, imaging of biological tissues, and drug development. THz imaging has also applications in security sector, including explosives detection and as well as detection of concealed weapons. THz TPI imaging technique is relatively new but it has great applications in dentistry. The THz imaging has great potential in revealing cancerous tissue. Several studies have already been done by various scientists using THz imaging in the healthcare sector, specially detecting different types of cancers. THz imaging has some added advantages in comparison to the other types of imaging techniques availlable to the healthcare industry. Overall, this review article aims to provide an overview of the biomedical applications of THz imaging and its potential applications for future advancements in the field of medical sciences.
Cosmological model in f(R, T) theory with time-varying FLVDP
Authors: Sharma Rahul , Chand Avtar , Mishra R K 
Published: December 2023

Abstract
In this communication, we have explored spatially homogeneous, anisotropic Bianchi-II space-time in f(R, T) theory of gravity. Here, we have obtained an explicit solution of the field equations of f(R, T) theory with time dependent fractional linear varying deceleration parameter (FLVDP) i.e. q(t). The accelerating expanding nature of the cosmos has been also discussed under the suitable assumption

q
(
t
)
=

α
(
1
−
t
)

1
+
t

, here α > 0. It is observed that the universe was originated from a singularity in the past and is expanding at an accelerating rate. The FLVDP depicts a transitional phase i.e., early deceleration to the current accelerating phase.
Exploring Isotope Production through 2n-Emission in Reactions Induced by 48Ca: A Theoretical Investigation
Authors: Kaur Jagdeep , Sharma Mahinderpal , Chhetri Rita , Kaur Amandeep 
Published: December 2023

Abstract
In this investigation, we employ the Dynamical Cluster-decay Model (DCM) approach to scrutinize the fragmentation channels emerging from 245Es* and 251Md*. These nuclei are produced through 48Ca+197Au and 48Ca+203Tl reactions with similar beam energies of approximately 210.0 MeV and 212.7 MeV. This methodology involves adjusting the neck formation (ΔR) within the DCM framework to compute 2n-emission cross-sections for these systems. These calculated cross-sections are then juxtaposed against experimental data to validate the predictive capabilities of the model. Furthermore, this study examines the fragmentation dynamics of fragments emerging from 245Es* and 251Md*, investigating its characteristics based on minimized coordinates of the lighter fragment’s mass (A2). This analysis is performed at the most suitable ΔR values, elucidating the energetically favoured decay pathways and the potential presence of magic or near magic shell closures. Moreover, this investigation delves into the preformation and penetration probabilities associated with 2n-emission and their dependence upon the angular momentum values involved. As an extension of this work, a comparative evaluation of 1n-emission from both 245Es* and 251Md* is also carried out in terms of variations in preformation probabilities and penetration probabilities. Notably, these results underscore the necessity for experimental validation of the DCM-predicted 1n-emission data, enhancing the credibility and robustness of the model’s predictions.
Estimation of Radon/Thoron and their progeny concentration in some dwellings and exhalation rates from soils of Samana city, Patiala
Authors: Kapil C , Shikha D , Mehta V 
Published: December 2023

Abstract
The study of indoor pollutants and radioactive nuclides imposes importance on human health as we spend most of our time indoors. Out of all the natural radioactive elements, Radon-222 and Radon220 are present in large abundance indoors. Both are radioactive and decay to various short-lived progenies by emitting high-energy alpha particles, so inhalation of such gases can harm the human body in various ways. In the present report, the concentration of Rn-222 and Rn-220 and its progenies are estimated from some dwellings of Samana city of Patiala district, Punjab. Pin-hole dosimeters with DRPS and DTPS were employed in 15 houses in the study area to measure indoor Rn-222 and Rn-220 concentrations. The concentration of Rn-222 ranges between 401.96 Bq/m3 and 27.36 Bq/m3 with mean value of 138.82 Bq/m3, and the concentration of Rn-220 varies from 222.2 Bq/ m3 to 50 Bq/m3 with the mean weight of 131.12 Bq/m3. The average inhalation dose was also calculated from the results and was found to have an average value of 2.19 mSv per year. The average weight of radon concentration was below the ICRP recommendation of 200-300 Bq/m3 but the value is above these limits at some locations. Radon and thoron emission rates from soil samples near to the dwellings was also calculated.
Tunneling towards efficiency: A survey of design and optimization strategies for tunnel FETs in ultra-low power applications
Authors: Wu Duo 
Published: December 2023

Abstract
The tunnel field-effect transistor (TFET) is a promising technology for low-power applications due to its high performance at reduced voltages through quantum tunneling. This article overviews TFETs and their potential to reduce power consumption in digital circuits, analog circuits, and energy harvesting applications. It highlights the challenges faced in TFET design, including gate electrostatics, source doping, and off-state limitations. The importance of design considerations and material selections is discussed, emphasizing their impact on TFET performance. Various fabrication techniques for TFETs are explored, highlighting their significance in achieving efficient and effective devices. The review concludes by stressing the need for further research and development to address existing challenges and unlock the full potential of TFETs in low-power electronic systems.
Orthopedic patient analysis using machine learning techniques
Authors: Santhiya S , Abinaya N , Jayadharshini P , Priyanka S , Keerthika S , Sharmila C 
Published: December 2023

Abstract
Orthopedic patients have been increasing in hospital because of road traffic accidents, advanced age, a lack of exercise, inadequate nutrition, and other factors. The suggested article uses Machine Learning (ML) techniques to examine the patient reports. The ability to mimic the human actions is called ML. It is a subclass of AI that solves a number of healthcare-related issues. Here ML algorithms are used for health-related data. It solves a number of healthcare-related issues. ML is the process of a machine imitating intelligent human activities. It belongs to the Artificial Intelligence (AI) subclass. ML algorithms are used for medical data such as Logistic Regression, Support vector machine, K-Nearest Neighbor, Random Forest, Decision Tree, Artificial Neural Network to predict orthopedic illnesses such as Normal, Hernia and Spondylolisthesis orthopedic. ML techniques have increased the speed and accuracy for diagnosis. The most serious and urgent cases require rapid care. It improves patient care by lowering human error and stress on medical staff. Our primary objective is to improve machine performance and decrease incorrect categorization.
Source and drain formation in FinFETs
Authors: Zhou Yijia 
Published: December 2023

Abstract
This paper talks about the background and motivation of fin field-effect transistors (FinFETs) to address the short-channel effect and improve the performance of transistors. Also, this paper focuses on the manufacturing formation of source and drain in FinFETs, which is Self-Aligned Double Patterning (SADP) and discusses the challenges faced in fabrication and design, including self-heating effect and body punch-through in FinFET devices. Furthermore, this paper mentions the prospects of vision and design technology. The insight gained from this paper can enhance understanding of some parts of the manufacturing process in FinFETs and help improve fabrication technology.
Analysis of power system load forecasting based on neural networks
Authors: Lang Xuhan 
Published: December 2023

Abstract
In this research, our main goal was to improve power load forecasting accuracy by considering the impact of meteorological factors on the total power of the electrical system, examining existing load data, local weather, wind direction, and other parameters affecting total power load. We divided the data from the past three years into a training dataset, comprising 75% of the data, and a testing dataset with the remaining 25%. We employed a basic machine learning technique (Support Vector Machine) and three distinct neural network approaches (Artificial Neural Network, Convolutional Neural Network, and Long-Short Term Memory Network) to develop analytical models. Through experimentation, the LSTM model achieved a loss value of 0.0034 and required 1426.78 seconds of training time across 100 epochs. Considering the time expense and model complexity, we chose the LSTM model to forecast power load at 15-minute intervals for the subsequent ten days, achieving a satisfactory prediction and fitting outcome. Our results suggest that the LSTM model is a promising method for optimizing performance and reliability in electrical power systems.
Quantum Time
Authors: Góźdź A , Góźdź M , Pȩdrak A 
Published: December 2023

Abstract
A short introduction, with extended interpretations, to the Projection Evolution approach is presented. In this model time is like the other space positions represented by an operator in the state space of a physical system. As a pedagogigal example the Minkowski spacetime is considered. Finally, a short analysis of the time reversal symmetry is presented.
Berezin-type quantization on even-dimensional compact manifolds
Authors: Dey Rukmini , Ghosh Kohinoor 
Published: December 2023

Abstract
In this article we show that a Berezin-type quantization can be achieved on a compact even dimensional manifold M
2d
by removing a skeleton M
0 of lower dimension such that what remains is diffeomorphic to R
2d
(cell decomposition) which we identify with Cd
and embed in CPd
. A local Poisson structure and Berezin-type quantization are induced from CPd
. Thus we have a Hilbert space with a reproducing kernel. The symbols of bounded linear operators on the Hilbert space have a star product which satisfies the correspondence principle outside a set of measure zero. This construction depends on the diffeomorphism. One needs to keep track of the global holonomy and hence the cell decomposition of the manifold. As an example, we illustrate this type of quanitzation of the torus. We exhibit Berezin-Toeplitz quantization of a complex manifold in the same spirit as above.
Einstein Manifold of SO(p,q) with a New Parabolic Subgroup and Invariant Differential Operators
Authors: Dobrev V.K. 
Published: December 2023

Abstract
In the present paper we continue the project of systematic explicit construction of invariant differential operators. On the example of the non-compact group SO(p, 9 − p) (for p = 5, 6) we give the classification multiplets of indecomposable elementary representations induced from a new (relative to earlier considerations) choice of parabolic subgroup MAN so that the factor-group G/M is an Einstein manifold. This classification includes the data for the relevant invariant differential operators.
On the Photon Vertex and Half-Integer Spin
Authors: Dahm R 
Published: December 2023

Abstract
When rewriting the photon vertex of quantum electrodynamics in terms of geometrical quantities, various elements can be mapped directly to objects and properties known from classical projective geometry (PG). Elements of P
5 when mapped to line reps in P
3 exhibit their intrinsic Lorentz invariance associated to automorphisms of the Plücker-Klein quadric

M

4

2

, and line reps when expressed by point or plane coordinates introduce (one-parameter) pencils, or formally gl(2,ℝ), or gl(1,ℍ) which covers su(2)⊕u(1). This introduces binary forms and, using a potential approach of central forces, Schrödinger or Laplace equations and the respective special functions, as well as the projective generation of quadrics like in Dirac’s approach which legitimates Clifford algebra elements as linear factors in invariant theory and the quadratic algebra to represent geometry. Physically, this identification allows for the classical concept of moments in terms of tetrahedrons which on the one hand relates to previous work on SU(4) and SU*(4) in quantum representations. On the other hand, it relates to the classical physical definitions, however, exhibiting a factor 2 between contemporary (euclidean) moments and the tetrahedral construction used in the vertex. Finally, we discuss the equilibrium conditions with respect to gauge and Yang-Mills theories in general as well as the related objects and their transformation theory.
What hide the Hermite coherent states?
Authors: Górska K. , Horzela A. 
Published: December 2023

Abstract
For the single mode the Hermite coherent states are wave packets analogous to the standard harmonic oscillator coherent states but constructed with complex Hermite polynomials substituting traditionally used complex monomials zn
. Hermite coherent states unify the standard coherent and squeezed states within one class of quantum states whose representatives share all properties customarily required from the standard coherent states, in particular (over)completeness. Generalization of the Hermite coherent/squeezed states to the multimode case, illustrated on the bipartite states, shows that such states exhibit entanglement which presence or absence depends on the nature of squeezing but also on the choice of description method being used.
Quantum quantities near the Grothendieck bound in a single quantum system
Authors: Vourdas A. 
Published: December 2023

Abstract
The Grothendieck theorem considers a ‘classical’ quadratic form

C

that uses complex scalars in the unit disc, and the corresponding ‘quantum’ quadratic form

Q

that replaces the scalars with vectors in the unit ball of a Hilbert space. It shows that when

C
≤
1

then

Q

might take values greater than 1, up to the complex Grothendieck constant kG
. Previous work in a quantum context, used Grothendieck’s theorem with multipartite entangled systems, in contrast to the present work which uses it for a single quantum system. The emphasis in the paper is in examples with

Q

∈
(

1
,

k
G

)

, which is a classically forbidden region in the sense that

C

cannot take values in it.
Homological commutation relation of electric and magnetic fluxes
Authors: Tanimura Shogo 
Published: December 2023

Abstract
To give a firm base to argument on quantization of an LC circuit, we derive a commutation relation of electric flux and magnetic flux from quantum electrodynamics. The electric flux is defined by integration of electric field on two-dimensional surface. The magnetic flux is defined by integration of magnetic field surrounded by one-dimensional loop. It is proved that the commutator of the electric flux and the magnetic flux is equal to a crossing number of the loop and the surface. It is also proved that the flux commutator is invariant under gauge transformations and homological deformations. It is also argued that the LC-circuit system can be used as a platform for realizing EPR entanglement.
Instanton size dependence on fermion energy spectra in a ℂP2 fermionic sigma model
Authors: Amari Yuki , Sawado Nobuyuki , Yamamoto Shintaro 
Published: December 2023

Abstract
Spectral flow is a fascinating behavior of fermion’s energy levels that cross zero as a parameter varies. In fermion-soliton system, it owes the topology of the soliton. We examine the spectral flow in a (2 + 1)-dimensional ℂP2 fermionic sigma model. We employ an axisymmetric instanton solution of the ℂP2 non-linear sigma model as a background bosonic field to the Dirac fermion. The explicit form of the solutions contains two parameters concerning the size. We show that some energy levels flow from positive (negative) to negative (positive) as the parameters vary. We propose that the behavior of the energy levels can easily be understood by carefully examining the topological property of the instanton in the entire range of parameters, including the limit of zero and infinity.
Interacting two-mode model for ultracold quantum interferometers
Authors: Baroni Cosetta , Gori Giacomo , Chiofalo Maria Luisa , Trombettoni Andrea 
Published: December 2023

Abstract
Ultracold gases provide an excellent platform for the realization of quantum interferometers. In the case of implementations based on Bose-Einstein condensates in double well potentials, an effective two-mode model allows to study how the interactions among particles affect the sensitivity of the interferometer. In this work we review the properties of such a model and its application to interferometric protocols, focusing on the achievable sensitivity in the presence of interactions turned on. In particular we study the full interferometric sequence when the initial state is a Twin Fock state, which is perfectly number squeezed. We found that in the presence of interactions and for certain values of the holding time in which a phase difference between the two modes is accumulated, the same sensitivity as in the non interacting case is recovered when using the population imbalance between the two wells as observable. Finally, we characterize the behaviour of the sensitivity by looking at the δ-derivative and the variance of the operator used for the measurement and studying the squeezing parameters.
Genuine multipartite entanglement in three-qubit XY Z Heisenberg systems
Authors: Luna-Hernández S 
Published: December 2023

Abstract
Some measures of genuine multipartite entanglement in the three-qubit XYZ Heisenberg model are reported for a system that is embedded in a uniform magnetic field. A quantitative characterization of these measures is accomplished to determine the optimal parameters that provide maximal entanglement.
Quasi-hermitian quantum mechanics and a new class of user-friendly matrix hamiltonians
Authors: Lechtenfeld Olaf , Znojil Miloslav 
Published: December 2023

Abstract
In the conventional Schrödinger’s formulation of quantum mechanics the unitary evolution of a state ψ is controlled, in Hilbert space

L

, by a Hamiltonian ɧ which must be self-adjoint. In the recent, “quasi-Hermitian” reformulation of the theory one replaces ɧ by its isospectral but non-Hermitian avatar H = Ω−1 𝖍Ω with Ω†Ω = Θ ≠ I. Although acting in another, manifestly unphysical Hilbert space

H

, the amended Hamiltonian H ≠ H
† can be perceived as self-adjoint with respect to the amended inner-product metric Θ. In our paper motivated by a generic technical “user-unfriendliness” of the non-Hermiticity of H we introduce and describe a specific new family of Hamiltonians H for which the metrics Θ become available in closed form.
Reductive cohomology associated with vertex algebras
Authors: Zuevsky Alexander 
Published: December 2023

Abstract
We review the notion of the reduction cohomology of vertex algebras. The algebraic conditions leading to the chain property for complexes of vertex operator algebra n-point functions (with their convergence assumed) with a coboundary operator defined through reduction formulas are studied. Algebraic, geometrical, and cohomological meanings of reduction formulas and chain condition are clarified. The reduction cohomology for vertex operator algebras associated to Jacobi forms is computed. A counterpart of the Bott-Segal theorem for Riemann surfaces in terms of the reductions cohomology is proven.
States, observables and symmetries in p-adic quantum mechanics
Authors: Aniello Paolo 
Published: December 2023

Abstract
In the framework of quantum mechanics constructed over a quadratic extension of the field of p-adic numbers, we consider an algebraic definition of physical states. Next, the corresponding observables, whose definition completes the statistical interpretation of the theory, are introduced as SOVMs, a p-adic counterpart of the POVMs associated with a quantum system over the complex numbers. Differently from the standard complex setting, the space of all states of a p-adic quantum system has an affine — rather than convex — structure. Thus, a symmetry transformation may be defined, in a natural way, as a map preserving this affine structure. We argue that the group of all symmetry transformations of a p-adic quantum system has a richer structure wrt the case of standard quantum mechanics over the complex numbers.
Quantum Toda lattice: a challenge for representation theory
Authors: Semenov-Tian-Shansky Michael 
Published: December 2023

Abstract
Quantum Toda lattice may solved by means of the Representation Theory of semisimple Lie groups, or alternatively by using the technique of the Quantum Inverse Scattering Method. A comparison of the two approaches sheds a new light on Representation Theory and leads to a number of challenging questions.
A Cartan tale of the orbifold superstring
Authors: Suszek R R 
Published: December 2023

Abstract
A geometrisation scheme internal to the category of Lie supergroups is discussed for the supersymmetric de Rham cocycles on the super-Minkowski group 𝕋 which determine the standard super-p-brane dynamics with that target, and interpreted within Cartan’s approach to the modelling of orbispaces of group actions by homotopy quotients. The ensuing higher geometric objects are shown to carry a canonical equivariant structure for the action of a discrete subgroup of 𝕋, which results in their descent to the corresponding orbifolds of 𝕋 and in the emergence of a novel class of superfield theories with defects.