Abstract We consider the quasinormal modes, quasibound states and superradiant instability of a rotating hairy black hole, which possesses Horndeski hair as deviation from Kerr under perturbation massive scalar field. With use matrix method, we mainly calculate eigenfrequencies related to those modes perturbation. Under massless field, spin parameter have significant influences on frequency, but its imaginary part is always finite negative no unstable mode found. focus find positive,...

Abstract In this paper, we study the propagations of external fields in a specific black hole solution Horndeski theory, including scalar field, electromagnetic field and Dirac field. We extensively explore quasinormal frequencies, time evolution, greybody factors emission rates those massless perturbing by solving corresponding master equations hairy hole. With use both numerical analytical methods, disclose competitive/promotional influences hair, spin quantum momentum number on phenomenal...

Abstract During the binary black hole coalescence, gravitational waves emitted at ringdown stage can be well described by perturbation theory, where quasinormal modes (QNMs) become important ingredient in modeling pattern waveform. In general relativity (GR), QNMs obtained from solving Regge–Wheeler (RW) equation of a non-rotating hole. While Horndeski gravity, isospectrality between odd and even parity perturbations is broken due to scalar field, simplified into modified RW perturbed...

Convolutional Neural Networks (CNNs) have found widespread applications in artificial intelligence fields such as computer vision and edge computing. However, input data dimensionality convolutional model depth continue to increase, deploying CNNs on embedded devices faces significant challenges, including high computational demands, excessive hardware resource consumption, prolonged computation times. In contrast, the Decomposable Winograd Method (DWM), which decomposes large-size or...

In the present paper, we investigate time-resolved transient absorption spectroscopy of doubly excited states helium atoms by solving time-dependent two-electron Schr\"odinger equation numerically based on a one-dimensional model. The are subjected to an extreme ultraviolet (XUV) attosecond pulse and time-delayed infrared (IR) few-cycle laser pulse. A superposition populated XUV is identified, which interferes with direct ionization pathway leading Fano resonance profiles in photoabsorption...

A hairy Schwarzschild black hole describes the deformation of with an exponent correction due to introducing additional sources. Inspired by novel feature that can have double photon spheres for certain parameters space, in this paper we study echoes signal a massless scalar field from calculating its time evolution. We mainly analyze how and field's angular momentum affect echo waveform perturbing field. Additionally, roughly evaluate delay echoes. find significant influences on signals.

The glass relics are precious material evidence of the early trade and cultural exchange between East West. To explore differences development China foreign countries, it is extremely important to classify relics. Despite their similar appearances, Chinese contains more lead, while potassium. In view this, this paper proposes a joint Daen-LR, ARIMA-LSTM, MLR machine learning algorithm (JMLA) for analysis identification chemical composition ancient glass. We separate sampling points into two...

Abstract The black hole scalarization in a special Einstein-scalar–Gauss–Bonnet (EsGB) gravity has been widely investigated recent years. Especially, the spontaneous of scalar-free de-Sitter (dS) spacetime possesses interesting features due to existence cosmological horizon. In this work, firstly, we focus on massive scalar field perturbation Schwarzschild dS (SdS) EsGB theory. By analyzing fundamental QNM frequency and time evolution perturbation, figure out unstable/stable regions...

In this paper, we study the quantum geometric effects near locations where classical black hole horizons used to appear in Einstein's theory, within framework of an improved dynamic approach, which internal region a is modeled by Kantowski-Sachs (KS) spacetime and two polymerization parameters are functions phase space variables. Our detailed analysis shows that so strong white effective theory do not exist at all instead replaced transition surfaces, across metric coefficients their...

In recent years, edge intelligence (EI) has emerged, combining computing with AI, and specifically deep learning, to run AI algorithms directly on devices. practical applications, EI faces challenges related computational power, power consumption, size, cost, the primary challenge being trade-off between consumption. This rendered traditional platforms unsustainable, making heterogeneous parallel a crucial pathway for implementing EI. our research, we leveraged Xilinx Zynq 7000 platform,...

In this paper, we propose a fully nonlinear mechanism for obtaining scalarized black holes in Einstein-scalar-Gauss-Bonnet (EsGB) gravity which is beyond the spontaneous scalarization. Introducing three coupling functions $f(\varphi)$ satisfying $f''(0) = 0$, find that Schwarzschild hole linearly stable against scalar perturbation, whereas it unstable perturbation if function includes term higher than $\varphi^6$. For specific choice of $f(\varphi)=\alpha(\varphi^4-\beta\varphi^6)$, obtain...

Customizing diffusion models to generate identity-preserving images from user-provided reference is an intriguing new problem. The prevalent approaches typically require training on extensive domain-specific achieve identity preservation, which lacks flexibility across different use cases. To address this issue, we exploit classifier guidance, a training-free technique that steers using existing classifier, for personalized image generation. Our study shows based recent rectified flow...

In the binary black hole coalescence, gravitational wave emitted at ringdown stage can be well described within perturbation theory, where quasinormal modes (QNMs) become important ingredient in modeling pattern form. general ralativity (GR), QNMs obtained from solving Regge-Wheeler equation static hole, while Horndeski gravity, metric simplified into a modified perturbed action. this paper, we calculate frequencies of odd-parity specific hairy gravity with use matrix method and pseudo...

In recent years, Edge Intelligence (EI) has emerged, combining edge computing with AI, specifically deep learning, to run AI algorithms directly on devices. practical applications, EI faces challenges related computational power, power consumption, size, and cost, the primary challenge being trade-off between consumption. This rendered traditional platforms unsustainable, making heterogeneous parallel a crucial pathway for implementing EI. our research, we leveraged Xilinx Zynq 7000...

In this paper, a Web-based parts library management system - webParts is studied. WebParts allows engineers and designers to search for component information semantically construct digital product design chain according the information. built based on PLIB standard (ISO13584) "tabular layouts of article characteristics technology" (GB/T10091). According standard, dual description method (semantic logical expression level) used express The data dictionary (ISO13584-42) at semantic level....

Matching image feature points is a very fundamental task in computer vision. Unlike the previous approaches that were designed from viewpoint of classification, our study instead employs convolutional neural network (CNN) to estimate transformed spatial distance two features plane. This can not only be used classify match into correct or incorrect, but it also provides additional information about equality match. To evaluate performance proposed CNN, we have generated large dataset for...

In this paper, we study the propagations of external fields in Horndeski theory, including scalar field, electromagnetic field and Dirac field. We extensively explore quasinormal frequencies, time evolution, greybody factors emission rates those massless perturbing by solving corresponding master equations hairy black hole. With use both numerical analytical methods, disclose competitive/promotional influences hair, spin quantum momentum number on phenomenal physics. Our results show that...

Abstract The scalar-free black hole could be unstable against the scalar field perturbation when it is coupled to a Gauss–Bonnet (GB) invariant in special form. It known that tachyonic instability this scenario triggered by sufficiently strong GB coupling. In paper, we focus on time domain analysis of massive around Schwarzschild de-Sitter Einstein-scalar–Gauss–Bonnet gravity. By analyzing propagation, find will finally grow coupling large enough. This lead background hole. Furthermore,...

We consider the quasinormal modes, quasibound states and superradiant instability of a rotating hairy black hole, which possesses Horndeski hair as deviation from Kerr under perturbation massive scalar field. With use matrix method, we mainly calculate eigenfrequencies related to those modes perturbation. Under massless field, spin parameter have significant influences on frequency, but its imaginary part is always finite negative no unstable mode found. focus find positive, indicating that...

The black hole scalarization in a special Einstein-scalar-Gauss-Bonnet (EsGB) gravity has been widely investigated recent years. Especially, the spontaneous of scalar-free de-Sitter (dS) spacetime possesses interesting features due to existence cosmological horizon. In this work, firstly, we focus on massive scalar field perturbation Schwarzschild dS (SdS) EsGB theory. By analyzing fundamental QNM frequency and time evolution perturbation, figure out unstable/stable regions $(Λ,α)$-plane as...