Tootfinder

The Spectral Renormalization Flow Based on the Smooth Feshbach--Schur Map: The Introduction of the Semi-Group Property
Volker Bach, Miguel Ballesteros, Jakob Geisler
https://arxiv.org/abs/2508.07643

The Spectral Renormalization Flow Based on the Smooth Feshbach--Schur Map: The Introduction of the Semi-Group Property
The spectral renormalization method is a powerful mathematical tool that is prominently used in spectral theory in the context of low-energy quantum field theory and its original introduction in [5, 6] constituted a milestone in the field. Inspired by physics, this method is usually called renormalization group, even though it is not a group nor a semigroup (or, more properly, a flow). It was only in 2015 in [1] when a flow (or semigroup) structure was first introduced using an innovative defin…

Dichotomy in Low- and High-energy Band Renormalizations in Trilayer Nickelate $La_{4}Ni_{3}O_{10}$: a Comparison with Cuprates
X. Du, Y. L. Wang, Y. D. Li, Y. T. Cao, M. X. Zhang, C. Y. Pei, J. M. Yang, W. X. Zhao, K. Y. Zhai, Z. K. Liu, Z. W. Li, J. K. Zhao, Z. T. Liu, D. W. Shen, Z. Li, Y. He, Y. L. Chen, Y. P. Qi, H. J. Guo, L. X. Yang
https://

Dichotomy in Low- and High-energy Band Renormalizations in Trilayer Nickelate $La_{4}Ni_{3}O_{10}$: a Comparison with Cuprates
Band renormalizations comprise crucial insights for understanding the intricate roles of electron-boson coupling and electron correlation in emergent phenomena such as superconductivity. In this study, by combining high-resolution angle-resolved photoemission spectroscopy and theoretical calculations, we systematically investigate the electronic structure of the trilayer nickelate superconductor $La_{4}Ni_{3}O_{10}$ at ambient pressure. We reveal a dichotomy in the electronic band renormalizati…

Chaos of charged particles near a renormalized group improved Kerr black hole in an external magnetic field
Junjie Lu, Xin Wu
https://arxiv.org/abs/2510.08954 https://

Chaos of charged particles near a renormalized group improved Kerr black hole in an external magnetic field
In a quantum theory of gravity, a renormalization group improved Kerr metric is obtained from the Kerr metric, where the Newton gravitational constant is modified as a function of the radial distance. The motion of neutral test particles in this metric is integrable. However, the dynamics of charged test particles is nonintegrable when an external asymptotically homogeneous magnetic field exists in the vicinity of the black hole. The transition from regular dynamics to chaotic dynamics is numer…

Wenn man schon den Stier bei den Hörnern packen muss, kann man ja trotzdem aufpassen, ihm dabei nicht wehzutun.

KI-Branche fürchtet größte jemals zugelassene US-Sammelklage zum Copyright
KI-Verbände appellieren an ein US-Berufungsgericht, eine Sammelklage wegen Copyright-Verstößen zu stoppen. Drei Autoren könnten die Industrie ruinieren.

Perturbative renormalization of chiral nuclear forces at subleading order in 3S1-3D1 channel
Rui Peng, Bingwei Long, Fu-Rong Xu
https://arxiv.org/abs/2508.06838 https://

Perturbative renormalization of chiral nuclear forces at subleading order in 3S1-3D1 channel
We investigate renormalization of chiral nuclear forces in the coupled channel of 3S1-3D1 of nucleon-nucleon scattering. The one-pion exchange potential is treated nonperturbatively at leading order while subleading potentials are perturbations. Very much like the uncoupled channel of 3P0 , the singular attraction of one-pion exchange gives rise to the so-called genuine exceptional cutoffs, where artificial correlations between subleading contact operators emerge and they result in ill-defined …

Hybrid renormalization for distribution amplitude of a light baryon in large momentum effective theory
Haoyang Bai, Jun Hua, Xiangdong Ji, Xiangyu Jiang, Jian Liang, Andreas Schafer, Wei Wang, Yibo Yang, Jianhui Zhang, JiaLu Zhang, Muhua Zhang, Qian Zhang
https://arxiv.org/abs/2508.08971

Hybrid renormalization for distribution amplitude of a light baryon in large momentum effective theory
Lightcone distribution amplitudes for a light baryon can be extracted through the simulation of the quasi-distribution amplitudes (quasi-DAs) on the lattice. We implement the hybrid renormalization for the quasi DAs of light baryons. Lattice simulations are performed using $N_f = 2+1$ stout-smeared clover fermions and a tree-level Symanzik-improved gauge action, with three lattice spacings of ${0.105, 0.077, 0.052}$ fm. By analyzing zero-momentum matrix elements for different lattice spacings, …

In-medium similarity renormalization group for a pairing-plus-particle-hole model
L. H. Chen, Y. G. Yao, B. C. He
https://arxiv.org/abs/2508.08595 https://…

In-medium similarity renormalization group for a pairing-plus-particle-hole model
We benchmark two implementations of the in-medium similarity renormalization group (IMSRG) method, IMSRG(2) and IMSRG(2*), for the low-lying states of a pairing-plus-particle-hole model with varying numbers of fermions. In IMSRG(2), all operators are truncated up to the normal-ordered two-body terms, whereas IMSRG(2*) includes an additional term to partially account for higher-body contributions. The results are compared against exact solutions. We find that IMSRG(2*) consistently outperforms I…

The bound orbits and gravitational waveforms of timelike particles around renormalization group improved Kerr black holes
Yong-Zhuang Li, Xiao-Mei Kuang
https://arxiv.org/abs/2509.07333

The bound orbits and gravitational waveforms of timelike particles around renormalization group improved Kerr black holes
In this article, we investigate the bound orbits of the timelike particles and the gravitational waveforms emitted from these orbits around a renormalization group improved Kerr black hole in the framework of the asymptotic safety approach. The running Newton coupling in the metric is characterized by two free quantum parameters $(ω,\,γ)$ arsing from the non-perturbative renormalization group theory and the appropriate cutoff identification, respectively. As expected, the radii of the horizon…

Estimation of deuteron binding energy using Qiskit with renormalization group-based effective interactions
Sreelekshmi Pillai, S. Ramanan, V. Balakrishnan, S. Lakshmibala
https://arxiv.org/abs/2509.08948

Estimation of deuteron binding energy using Qiskit with renormalization group-based effective interactions
We have obtained the binding energy of the deuteron on a quantum simulator using the variational quantum eigensolver (VQE) for renormalization group (RG)-based low-momentum effective interactions. The binding energy has been calculated in the truncated harmonic oscillator (HO) basis, using the Qiskit-Aer simulator in both noise-free and noisy cases. The noise models have been taken from the actual IBM quantum hardware, and the results obtained have been extrapolated to the zero noise limit. It …