Zobrazeno 1 - 10
of 6 604
pro vyhledávání: '"Shaposhnikov AN"'
In this paper, we show how the finite formulation of QFT based on Callan-Symanzik equations can be generalised to the case of non-renormalizable theories. We derive an equation for effective action for an arbitrary single scalar field theory, allowin
Externí odkaz:
http://arxiv.org/abs/2409.15036
Autor:
Mooij, Sander, Shaposhnikov, Mikhail
Publikováno v:
Nuclear Physics B, Volume 1006, September 2024, 116642
In recent works, we have shown how $n$-point correlation functions in perturbative QFT can be computed without running into intermediate divergences. Here we want to illustrate explicitly that one can calculate the quantum effective potential by the
Externí odkaz:
http://arxiv.org/abs/2408.00389
Autor:
Seidov, Timur Z., Barredo-Alamilla, Eduardo, Bobylev, Daniel A., Shaposhnikov, Leon, Mazanov, Maxim, Gorlach, Maxim A.
Effective axion fields in condensed matter and photonics are manifested as $\mathcal{P}$- and $\mathcal{T}$-odd contributions to the electromagnetic response. Here, we show that the phenomena previously attributed to the effective axion fields have t
Externí odkaz:
http://arxiv.org/abs/2407.20767
We show that the minimal Weyl-invariant Einstein-Cartan gravity in combination with the Standard Model of particle physics contains just one extra scalar degree of freedom (in addition to the graviton and the Standard Model fields) with the propertie
Externí odkaz:
http://arxiv.org/abs/2406.11956
An analysis of high-resolution ($R\sim48\,000$) optical spectrum of hot (B1Ibe) post-AGB star LS 4331 (IRAS 17381-1616) is presented. The detailed identification of the observed absorption and emission features in the wavelength range 3700-9200 \r{A}
Externí odkaz:
http://arxiv.org/abs/2406.06240
Spatial structuring of materials at subwavelength scales underlies the concept of metamaterials possessing exotic properties beyond those of the constituent media. Temporal modulation of material parameters enables further functionalities. Here, we s
Externí odkaz:
http://arxiv.org/abs/2405.19160
Autor:
Gorbatovski, Alexey, Shaposhnikov, Boris, Malakhov, Alexey, Surnachev, Nikita, Aksenov, Yaroslav, Maksimov, Ian, Balagansky, Nikita, Gavrilov, Daniil
Despite the fact that offline methods for Large Language Models (LLMs) alignment do not require a direct reward model, they remain susceptible to overoptimization. This issue arises when the trained model deviates excessively from the reference polic
Externí odkaz:
http://arxiv.org/abs/2404.09656
We aim at searching for secular evolution of the orbital period in the short-period binary system WR 127 (WN3b+O9.5V, $P = 9.555^d$). We performed new low-resolution spectroscopic observations of WR 127 on 2.5-m CMO SAI telescope to construct the rad
Externí odkaz:
http://arxiv.org/abs/2403.06473
Autor:
Aksenov, Yaroslav, Balagansky, Nikita, Vaina, Sofia Maria Lo Cicero, Shaposhnikov, Boris, Gorbatovski, Alexey, Gavrilov, Daniil
Advancing the frontier of subquadratic architectures for Language Models (LMs) is crucial in the rapidly evolving field of natural language processing. Current innovations, including State Space Models, were initially celebrated for surpassing Transf
Externí odkaz:
http://arxiv.org/abs/2402.10644
Autor:
Shaposhnikov, Mikhail, Zell, Sebastian
We propose a new class of single-field scalar quantum field theories with non-polynomial interactions leading to a two-point Green's function that can be naturally continued beyond the naive cutoff scale. This provides a new prospect for self-complet
Externí odkaz:
http://arxiv.org/abs/2312.13359