Zobrazeno 1 - 10
of 5 534
pro vyhledávání: '"A. A. Shaposhnikov"'
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
Publikováno v:
Общая реаниматология, Vol 15, Iss 1, Pp 27-38 (2019)
The purpose of the study was to compare the possibility of rapid activation of elderly patients after carotid endarterectomy performed under sevoflurane- or desflurane-based anesthesia. Materials and methods. 67 patients aged 75 to 89 years divided i
Externí odkaz:
https://doaj.org/article/0664f010b05b4f15b8d8fdd1716fccee
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
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
On the example of the exoplanet HD 189733 an influence of stellar activity on the efficiency of the plasma mechanism of radio emission generation of the exoplanet and the properties of this emission are considered. The plasma generation mechanism can
Externí odkaz:
http://arxiv.org/abs/2312.10121
Autor:
Ignatyeva, Daria O., Krichevsky, Denis M., Karki, Dolendra, Kolosvetov, Anton, Zimnyakova, Polina E., Shaposhnikov, Alexander N., Berzhansky, Vladimir N., Levy, Miguel, Chernov, Alexander I., Belotelov, Vladimir I.
We report the first experimental observation of multiple standing spin modes in 3D optomagnonic nanocavity formed by nanometer-sized iron-garnet nanocylinder. We show that launching of standing spin modes is achieved due to a high confinement of the
Externí odkaz:
http://arxiv.org/abs/2310.01974