Zobrazeno 1 - 10
of 386
pro vyhledávání: '"81T18"'
Autor:
Chevyrev, Ilya, Mirsajjadi, Hora
We show that any non-linear heat equation with scaling critical dimension $-1$ is locally well-posed when its initial condition is taken as the Gaussian free field in fractional dimension $d < 4$. Our results in particular extend the well-posedness r
Externí odkaz:
http://arxiv.org/abs/2410.11638
Autor:
Balduf, Paul-Hermann, Gaiotto, Davide
We provide a direct combinatorial proof of a Feynman graph identity which implies a wide generalization of a formality theorem by Kontsevich. For a Feynman graph $\Gamma$, we associate to each vertex a position $x_v \in \mathbb R$ and to each edge $e
Externí odkaz:
http://arxiv.org/abs/2408.03192
Autor:
Valuyan, M. A.
Publikováno v:
Modern Physics Letters A, Vol. 39, No. 16 (2024) 2450072
Delving into spring-like helical configurations, such as DNA within our cells, motivates physicists to inquire about the effects of such structures in the realm of quantum field theory, specifically unraveling their manifestation of effectiveness in
Externí odkaz:
http://arxiv.org/abs/2406.00299
Publikováno v:
J. High Energ. Phys. 2024, 74 (2024)
Asymptotic observables in quantum field theory beyond the familiar $S$-matrix have recently attracted much interest, for instance in the context of gravity waveforms. Such observables can be understood in terms of Schwinger-Keldysh-type 'amplitudes'
Externí odkaz:
http://arxiv.org/abs/2405.11110
Autor:
Kodani, Hisatoshi, Terashima, Yuji
We give a generalization of Goncharov's Hodge correlator twistor connection. Our generalized version is a connection 1-form with values in a DG Lie algebra of uni-trivalent graphs which may have loops and satisfies some Maurer--Cartan equation. This
Externí odkaz:
http://arxiv.org/abs/2404.09488
Autor:
Balduf, Paul-Hermann, Shaban, Kimia
We present efficient data-driven approaches to predict Feynman periods in $\phi^4$-theory from properties of the underlying Feynman graphs. We find that the numbers of cuts and cycles determines the period to approximately 2% accuracy. Hepp bound and
Externí odkaz:
http://arxiv.org/abs/2403.16217
Autor:
Chen, Thomas, Hott, Michael
Our previous work [37] presented a rigorous derivation of quantum Boltzmann equations near a Bose-Einstein condensate (BEC). Here, we extend it with a complete characterization of the leading order fluctuation dynamics. For this purpose, we correct t
Externí odkaz:
http://arxiv.org/abs/2401.06298
Dynamical equations that are valid in the vicinity of the phase transition into the superconducting state are given. Probable effects of the field of charge carriers' magnetic interactions and the field of temperature fluctuations were taken into acc
Externí odkaz:
http://arxiv.org/abs/2312.01927
We present an enhanced algorithm for exploring mirror symmetry for elliptic curves through the correspondence of algebraic and tropical geometry, focusing on Gromov-Witten invariants of elliptic curves and, in particular, Hurwitz numbers. We present
Externí odkaz:
http://arxiv.org/abs/2311.11381
The commissioning of the high power laser facility Extreme Light Infrastructure - Nuclear Physics (ELI-NP) at Bucharest-Magurele (Romania) allows the in-depth study of nonlinear interactions in Strong Field Quantum Electrodynamics (SF-QED). The prese
Externí odkaz:
http://arxiv.org/abs/2307.09315