Zobrazeno 1 - 10
of 1 607
pro vyhledávání: '"Ai, Wen"'
Publikováno v:
Comptes Rendus. Mathématique, Vol 361, Iss G4, Pp 783-793 (2023)
Let $\rho $ be a symmetric measure of Lebesgue type, i.e., \begin{equation*} \rho =\frac{1}{2}(\mu \times \delta _0+\delta _0\times \mu ), \end{equation*} where the component measure $\mu $ is the Lebesgue measure supported on $[t, t+1]$ for $t\in \
Externí odkaz:
https://doaj.org/article/f133b2ad629746fa9870222212e31833
We propose a new mechanism of primordial black hole formation via an aborted phase transition during the early matter-dominated stage of reheating after inflation. In reheating, induced by the decay of a pressureless fluid dominating the Universe at
Externí odkaz:
http://arxiv.org/abs/2409.02175
Heavy vector boson dark matter at the TeV scale or higher may be produced non-thermally in a first-order phase transition taking place at a lower energy scale. While the production of vector dark matter has previously been studied for bubble wall col
Externí odkaz:
http://arxiv.org/abs/2406.20051
Publikováno v:
Phys. Rev. D 110, 065021 (2024)
We study bounce solutions and associated negative modes in the class of piecewise linear triangular-shaped potentials that may be viewed as approximations of smooth potentials. In these simple potentials, the bounce solution and action can be obtaine
Externí odkaz:
http://arxiv.org/abs/2406.02414
Freeze-in via the axion-photon coupling, $g_{\phi\gamma}$, can produce axions in the early Universe. At low reheating temperatures close to the minimum allowed value $T_{\rm reh}\approx T_{\rm BBN}\approx 10\,{\rm MeV}$, the abundance peaks for axion
Externí odkaz:
http://arxiv.org/abs/2406.01678
We discuss matters related to the point that topological quantization in the strong interaction is a consequence of an infinite spacetime volume. Because of the ensuing order of limits, i.e. infinite volume prior to summing over topological sectors,
Externí odkaz:
http://arxiv.org/abs/2404.16026
The central focus of this paper is the $L_p$ dual Minkowski problem for $C$-compatible sets, where $C$ is a pointed closed convex cone in $\mathbb{R}^n$ with nonempty interior. Such a problem deals with the characterization of the $(p, q)$-th dual cu
Externí odkaz:
http://arxiv.org/abs/2404.09804
The role of the QCD theta-parameter is investigated in pure Yang-Mills theory in the spacetime given by the four-dimensional Euclidean torus. While in this setting the introduction of possibly unphysical boundary conditions is avoided, it must be spe
Externí odkaz:
http://arxiv.org/abs/2403.00747
Publikováno v:
JHEP05(2024)099
Assuming a toroidal space with finite volume, we derive analytically the full one-loop vacuum energy for a scalar field tunnelling between two degenerate vacua, taking into account discrete momentum. The Casimir energy is computed for an arbitrary nu
Externí odkaz:
http://arxiv.org/abs/2402.09863
Publikováno v:
JCAP 03 (2024) 037
The B\"{o}deker-Moore thermal friction is usually used to determine whether or not a bubble wall can run away. However, the friction on the wall is not necessarily a monotonous function of the wall velocity and could have a maximum before it reaches
Externí odkaz:
http://arxiv.org/abs/2401.05911