Zobrazeno 1 - 10
of 5 038
pro vyhledávání: '"Vichi, A"'
Autor:
Passerotti, Giulio, Alberello, Alberto, Vichi, Marcello, Bennetts, Luke G., Bailey, James, Toffoli, Alessandro
The size and shape of sea ice floes play a crucial role in influencing ocean-atmosphere energy exchanges, sea ice concentrations, albedo, and wave propagation through ice-covered waters. Despite the availability of diverse image segmentation techniqu
Externí odkaz:
http://arxiv.org/abs/2409.06641
In this work we address partial wave decompositions of thermal one-point functions in conformal field theories on $S^1 \times S^{d-1}$. With the help of Casimir differential equations we develop efficient algorithms to compute the relevant conformal
Externí odkaz:
http://arxiv.org/abs/2408.02747
Autor:
Vichi, Stefano, Asahi, Shigeo, Bietti, Sergio, Tuktamyshev, Artur, Fedorov, Alexey, Kita, Takashi, Sanguinetti, Stefano
Long Wavelenght infrared devices, despite growing interest due to a wide range of applications in commercial, public, and academic sectors, are still struggling to achieve significant improvements over well-established technologies like HgCdTe detect
Externí odkaz:
http://arxiv.org/abs/2407.18302
We initiate a numerical conformal bootstrap study of CFTs with $S_n \ltimes (S_Q)^n$ global symmetry. These include CFTs that can be obtained as coupled replicas of two-dimensional critical Potts models. Particular attention is paid to the special ca
Externí odkaz:
http://arxiv.org/abs/2405.19416
Autor:
Bertucci, Francesco, Henriksson, Johan, McPeak, Brian, Ricossa, Sergio, Riva, Francesco, Vichi, Alessandro
In this paper, we explore positivity bounds for the effective field theory~(EFT) of a single weakly coupled massive vector field. The presence of both mass and spin makes the crossing properties of the amplitudes vastly complicated -- we address this
Externí odkaz:
http://arxiv.org/abs/2402.13327
We continue the investigation of large $N$ QCD from a modern bootstrap perspective, focusing on the mesons. We make the natural spectral assumption that the $2 \to 2$ pion amplitude must contain, above the spin-one rho meson, a massive resonance of s
Externí odkaz:
http://arxiv.org/abs/2312.15013
Dispersion relations let us leverage the analytic structure of scattering amplitudes to derive constraints such as bounds on EFT coefficients. An important input is the large-energy behavior of the amplitude. In this paper, we systematically study ho
Externí odkaz:
http://arxiv.org/abs/2310.06888
Autor:
Toffoli, Alessandro, Alberello, Alberto, Clarke, Hans, Nelli, Filippo, Benetazzo, Alvise, Bergamasco, Filippo, Ntamba, Butteur Ntamba, Vichi, Marcello, Onorato, Miguel
We report direct observations of surface waves from a stereo camera system along with concurrent measurements of wind speed during an expedition across the Southern Ocean in the austral winter aboard South African icebreaker S.A.~Agulhas~II. Records
Externí odkaz:
http://arxiv.org/abs/2310.01841
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-62 (2024)
Abstract In this work we address partial wave decompositions of thermal one-point functions in conformal field theories on S 1 × S d−1. With the help of Casimir differential equations we develop efficient algorithms to compute the relevant conform
Externí odkaz:
https://doaj.org/article/0678cec620024a5d9db439232db6b5c5
Autor:
Francesco Bertucci, Johan Henriksson, Brian McPeak, Sara Ricossa, Francesco Riva, Alessandro Vichi
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-54 (2024)
Abstract In this paper, we explore positivity bounds for the effective field theory (EFT) of a single weakly coupled massive vector field. The presence of both mass and spin makes the crossing properties of the amplitudes vastly complicated — we ad
Externí odkaz:
https://doaj.org/article/08ff9842dd974905a02986fc754cf7d2