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CERN Document Server Znaleziono 2,043 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.38 sekund. 
1.
What is the graviton pole made of? / Häring, Kelian (Delta ITP, Amsterdam ; EPFL, Lausanne, FSL ; CERN) ; Zhiboedov, Alexander (CERN)
We explore the physical mechanisms responsible for generating the graviton pole in twice-subtracted dispersion relations, both in flat space and in AdS. [...]
CERN-TH-2024-178 ; arXiv:2410.21499.
- 36.
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Can twice-subtracted f(t) give a large negative?(0) ? / Wong, T P
1974.
3.
Nonperturbative Mellin Amplitudes: Existence, Properties, Applications / Penedones, Joao (EPFL, Lausanne, FSL) ; Silva, Joao A. (EPFL, Lausanne, FSL) ; Zhiboedov, Alexander (CERN)
We argue that nonperturbative CFT correlation functions admit a Mellin amplitude representation. Perturbative Mellin representation readily follows. [...]
arXiv:1912.11100; CERN-TH-2019-230.- 2020-08-06 - 119 p. - Published in : JHEP 2008 (2020) 031 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
4.
Hamiltonian truncation in Anti-de Sitter spacetime / Hogervorst, Matthijs (EPFL, Lausanne, FSL) ; Meineri, Marco (EPFL, Lausanne, FSL ; CERN) ; Penedones, Joao (EPFL, Lausanne, FSL) ; Vaziri, Kamran Salehi (EPFL, Lausanne, FSL)
Quantum Field Theories (QFTs) in Anti-de Sitter (AdS) spacetime are often strongly coupled when the radius of AdS is large, and few methods are available to study them. In this work, we develop a Hamiltonian truncation method to compute the energy spectrum of QFTs in two-dimensional AdS. [...]
arXiv:2104.10689; CERN-TH-2021-065.- 2021-08-16 - 100 p. - Published in : JHEP 2108 (2021) 063 Fulltext: 2104.10689 - PDF; document - PDF;
5.
Gravity from quantum mechanics of finite matrices / Komatsu, Shota (CERN) ; Martina, Adrien (EPFL, Lausanne, FSL) ; Penedones, João (EPFL, Lausanne, FSL) ; Suchel, Noé (EPFL, Lausanne, FSL ; LPENS, Paris) ; Vuignier, Antoine (EPFL, Lausanne, FSL) ; Zhao, Xiang (EPFL, Lausanne, FSL)
We revisit the Berenstein-Maldacena-Nastase (BMN) conjecture relating M-theory on a PP-wave background and Matrix Quantum Mechanics (MQM) of $N\times N$ matrices. [...]
arXiv:2401.16471.
- 70 p.
Fulltext
6.
Gravitational Causality and the Self-Stress of Photons / Bellazzini, Brando (IPhT, Saclay ; CERN) ; Isabella, Giulia (IPhT, Saclay ; IJCLab, Orsay) ; Lewandowski, Matthew (Northwestern U.) ; Sgarlata, Francesco (Cornell U., LEPP)
We study causality in gravitational systems beyond the classical limit. Using on-shell methods, we consider the one-loop corrections from charged particles to the photon energy-momentum tensor - the self-stress - that controls the quantum interaction between two on-shell photons and one off-shell graviton. [...]
arXiv:2108.05896.- 2022-05-24 - 36 p. - Published in : JHEP 2205 (2022) 154 Fulltext: 2108.05896 - PDF; document - PDF;
7.
From data to the analytic S-matrix: A Bootstrap fit of the pion scattering amplitude / Guerrieri, Andrea (CERN ; London, City U. ; Perimeter Inst. Theor. Phys. ; U. Padua (main)) ; Häring, Kelian (CERN ; Amsterdam U. ; EPFL, Lausanne, FSL) ; Su, Ning (Caltech ; MIT)
We propose a novel strategy to fit experimental data using a UV complete amplitude ansatz satisfying the constraints of Analyticity, Crossing, and Unitarity. [...]
CERN-TH-2024-177 ; CALT-TH-2024-038 ; arXiv:2410.23333.
- 11.
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Horava gravity is asymptotically free (in 2+1 dimensions) / Barvinsky, Andrei O. (Lebedev Inst. ; Tomsk State U.) ; Blas, Diego (CERN) ; Herrero-Valea, Mario (EPFL, Lausanne, LPPC) ; Sibiryakov, Sergey M. (CERN ; Ecole Polytechnique, Lausanne ; EPFL, Lausanne, LPPC ; Moscow, INR) ; Steinwachs, Christian F. (Freiburg U.)
We compute the $\beta$-functions of marginal couplings in projectable Ho\v{r}ava gravity in $2+1$ spacetime dimensions. We show that the renormalization group flow has an asymptotically-free fixed point in the ultraviolet (UV), establishing the theory as a UV-complete model with dynamical gravitational degrees of freedom. [...]
arXiv:1706.06809; CERN-TH-2017-100.- 2017-11-20 - 5 p. - Published in : Phys. Rev. Lett. 119 (2017) 211301 Fulltext: arXiv:1706.06809 - PDF; 10.1103_PhysRevLett.119.211301 - PDF;
9.
Einstein gravity from a matrix integral -- Part II / Komatsu, Shota (CERN) ; Martina, Adrien (EPFL-IPEQ, Lausanne) ; Penedones, Joao (EPFL-IPEQ, Lausanne) ; Vuignier, Antoine (EPFL-IPEQ, Lausanne) ; Zhao, Xiang (EPFL-IPEQ, Lausanne ; IPhT, Saclay)
Using supersymmetric localization, we compute the partition function and some protected correlators of the polarized IKKT matrix model. [...]
arXiv:2411.18678.
- 38.
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The LHCb Upgrade / Rakotomiaramanana, B (EPFL, Lausanne, Switzerland)
LHCb-TALK-2013-320.- Geneva : CERN, 2013 - 20 p. Fulltext: PDF;
In : 13th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, Rome, Italy, 30 Sep - 4 Oct 2013

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