Results 11 to 20 of about 125,563 (231)
Theory of Resonant Inelastic X-ray Scattering by Collective Magnetic Excitations
Physical Review Letters, 2010 I present a tractable theory for the Resonant Inelastic X-ray Scattering (RIXS) spectral function of magnons. The low-energy transition operator is written as a product of local spin operators times fundamental x-ray absorption spectra.
F. M. F. de Groot +2 more
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Scattering theory of the linear Boltzmann operator
Communications in Mathematical Physics, 1975 In time dependent scattering theory we know three important examples: the wave equation around an obstacle, the Schrodinger and the Dirac equation with a scattering potential. In this paper another example from time dependent linear transport theory is added and considered in full detail.
openaire +4 more sources
Completing the fifth PN precision frontier via the EFT of spinning gravitating objects
Journal of High Energy Physics, 2023 We put forward a broader picture of the effective theory of a spinning particle within the EFT of spinning gravitating objects, through which we derive and establish the new precision frontier at the fifth PN (5PN) order.
Michèle Levi, Zhewei Yin
doaj +1 more source
Goldstone bosons on celestial sphere and conformal soft theorems
Journal of High Energy Physics, 2023 In this paper, we study celestial amplitudes of Goldstone bosons and conformal soft theorems. Motivated by the success of soft bootstrap in momentum space and the important role of the soft limit behavior of tree-level amplitudes, our goal is to extend ...
Karol Kampf +3 more
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Self-adjoint elliptic operators with boundary conditions on not closed hypersurfaces [PDF]
, 2016 The abstract theory of self-adjoint extensions of symmetric operators is used to construct self-adjoint realizations of a second-order elliptic operator on $\mathbb{R}^{n}$ with linear boundary conditions on (a relatively open part of) a compact ...
Mantile, A., Posilicano, A., Sini, M.
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Operators for scattering of particles with spin [PDF]
, 2016 Operators for simulating the scattering of two particles with spin are constructed. Three methods are shown to give the consistent lattice operators for PN, PV, VN and NN scattering, where P, V and N denote pseudoscalar meson, vector meson and nucleon ...
Lang, C. B., Prelovsek, S., Skerbis, U.
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Journal of High Energy Physics, 2021 The positivity bounds, derived from the axiomatic principles of quantum field theory (QFT), constrain the signs of Wilson coefficients and their linear combinations in the Standard Model Effective Field Theory (SMEFT).
Kimiko Yamashita +2 more
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Real-space Hopfield diagonalization of inhomogeneous dispersive media [PDF]
, 2016 We introduce a real-space technique able to extend the standard Hopfield approach commonly used in quantum polaritonics to the case of inhomogeneous lossless materials interacting with the electromagnetic field.
De Liberato, Simone +2 more
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High-energy evolution to three loops
Journal of High Energy Physics, 2018 The Balitsky-Kovchegov equation describes the high-energy growth of gauge theory scattering amplitudes as well as nonlinear saturation effects which stop it.
Simon Caron-Huot, Matti Herranen
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Journal of High Energy Physics, 2020 We study deep inelastic scattering (DIS) of charged leptons from polarised spin-1/2 hadrons in terms of the gauge/gravity duality. We calculate the structure functions related to spin-1/2 fermionic operators of N $$ \mathcal{N} $$ = 4 SYM theory in the ...
David Jorrin +2 more
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