Results 11 to 20 of about 198,877 (319)
Analytic Continuation with Padé Decomposition [PDF]
Chinese Physics Letters, 2017 The ill-posed analytic continuation problem for Green's functions or self-energies can be done using the Pad rational polynomial approximation. However, to extract accurate results from this approximation, high precision input data of the Matsubara Green's function are needed.
Han, Xing-Jie +5 more
openaire +3 more sources
Tachyons in de Sitter space and analytical continuation from dS/CFT to AdS/CFT [PDF]
, 2002 We discuss analytic continuation from d-dimensional Lorentzian de Sitter (dS$_d$) to d-dimensional Lorentzian anti-de Sitter (AdS$_{d}$) spacetime. We show that AdS$_{d}$, with opposite signature of the metric, can be obtained as analytic continuation of
Allen B. +16 more
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On the analytic continuation of Euler products
Lietuvos Matematikos Rinkinys, 2000 There is not abstract.
Eugenijus Stankus
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Singularity structure of the pi N scattering amplitude in a meson-exchange model up to energies W < 2.0 GeV [PDF]
, 1997 Within the previously developed Dubna-Mainz-Taipei meson-exchange model, the singularity structure of the pi N scattering amplitudes has been investigated. For all partial waves up to F waves and c.m.
Tiator, L. +6 more
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Lattice simulations of the QCD chiral transition at real $\mu_B$
SciPost Physics Proceedings, 2022 Most lattice studies of hot and dense QCD matter rely on extrapolation from zero or imaginary chemical potentials. The ill-posedness of numerical analytic continuation puts severe limitations on the reliability of such methods.
Attila Pasztor, Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano, Sandor D. Katz, Daniel Nogradi, Chik Him Wong
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The QCD phase diagram from analytic continuation
Physics Letters B, 2015 We present the crossover line between the quark gluon plasma and the hadron gas phases for small real chemical potentials. First we determine the effect of imaginary values of the chemical potential on the transition temperature using lattice QCD ...
R. Bellwied +6 more
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A GPU code for analytic continuation through a sampling method
SoftwareX, 2016 We here present a code for performing analytic continuation of fermionic Green’s functions and self-energies as well as bosonic susceptibilities on a graphics processing unit (GPU). The code is based on the sampling method introduced by Mishchenko et al.
Johan Nordström +3 more
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Operator-valued zeta functions and Fourier analysis [PDF]
, 2019 The Riemann zeta function $\zeta(s)$ is defined as the infinite sum $\sum_{n=1}^\infty n^{-s}$, which converges when ${\rm Re}\,s>1$. The Riemann hypothesis asserts that the nontrivial zeros of $\zeta(s)$ lie on the line ${\rm Re}\,s= \frac{1}{2}$. Thus,
Bender, Carl M., Brody, Dorje C
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An analytic continuation of random analytic functions (in Ukrainian) [PDF]
Математичні Студії, 2011 Let $(eta_n(omega))$ be a sequence of independent randomvariables such that $eta_n(omega)$ takes the values $-1$ and$1$ with the probabilities $p_n$ and $1-p_n$, respectively. Put$q_n=min{p_n,1-p_n}$.
P. V. Filevych
doaj
Inclusive B decay calculations with analytic continuation
EPJ Web of Conferences, 2018 First-principle lattice calculation of inclusive B meson semileptonic decays is possible for a certain class of moments that is connected to the structure function at unphysical kinematics by analytic continuation.
Hashimoto Shoji +4 more
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