Results 61 to 70 of about 3,032,855 (327)

On the Analytic Continuation of Lauricella–Saran Hypergeometric Function F_K(a₁,a₂,b₁,b₂;a₁,b₂,c₃;z)

Mathematics, 2023
The paper establishes an analytical extension of two ratios of Lauricella–Saran hypergeometric functions FK with some parameter values to the corresponding branched continued fractions in their domain of convergence.
Tamara Antonova, Roman Dmytryshyn, Vitaliy Goran   +2 more
doaj   +1 more source

Janus interface in two-dimensional supersymmetric gauge theories

Journal of High Energy Physics, 2019
We study the Janus interface, a domain wall characterized by spatially varying couplings, in two-dimensional N $$ \mathcal{N} $$ = (2, 2) supersymmetric gauge theories on the two-sphere.
Kanato Goto, Takuya Okuda
doaj   +1 more source

Analytic Continuation of the Hurwitz Transform

Mathematics
An integral over the unit interval of the product of a given function and the Hurwitz zeta function is known as the Hurwitz transform of the function. We give sufficient conditions on the function for the Hurwitz transform to continue meromorphically to ...
Namhoon Kim
doaj   +1 more source

Open strings on the Rindler horizon

Journal of High Energy Physics, 2019
It has been proposed that a certain ℤ N orbifold, analytically continued in N, can be used to describe the thermodynamics of Rindler space in string theory. In this paper, we attempt to implement this idea for the open-string sector. The most interesting
Edward Witten
doaj   +1 more source

Quantum creation of traversable wormholes ex nihilo in Gauss–Bonnet-dilaton gravity

European Physical Journal C: Particles and Fields, 2019
We investigate a nucleation of a Euclidean wormhole and its analytic continuation to Lorentzian signatures in Gauss–Bonnet-dilaton gravity, where this model can be embedded by the type-II superstring theory. We show that there exists a Euclidean wormhole
Gansukh Tumurtushaa, Dong-han Yeom
doaj   +1 more source

Analytic continuation via domain knowledge free machine learning [PDF]

Physical review B, 2018
We present a machine-learning approach to a long-standing issue in quantum many-body physics, namely, analytic continuation. This notorious ill-conditioned problem of obtaining spectral function from an imaginary time Green's function has been a focus of
H. Yoon, Jae-Hoon Sim, M. Han
semanticscholar   +1 more source

TRIQS/SOM: Implementation of the stochastic optimization method for analytic continuation [PDF]

Computer Physics Communications, 2018
We present the TRIQS / SOM analytic continuation package, an efficient implementation of the Stochastic Optimization Method proposed by Mishchenko et al. (2000). TRIQS / SOM strives to provide a high quality open source (distributed under the GNU General
I. Krivenko, M. Harland
semanticscholar   +1 more source

Nevanlinna analytic continuation for Migdal–Eliashberg theory

Computational Materials Today
In this work, we present a method to reconstruct real-frequency properties from analytically continued causal Green’s functions within the framework of Migdal–Eliashberg (ME) theory for superconductivity.
D.M. Khodachenko, R. Lucrezi, P.N. Ferreira, M. Aichhorn, C. Heil   +4 more
doaj   +1 more source

Zeta function and some of its properties [PDF]

Vojnotehnički Glasnik, 2020
Introduction/purpose: Some properties of the zeta function will be shown as well as its applications in calculus, in particular the “golden nugget formula” for the value of the infinite sum 1 + 2 + 3 + · · · . Some applications in physics will also be
Nicola Fabiano
doaj   +1 more source

Maximum entropy formalism for the analytic continuation of matrix-valued Green's functions [PDF]

, 2017
We present a generalization of the maximum entropy method to the analytic continuation of matrix-valued Green's functions. To treat off-diagonal elements correctly based on Bayesian probability theory, the entropy term has to be extended for spectral ...
Gernot J. Kraberger, Robert Triebl, M. Zingl, M. Aichhorn   +3 more
semanticscholar   +1 more source