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Bethe-Salpeter equation for classical gravitational bound states
The Bethe-Salpeter equation is a non-perturbative, relativistic and covariant description of two-body bound states. We derive the classical...
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Abnormal Solutions of Bethe–Salpeter Equation with Massless and Massive Exchanges
We summarize the main properties of the so called “abnormal solutions” of the Wick–Cutkosky model, i.e. two massive scalar particles interacting via...
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To a Solution of the Model Bethe–Salpeter Equation for the Higgs-Boson Scattering Amplitude
To study the Higgs boson decay into a Z 0 -boson pair with large momenta, analytical preparation is performed based on the study of the asymptotic...
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Development of Bethe–Salpeter theory for dealing with unstable system
In the framework of relativistic quantum field theory, the solution of homogeneous Bethe–Salpeter equation for two-body bound state can not describe...
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Bethe–Salpeter kernel and properties of strange-quark mesons
Focusing on the continuum meson bound-state problem, a novel method is used to calculate closed-form Bethe–Salpeter kernels that are symmetry...
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Simulation of Radiation Transfer in Terms of the Bethe–Salpeter Equation for Bilayer Biological Tissue Systems
AbstractThe intensity of radiation backscattering in the near infrared range is calculated for the bilayer model of a strongly heterogeneous medium...
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Mass Spectra and Decay Constants of Heavy-Light Axial Quarkonia in the Framework of Bethe-Salpeter Equation
In this work we calculate the mass spectrum and decay constants of ground and excited states of heavy-light P -wave mesons such as 1 ++ and 1 +− , with...
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Four-quark states with charm quarks in a two-body Bethe–Salpeter approach
We study the internal structure of a range of four-quark states with charm quark contributions using a two-body Bethe–Salpeter equation. Thereby, we...
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Mass spectra of heavy pseudoscalars using instantaneous Bethe–Salpeter equation with different kernels
We solved the instantaneous Bethe–Salpeter equation for heavy pseudoscalars in different kernels, where the kernels are obtained using linear scalar...
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Hermitian separability of BFKL eigenvalue in Bethe–Salpeter approach
We consider the Bethe–Salpeter approach to the BFKL evolution in order to naturally incorporate the property of the Hermitian separability in the...
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Hybrid nature of the abnormal solutions of the Bethe–Salpeter equation in the Wick–Cutkosky model
In the Wick–Cutkosky model, where two scalar massive constituents interact by means of the exchange of a scalar massless particle, the Bethe–Salpeter...
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Mass Spectrum of Pseudo-Scalar Glueballs from a Bethe–Salpeter Approach with the Rainbow–Ladder Truncation
We suggest a framework based on the rainbow approximation to the Dyson–Schwinger and Bethe–Salpeter equations with effective parameters adjusted to...
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Few-Body Systems in Minkowski Space: The Bethe-Salpeter Equation Challenge
Solving the homogeneous Bethe-Salpeter equation directly in Minkowski space is becoming a very alive field, since, in recent years, a new approach...
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The structural, electronic and optic properties in a series of M2XY (M = Ga, In; X,Y = S, Se, Te) Janus monolayer materials based on GW and the Bethe-Salpeter equation
AbstractUtilizing first-principles calculations, we have investigated the structural, electronic, and optic properties of a series of...
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On the Problem of Bound States of Electron and Hole in Transition Metal Dichalcogenides
AbstractThe interacting electron and hole in transition metal dichalcogenides are considered. To investigate the interaction the Bethe-Salpeter...
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