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of 93 875
pro vyhledávání: '"Excitation Spectra"'
The electronic excitation spectrum of a material characterises the response to external electromagnetic perturbations through its energy loss function (ELF), which is obtained from several experimental sources that usually do not completely agree amo
Externí odkaz:
http://arxiv.org/abs/2410.02370
Autor:
Zafur, Muhammad, Yamase, Hiroyuki
Publikováno v:
Phy. Rev. B 109, 245127 (2024)
Magnetic and bond-charge interactions can arise from the same microscopic interaction. Motivated by this observation, we compute magnetic and bond-charge excitation spectra on an equal footing by introducing a simple effective model on a square latti
Externí odkaz:
http://arxiv.org/abs/2404.02219
Two-dimensional (2D) fluorescence-excitation (2D-FLEX) spectroscopy is a recently proposed nonlinear femtosecond technique for the detection of photoinduced dynamics. The method records a time-resolved fluorescence signal in its excitation- and detec
Externí odkaz:
http://arxiv.org/abs/2406.15262
Autor:
Sugimoto, Koudai
We theoretically investigate the single-particle excitation spectra of a one-dimensional Hubbard model at half-filling using an infinite matrix-product state and elucidate the discretized energy spectra emerging under the influence of a dc electric f
Externí odkaz:
http://arxiv.org/abs/2401.17466
We study the electronic excitation spectra in solid molecular hydrogen (phase I) at ambient temperature and 5-90 GPa pressures using Quantum Monte Carlo methods and Many-Body Perturbation Theory. In this range, the system changes from a wide gap mole
Externí odkaz:
http://arxiv.org/abs/2311.08506
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The triaxial quadrupole collective Hamiltonian, based on relativistic energy density functionals, is extended to include a pairing collective coordinate. In addition to triaxial shape vibrations and rotations, the model describes pairing vibrations a
Externí odkaz:
http://arxiv.org/abs/2312.01791
We present a machine learning (ML) framework for predicting Green's functions of molecular systems, from which photoemission spectra and quasiparticle energies at quantum many-body level can be obtained. Kernel ridge regression is adopted to predict
Externí odkaz:
http://arxiv.org/abs/2310.09911
The excitation spectra of \Lambda_c and \Lambda_b baryons are investigated by using a quark-diquark model in which a single-heavy baryon is treated as the bound state of a heavy quark and a scalar diquark. We take two types of relativistic correction
Externí odkaz:
http://arxiv.org/abs/2308.00970