Results 11 to 20 of about 84,873 (261)
A Rydberg hydrogen beam for studies of stimulated deexcitation [PDF]
EPJ Web of Conferences, 2022 We present a Rydberg hydrogen beamline developed to commission techniques of stimulated deexcitation for application in antihydrogen experiments at CERN’s Antiproton Decelerator.
Wolz Tim +9 more
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Atoms, 2022 Charge-exchange cross sections in Be4+ + H(1s) collisions are calculated using the three-body classical trajectory Monte Carlo method (CTMC) and the quasi-classical trajectory Monte Carlo method of Kirschbaum and Wilets (QCTMC) for impact energies ...
Iman Ziaeian, Károly Tőkési
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A Note About the Ground State of the Hydrogen Molecule [PDF]
Collection of Czechoslovak Chemical Communications, 2007 A trial function is presented for the H2 molecule which provides the most accurate (the lowest) Bohr-Oppenheimer ground state energy among few-parametric trial functions (with ≤14 parameters). It includes the electronic correlation term in the form ~ exp (γr12) where γ is a variational parameter.
Turbiner, A. V., Guevara, N. L.
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On the ground state of the Dirac hydrogen atom under a minimal-length assumption
Results in Physics, 2021 We point out an erroneous handling in the literature regarding corrections to the ground state energy of the Dirac hydrogen atom related to the presence of a minimal length.
Anis Ben Dhahbi
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Structure optimization for parameterized quantum circuits [PDF]
Quantum, 2021 We propose an efficient method for simultaneously optimizing both the structure and parameter values of quantum circuits with only a small computational overhead. Shallow circuits that use structure optimization perform significantly better than circuits
Mateusz Ostaszewski +2 more
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Two Flavors of Hydrogen Atoms: A Possible Explanation of Dark Matter
Atoms, 2020 In one of our previous papers, it was shown that for the ground state of hydrogenic atoms/ions, it is possible to match the interior (inside the nucleus) solution of the Dirac equation with the singular exterior solution of the Dirac equation, so that ...
Eugene Oks
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Probing dark matter axions using the hyperfine structure splitting of hydrogen atoms
Physics Letters B, 2023 QCD axions can be a substantial part of dark matter if their mass ma∼10−5 eV. Since the axions were created by the misalignment mechanism, their local energy spectrum density is large. Consequently, the axion-induced atomic transition rate is enhanced if
Qiaoli Yang, Shiqin Dong
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Electron impact ionization of metastable 2P-state hydrogen atoms in the coplanar geometry
Results in Physics, 2015 Triple differential cross sections (TDCS) for the ionization of metastable 2P-state hydrogen atoms by electrons are calculated for various kinematic conditions in the asymmetric coplanar geometry.
S. Dhar, N. Nahar
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Open Physics, 2016 The time-dependent density functional theory (TDDFT) method was performed to investigate the excited-state intramolecular double proton transfer (ESIDPT) reaction of calix[4]arene (C4A) and the role of the intramolecular hydrogen bonds in the ESIDPT ...
Wang Se, Wang Zhuang, Hao Ce
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Interaction of Be4+ and Ground State Hydrogen Atom—Classical Treatment of the Collision
Atoms, 2020 The interaction between Be4+ and hydrogen atom is studied using the three-body classical trajectory Monte Carlo method (CTMC) and the quasiclassical trajectory Monte Carlo method of Kirschbaum and Wilets (QTMC-KW).
I. Ziaeian, K. Tőkési
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