Precision metrology on the hydrogen atom in search for new physics

Ubachs, Wim; Vassen, W.; Salumbides, E. J.; Eikema, K.S.E.

doi:10.1002/andp.201300730

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Simple systems to search for extra interactions between lepton and hadrons would be atomic hydrogen or the helium ion [94,95], while extra hadron-hadron interactions can be probed in molecular hydrogen and molecular hydrogen ions. We express a general fifth force in terms of a Yukawa potential V 5 (R) as a function of the distance R between hadrons, or the internuclear distance in molecular hydrogen:…”

Section: Testing Qed and Fifth Forcesmentioning

confidence: 99%

VUV-synchrotron absorption studies of N2 and CO at 900K

Niu

Heays

Jones

et al. 2015

Journal of Molecular Spectroscopy

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Section: Testing Qed and Fifth Forcesmentioning

confidence: 99%

VUV-synchrotron absorption studies of N2 and CO at 900K

Niu

Heays

Jones

et al. 2015

Journal of Molecular Spectroscopy

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“…Energy resonances in calculable few-body systems provide an ideal search ground. Simple systems to search for extra interactions between lepton and hadrons would be atomic hydrogen or the helium ion [94,95], while extra hadron-hadron interactions can be probed in molecular hydrogen and molecular hydrogen ions. We express a general fifth force in terms of a Yukawa potential V 5 (R) as a function of the distance R between hadrons, or the internuclear distance in molecular hydrogen:…”

Section: Testing Qed and Fifth Forcesmentioning

confidence: 99%

Precision spectroscopy of the $X\,^{1}Σ_{g}^{+}, v=0\rightarrow 1$ ($J=0-2$) rovibrational splittings in H$_{2}$, HD and D$_{2}$

Niu,

Salumbides,

Dickenson

et al. 2014

Preprint

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Accurate experimental values for the vibrational ground tone or fundamental vibrational energy splitting of H 2 , HD, and D 2 are presented. Absolute accuracies of 2 × 10 −4 cm −1 are obtained from Doppler-free laser spectroscopy applied in a collisionless environment. The vibrational splitting frequencies are derived from the combination difference between separate electronic excitations from the X 1 Σ + g , v = 0, J and v = 1, J vibrational states to a common EF 1 Σ + g , v = 0, J state. The present work on rotational quantum states J = 1, 2 extends the results reported by Dickenson et al. on J = 0 [Phys. Rev. Lett. 110 (2013) 193601]. The experimental procedures leading to this high accuracy are discussed in detail. A comparison is made with full ab initio calculations encompassing Born-Oppenheimer energies, adiabatic and non-adiabatic corrections, as well as relativistic corrections and QED-contributions. The present agreement between the experimental results and the calculations provides a stringent test on the application of quantum electrodynamics in molecules. Furthermore, the combined experimental-theoretical uncertainty can be interpreted to provide bounds to new interactions beyond the Standard Model of Physics or fifth forces between hadrons.

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“…Bautista et al [33] studied free hydrogen isoelectronic sequence, particularly hydrogenlike oxygen and neon, which are observed in ASCA spectra of low-mass X ray binaries (LMXBs). Consistent and systematic research on such quantum systems emphasizes their importance in the study of atomic processes including metrology [34][35]. Medium atomic number hydrogen-like ions are the perfect testing grounds for quantum electrodynamics (QED) contributions to the energy levels [36].…”

Section: Introductionmentioning

confidence: 99%

Shannon entropy along hydrogen isoelectronic sequence using Numerov method

Joshi,

Verma,

Mohan

2023

Rev. Mex. Fís.

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Shannon entropy (SE) for hydrogen isoelectronic sequence is calculated through numerical simulation. Fast and accurate Numerov method is applied for the computation of the wavefunctions used for the evaluation of Shannon entropy. The reliability of this approach is verified by the excellent comparison with the available literature results. It is observed that Shannon entropy values diminish with an increment in atomic number (Z). Additionally, previously unexplored Shannon entropy behaviour for a variety of higher excited orbitals is investigated. It is found that Shannon entropy exhibits an interesting behavior of increasing and decreasing nature with principal quantum number n and orbital quantum number l, respectively. Benchmark values for Shannon information entropy are established for the ground and excited states as a signature of localization and delocalization of electron density. This will further contribute to the diagnostics of spectroscopic data and atomic system complexity.

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Precision metrology on the hydrogen atom in search for new physics

Cited by 10 publications

References 17 publications

VUV-synchrotron absorption studies of N2 and CO at 900K

VUV-synchrotron absorption studies of N2 and CO at 900K

Precision spectroscopy of the $X\,^{1}Σ_{g}^{+}, v=0\rightarrow 1$ ($J=0-2$) rovibrational splittings in H$_{2}$, HD and D$_{2}$

Shannon entropy along hydrogen isoelectronic sequence using Numerov method

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