# Browse Abstracts & Presentations - 2021 International Symposium on Molecular Spectroscopy by Subject "Mini-symposium: Precision Spectroscopy for Fundamental Physics"

• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Precision spectroscopy of fundamental bands of molecules in the mid-infrared (MIR) region is of great interest in applications of trace detection and testing fundamental physics, where high-power and narrow-linewidth MIR ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
We describe a laser spectroscopic study of ytterbium monomethoxide, a species of interest to search for time-reversal symmetry violation using laser-cooled molecules. We have performed measurements of vibrational structure ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Highly excited rovibrational states of H$_2$ in the X $^{1}\Sigma_{g}^{+}$ electronic ground state are prepared by two-photon photolysis of H$_2$S [1]. The highest vibrational levels $v=14, J=0-4$, with a dissociation ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
We have carried out infrared-infrared double-resonance spectroscopy of the 2\nub{3} A$_{1}$ - \nub{3} band of methane. The \nub{3} band transitions are pumped using a 90.5 THz difference-frequency-generation (DFG) source ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Precise measurements of vibrational transition frequencies in the isotopes of molecular hydrogen can provide a sensitive probe of fundamental physics. Because these transitions can be predicted with high-level {\it ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
The hydrogen molecule is an important system for the development of molecular quantum mechanics. In particular, the dissociation energy is a benchmark quantity for ab initio calculations. Latest calculations including ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Few-electron molecules are attractive systems for precision spectroscopy because their properties can be calculated with high accuracy by quantum-chemical methods (1-5). The measurements serve to test theoretical predictions, ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Pure quantum states of charged molecules can now be prepared, coherently manipulated, and efficiently detected in high-resolution spectroscopy experiments by employing quantum-logic spectroscopy, an action spectroscopy at ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Considering the great potential for investigations of $T,P$-violating effects on HfF$^+$ ions [1], it was proposed in Ref. [2] to use $^{177}$Hf$^{19}$F$^+$ and $^{179}$Hf$^{19}$F$^+$ ions to measure nuclear magnetic ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
The fact that the universe is made entirely out of matter, and contains no free anti-matter, has no physical explanation. The unknown process that created matter in the universe must violate a number of fundamental ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Although numerous doubly positively charged diatomic molecules (diatomic dications) are known from investigations using mass spectrometry and \emph{ab-initio} quantum chemistry, only three of them, NO$^{2+}$, N$_2^{2+}$ ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Aluminum monofluoride (AlF) is an excellent candidate for laser cooling.\footnote{Truppe et al., Physical Review A 100, 052513 (2019)} All Q-lines of the strong A$^1\Pi$ $\leftarrow$ X$^1\Sigma^+$ transition are rotationally ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Aluminum monofluoride (AlF) is an excellent candidate for laser cooling on any Q-line of the A$^1\Pi$~-~X$^1\Sigma$ transition and trapping at high densities.\footnote{Truppe et al., Phys. Rev. A 100, 052513 (2019)}\\ In ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Molecules containing heavy and octupole deformed radioactive nuclei are predicted to provide enhanced sensitivity to investigate the violation of fundamental symmetries and to search for physics beyond the Standard Model ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Cooling atoms to the ultracold regime has allowed for studies of physics, ranging from many-body physics of quantum degenerate gases, quantum computing, precision measurements and tests of fundamental symmetries. Extending ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Molecular hydrogen has evolved into a benchmark quantum test system as highly accurate measurements can challenge the most accurate theoretical calculations, which allows for various tests of fundamental physics. Especially ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
The molecular ion TaO$^+$ is a promising candidate to explore new physics beyond the Standard Model in both the leptonic and hadronic sectors via precision measurements of the electron's Electric Dipole Moment (eEDM) and ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Studying the effects of spatial parity (P) nonconservation of fundamental interactions in atoms and molecules, it is possible to refine the parameters of the standard model in laboratory conditions, as well as to set ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Heavy diatomic molecules are currently considered to be among the most sensitive systems used in the search for the eEDM and in probing of the Standard Model of particle physics. In certain molecules effects resulting from ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Molecular spectroscopy is one of the leading tools to search for the manifestation of New Physics. It can also provide accurate information about the nucleus properties, such as its magnetic moment. The existence of ...

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