Interferometric measurements of the dipole polarizability α of molecules between 300 K and 1100 K

Hohm, Uwe; Kerl, K.

doi:10.1080/00268979000100621

Cited by 59 publications

(38 citation statements)

References 25 publications

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“…The most precise measured value of this quantity is reported as 27.815(27) ea 3 0 [26]. In Table I, we present the calculated α, η and ζ values along with the experimental and previously reported results.…”

Section: Pacs Numbersmentioning

confidence: 83%

“…To this end, we have developed many-body methods in the framework of the third order many-body perturbation theory (MBPT(3)) for a better understanding of the different classes of correlation effects, the coupledperturbed-Hartree-Fock (CPHF) method in order to reproduce the previously reported results and the relativistic coupled-cluster (RCC) theory to bring to light the (27) [ 26] roles of both the CPHF and non-CPHF contributions (e.g. pair-correlation effects) to all orders in the residual Coulomb interaction (difference between the exact twobody Coulomb and the mean-field interactions).…”

Section: Pacs Numbersmentioning

confidence: 99%

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The relativistic Lagrangian: Nucleon-nucleon potential

Sahu¹,

Singh²,

Bhuyan³

et al. 2013

AIP Conference Proceedings

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The parity (P) and time-reversal (T) odd coupling constant associated with the tensorpseudotensor (T-PT) electron-nucleus interaction and the nuclear Schiff moment (NSM) have been determined by combining the result of the measurement of the electric dipole moment (EDM) of 129 Xe atom and calculations based on the relativistic coupled-cluster (RCC) theory. Calculations using various relativistic many-body methods have been performed at different levels of approximation and their accuracies are estimated by comparing the results of the calculated dipole polarizability of the ground state of the above atom with its most precise available experimental data. The nonlinear terms that arise in the RCC theory at the singles and doubles approximation were found to be crucial for achieving high accuracy in the calculations. Our results for the 129 Xe EDM due to the odd T-PT interaction and the NSM are, respectively, dA = 0.501 × 10 −20 CT σN |e|cm and dA = 0.336 × 10 −17 S |e| f m 3 |e|cm. These results in combination with the future EDM measurements in atomic Xe could provide the most accurate limits for the T-PT coupling constant and NSM. PACS numbers:The search for the electric dipole moment (EDM) is now in its seventh decade [1,2]. The observation of an EDM of an elementary particle or a composite system would be an unambiguous signature of the violations of parity (P) and time-reversal (T) symmetries. T violation implies charge conjugation-parity (CP) violation via the CPT theorem [3]. The standard model (SM) of elementary particle physics provides explanations of the experimentally observed hadronic CP violation in the decays of neutral K [4] and B [5][6][7] mesons, but the amount of CP violation predicted by the SM is not sufficient to account for the matter-antimatter asymmetry in the Universe [8]. The current limits for CP violating coupling constants deduced from the atomic EDMs are several orders of magnitude higher than the predictions of these quantities by the SM [9][10][11]. In addition, atomic EDMs can probe CP violation originating from leptonic, semileptonic and hadronic CP sources. Combining atomic EDM measurements with high precision many-body calculations, it is possible to obtain various CP violating coupling constants at the levels of the nucleus and the electron. Newly proposed EDM experiments on diamagnetic and paramagnetic atoms hold the promise of improving the sensitivity of the current measurements by at least a few orders of magnitude [12][13][14][15][16]. The EDMs of diamagnetic atoms arise predominantly from the electron-nucleus tensor-pseudotensor (T-PT) interaction and interaction of electrons with the nuclear Schiff moment (NSM) [17]. The electron-nucleus T-PT interaction is due to the CP violating electron-nucleon interactions which translates to CP violating electron-quark interactions at the level of elementary particles. The NSM on the other hand could exist due to CP violat- * bijaya@prl.res.in ing nucleon-nucleon interactions and the EDM of nucleons and both of them in turn could o...

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Section: Pacs Numbersmentioning

confidence: 83%

Section: Pacs Numbersmentioning

confidence: 99%

The relativistic Lagrangian: Nucleon-nucleon potential

Sahu¹,

Singh²,

Bhuyan³

et al. 2013

AIP Conference Proceedings

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“…As is well known, a critical part in calculating B R is the correct evaluation of the quantum-mechanicalterm / ov in (6). In many cases [15,[17][18][19][20] it can be approximated by…”

Section: Modelling Of B R (Co T)mentioning

confidence: 99%

“…Perhaps, on the basis of these estimates, some species like Xe or SF 6 will be selected for a more detailed and precise experimental study of the temperature-and frequency-dependence of the second refractivity virial coefficient B R (co, T). …”

Section: The Frequency-dependence Of B R (Co T)mentioning

confidence: 99%

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Frequency-and Temperature-Dependence of Second Refractivity Virial Coefficients

Hohm

1993

Zeitschrift Für Naturforschung A

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A reasonable heuristic extrapolation of a theory given by Buckingham is used to estimate the frequency-and temperature-dependence of the second refractivity virial coefficient. The calculations are carried out for the atoms He, Ne, Ar, Kr, Xe and the small molecules H 2 , N 2 , 0 2 , HCl, C0 2 , N 2 0, NH 3 , CH 4 , C 2 H 4 , and SF 6 . In some cases the frequency-dependence of B R (co, T) is compared with experimental values, showing sometimes considerable deviations between experiment and the heuristic approach used in this work.

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Hochgenaue Berechnung der Kohäsionsenergie von festem Argon mit Abweichungen im J/mol‐Bereich

et al. 2016

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Wir präsentieren Rechnungen der Kohäsionsenergie von Argon in der kubisch und hexagonal dichtesten Kugelpackung mit einer noch nie zuvor erreichten Genauigkeit im Bereichv on 5Jmol À1 (dies entspricht 0.05 %d er gesamten Kohäsionsenergie). Dieselbe relative Genauigkeit im Vergleich zu experimentellen Daten wurde auch fürd ie Gitterkonstante des flächenzentrierten Gitters mit einer absoluten Abweichung von ungefähr 0.003 erreicht. Die hohe Genauigkeit wurde durch die Verwendung von wellenfunktionsbasierten Methoden im Rahmen einer Mehrkçrperentwicklung der Wechselwirkungsenergie ermçglicht. Statische Beiträge der Zwei-, Drei-und Vierkçrperfragmente des Kristalls,d ie jeweils mit einer Genauigkeit von unter 1Jmol À1 berechnet wurden, wurden durch harmonische und anharmonische Nullpunktschwingungskorrekturen ergänzt. FürE delgas-Festkçrper erreicht die Computerchemie hiermit experimentelle Genauigkeit oder übertrifft diese sogar.Die Identifikationsnummer (ORCID) der Autoren ist unter http://dx.

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Interferometric measurements of the dipole polarizability α of molecules between 300 K and 1100 K

Cited by 59 publications

References 25 publications

The relativistic Lagrangian: Nucleon-nucleon potential

The relativistic Lagrangian: Nucleon-nucleon potential

Frequency-and Temperature-Dependence of Second Refractivity Virial Coefficients

Hochgenaue Berechnung der Kohäsionsenergie von festem Argon mit Abweichungen im J/mol‐Bereich

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