Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Sayan Patra"'
Autor:
null Sushila, Rafia Siddiqui, Sayan Patra, Kumar Shivam, Arnab Sil, Biswajit Guchhait, Haiquan Tian, Ramesh Kataria, Soumyabrata Goswami, Paloth Venugopalan, Ranjan Patra
Publikováno v:
Inorganic chemistry. 61(29)
Five new mononuclear lanthanide complexes, [LnL
Autor:
Rafia Siddiqui, Niharika Sharma, Arnab Chakraborty, Kumar Shivam, Sayan Patra, Jyoti Rani, Swati Dhamija, Monalisa Mukherjee, Hatem M. Titi, Ranjan Patra
Publikováno v:
Chemistry, an Asian journal. 17(17)
In this study, we report the polymorphism of six coordinated Sn(IV)- tetrabromophenyl porphyrins axially armed with fluorine-substituted phenolate ligands (structural formula [Sn(TBrPP)
Autor:
M. Haidar, M. Germann, Wim Ubachs, Kjeld S. E. Eikema, Vladimir I. Korobov, Sayan Patra, F. M. J. Cozijn, Laurent Hilico, Jeroen C. J. Koelemeij, J.-Ph. Karr
Publikováno v:
Science
Patra, S, Germann, M, Karr, J P, Haidar, M, Hilico, L, Korobov, V I, Cozijn, F M J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2020, ' Proton-electron mass ratio from laser spectroscopy of HD + at the part-per-trillion level ', Science (New York, N.Y.), vol. 369, no. 6508, pp. 1238-1241 . https://doi.org/10.1126/science.aba0453
Science (New York, N.Y.), 369(6508), 1238-1241. American Association for the Advancement of Science
Science, 2020, 369 (6508), pp.1238-1241. ⟨10.1126/science.aba0453⟩
Patra, S, Germann, M, Karr, J P, Haidar, M, Hilico, L, Korobov, V I, Cozijn, F M J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2020, ' Proton-electron mass ratio from laser spectroscopy of HD + at the part-per-trillion level ', Science (New York, N.Y.), vol. 369, no. 6508, pp. 1238-1241 . https://doi.org/10.1126/science.aba0453
Science (New York, N.Y.), 369(6508), 1238-1241. American Association for the Advancement of Science
Science, 2020, 369 (6508), pp.1238-1241. ⟨10.1126/science.aba0453⟩
A very precise ratio The value of the ratio of the masses of the proton and the electron has a bearing on the values of other physical constants. This ratio is known to a very high precision. Patra et al. improved this precision even further by measu
Autor:
Sayan Patra, J.-Ph. Karr, M. Germann, Wim Ubachs, K.S.E. Eikema, Vladimir I. Korobov, Jeroen C. J. Koelemeij, Laurent Hilico, Edcel J. Salumbides
Publikováno v:
Physical Review Research
Phys.Rev.Res.
Phys.Rev.Res., 2021, 3 (2), pp.L022028. ⟨10.1103/PhysRevResearch.3.L022028⟩
Physical Review Research, 3(2):L022028, 1-6. American Physiological Society
Physical Review Research, 2021, 3 (2), pp.L022028. ⟨10.1103/PhysRevResearch.3.L022028⟩
Germann, M, Patra, S, Karr, J P, Hilico, L, Korobov, V I, Salumbides, E J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2021, ' Three-body QED test and fifth-force constraint from vibrations and rotations of HD+ ', Physical Review Research, vol. 3, no. 2, L022028, pp. 1-6 . https://doi.org/10.1103/PhysRevResearch.3.L022028
Phys.Rev.Res.
Phys.Rev.Res., 2021, 3 (2), pp.L022028. ⟨10.1103/PhysRevResearch.3.L022028⟩
Physical Review Research, 3(2):L022028, 1-6. American Physiological Society
Physical Review Research, 2021, 3 (2), pp.L022028. ⟨10.1103/PhysRevResearch.3.L022028⟩
Germann, M, Patra, S, Karr, J P, Hilico, L, Korobov, V I, Salumbides, E J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2021, ' Three-body QED test and fifth-force constraint from vibrations and rotations of HD+ ', Physical Review Research, vol. 3, no. 2, L022028, pp. 1-6 . https://doi.org/10.1103/PhysRevResearch.3.L022028
International audience; We present a parts-per-million test of quantum electrodynamics (QED) in the HD+ molecular hydrogen ion, improving on previous tests based on vibrational and rotational transitions by factors of 76 and 1.4, respectively. The te
Publikováno v:
Journal of the American Helicopter Society. 62:1-8
Autor:
Sayan, Patra, M, Germann, J-Ph, Karr, M, Haidar, L, Hilico, V I, Korobov, F M J, Cozijn, K S E, Eikema, W, Ubachs, J C J, Koelemeij
Publikováno v:
Science (New York, N.Y.). 369(6508)
Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted
Autor:
Sayan Patra, M. Germann, J-Ph Karr, Laurent Hilico, Jeroen C. J. Koelemeij, Vladimir I. Korobov
Publikováno v:
Patra, S, Karr, J P, Hilico, L, Germann, M, Korobov, V I & Koelemeij, J C J 2018, ' Proton-electron mass ratio from HD + revisited ', Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 51, no. 2, 024003 . https://doi.org/10.1088/1361-6455/aa9b92
J.Phys.B
J.Phys.B, 2017, 51 (2), pp.024003. ⟨10.1088/1361-6455/aa9b92⟩
Journal of Physics B: Atomic, Molecular and Optical Physics, 51(2):024003. IOP Publishing Ltd.
J.Phys.B, 2018, 51, pp.024003. 〈10.1088/1361-6455/aa9b92〉
J.Phys.B
J.Phys.B, 2017, 51 (2), pp.024003. ⟨10.1088/1361-6455/aa9b92⟩
Journal of Physics B: Atomic, Molecular and Optical Physics, 51(2):024003. IOP Publishing Ltd.
J.Phys.B, 2018, 51, pp.024003. 〈10.1088/1361-6455/aa9b92〉
International audience; We present a new derivation of the proton-electron mass ratio from the hydrogen molecular ion, HD$^+$. The derivation entails the adjustment of the mass ratio in highly precise theory so as to reproduce accurately measured ro-
Autor:
Sayan Patra, Jeroen C. J. Koelemeij
Publikováno v:
Patra, S & Koelemeij, J C J 2017, ' Ghost features in Doppler-broadened spectra of rovibrational transitions in trapped HD + ions ', Journal of Molecular Spectroscopy, vol. 332, pp. 109-116 . https://doi.org/10.1016/j.jms.2016.11.010
Journal of Molecular Spectroscopy, 332, 109-116. Academic Press Inc.
Journal of Molecular Spectroscopy, 332, 109-116. Academic Press Inc.
Doppler broadening plays an important role in laser rovibrational spectroscopy of trapped deuterated molecular hydrogen ions (HD$^+$), even at the millikelvin temperatures achieved through sympathetic cooling by laser-cooled beryllium ions. Recently,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02531df0a5ce296a06daa63fbf339eb5
http://arxiv.org/abs/1608.03130
http://arxiv.org/abs/1608.03130
Autor:
Jeroen C. J. Koelemeij, Sayan Patra, Nicolas Sillitoe, A. Douillet, Laurent Hilico, Jean-Philippe Karr, Johannes Heinrich
Publikováno v:
Karr, J P, Patra, S, Koelemeij, J C J, Heinrich, J, Sillitoe, N, Douillet, A & Hilico, L 2016, ' Hydrogen molecular ions : New schemes for metrology and fundamental physics tests ', Journal of Physics : Conference Series, vol. 723, no. 1, 012048 . https://doi.org/10.1088/1742-6596/723/1/012048
Journal of Physics : Conference Series, 723(1):012048. IOP Publishing Ltd.
Journal of Physics : Conference Series, 723(1):012048. IOP Publishing Ltd.
High-accuracy spectroscopy of hydrogen molecular ions has important applications for the metrology of fundamental constants and tests of fundamental theories. Up to now, the experimental resolution has not surpassed the part-per-billion range. We dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::757ff49e971f8da85b4804d0abbe533c
https://research.vu.nl/en/publications/6f10f0b5-6860-4e84-ba19-755f4fc8b5a5
https://research.vu.nl/en/publications/6f10f0b5-6860-4e84-ba19-755f4fc8b5a5