Test of Quantum Electrodynamics and mass metrology by high-resolution laser spectroscopy in hydrogen molecules:the molecular ion HD+
Final Report Abstract
In this work, we have demonstrated a signicant improvement in the resolution of spectroscopy of molecular ions in ion traps. We believe that this represents a milestone in the eld. We have used the method to perform the most precise measurement of a particle mass by molecular spectroscopy, to date. We also produced the very important theoretical result that the spectroscopy of the hydrogen molecular ions has the potential to reach the 10^−17 inaccuracy level, which is of interest in the eld of test of constancy of fundamental constants. We achieved state-of-the-art results concerning the frequency stabilization and ultra-narrow linewidth of quantum cascade lasers. One additional outcome is the insight that there are excellent prospects for increasing resolution and accuracy of the rotational spectroscopy further.
Publications
- (2018) Rotational spectroscopy of cold and trapped molecular ions in the Lamb–Dicke regime. Nature Phys (Nature Physics) 14 (6) 555–559
Alighanbari, S.; Hansen, M. G.; Korobov, V. I.; Schiller, S.
(See online at https://doi.org/10.1038/s41567-018-0074-3) - Static Stark effect in the molecular ion HD+, Hyperne Interactions 210, 25 (2012)
D. Bakalov and S. Schiller
(See online at https://doi.org/10.1007/s10751-012-0569-8) - Robust, frequency-stable and accurate mid-IR laser spectrometer based on frequency comb metrology of quantum cascade lasers upconverted in orientation-patterned GaAs, Opt. Express 21, 27043 (2013)
M. Hansen, I. Ernsting, S. Vasilyev, S. Schiller, A. Grisard, E. Lallier, B. Gerard
(See online at https://doi.org/10.1364/OE.21.027043) - A simple method for characterization of the magnetic field in an ion trap using Be+ ions, Europ. Phys. J. D 68, 359 (2014)
J. Shen, A. Borodin, S. Schiller
(See online at https://doi.org/10.1140/epjd/e2014-50360-7) - Simplest molecules as candidates for precise optical clocks, Phys. Rev. Lett. 113, 023004 (2014)
S. Schiller, V. I. Korobov, D. Bakalov
(See online at https://doi.org/10.1103/PhysRevLett.113.023004) - The electric quadrupole moment of molecular hydrogen ions and their potential for a molecular ion clock, Appl. Phys. B 114, 213 (2014) (Special Issue in honor of W. Paul's 100th birthday); Erratum: Appl. Phys. B 116, 777-778 (2014)
D. Bakalov and S. Schiller
(See online at https://dx.doi.org/10.1007/s00340-014-5902-2) - The static and dynamic polarisability, and the Stark and black-body radiation frequency shifts of the molecular hydrogen ions H2+, HD+, and D2+, Phys. Rev. A 89, 052521 (2014)
S. Schiller, D. Bakalov, A. Bekbaev, V. I. Korobov
(See online at https://doi.org/10.1103/PhysRevA.89.052521) - Quantum cascade laser-based mid-IR frequency metrology system with ultra-narrow linewidth and 1 × 10^−13 - level frequency instability, Opt. Lett. 40, 2289 (2015)
Michael G. Hansen, E. Magoulakis, Qun-Feng Chen, Ingo Ernsting, and Stephan Schiller
(See online at https://doi.org/10.1364/OL.40.002289) - Quantum state preparation of homonuclear molecular ions enabled via a cold buffer gas: An ab initio study for the H2+ and the D2+ case, Phys. Rev. A 95, 043411 (2017)
S. Schiller, I. Kortunov, M. Hernández Vera, F. Gianturco, H. da Silva, Jr.
(See online at https://doi.org/10.1103/PhysRevA.95.043411)
