Results 11 to 20 of about 2,148 (49)

Slalom in complex time: emergence of low-energy structures in tunnel ionization via complex time contours

, 2015
The ionization of atoms by strong, low-frequency fields can generally be described well by assuming that the photoelectron is, after the ionization step, completely at the mercy of the laser field. However, certain phenomena, like the recent discovery of
Ivanov, Misha, Pisanty, Emilio
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Theory of the 2S-2P Lamb shift and 2S hyperfine splitting in muonic hydrogen

, 2012
The 7 standard deviations between the proton rms charge radius from muonic hydrogen and the CODATA-10 value from hydrogen spectroscopy and electron-scattering has caused considerable discussions.
Adamczak, Adamuscin, Adamuscin, Aldo Antognini, Anthony, Antognini, Antognini, Arnoult, Arrington, Barbieri, Barger, Barger, Batell, Bernauer, Biraben, Birse, Blunden, Borie, Borie, Borie, Brax, Brodsky, Carlson, Carlson, Carlson, Carlson, Carroll, Cherednikova, Chu, Cloet, Collins, Danzmann, de Beauvoir, De Rújula, De Rújula, Distler, Eides, Eides, Eides, Eides, Fischer, Flowers, Franz Kottmann, François Biraben, François Nez, Friar, Friar, Friar, Gilad, Hagley, Hanneke, Hasell, Hill, Hill, Hägler, Ivanov, Jaeckel, Jentschura, Jentschura, Jentschura, Jentschura, Jentschura, Karr, Karshenboim, Karshenboim, Karshenboim, Karshenboim, Karshenboim, Karshenboim, Kelly, Kinoshita, Kohl, Ledwig, Lorenz, Lundeen, Martynenko, Martynenko, Martynenko, Martynenko, Martynenko, McKeen, Miller, Mohr, Müller, Pachucki, Pachucki, Parthey, Parthey, Paul Indelicato, Petermann, Pineda, Pineda, Pohl, Pohl, Pohl, Prok, Randolf Pohl, Raue, Rivas, Romanov, Ron, Schwob, Sick, Sick, Sick, Slifer, Sturm, Suura, Tan, Tucker-Smith, Vanderhaeghen, Wesselmann, Zemach, Zhan   +113 more
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Constraints on Hidden Photon Models from Electron g-2 and Hydrogen Spectroscopy

, 2012
The hidden photon model is one of the simplest models which can explain the anomaly of the muon anomalous magnetic moment (g-2). The experimental constraints are studied in detail, which come from the electron g-2 and the hydrogen transition frequencies.
A. Hansson, B. deB. Darwent, C. E. Moore, C. E. Moore, C. E. Moore, C. E. Moore, C. E. Moore, C. E. Moore, Go Mishima, J. Flowers, J. Prades, Koichi Hamaguchi, Motoi Endo, V. Popov   +13 more
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${\cal{P,T}}$-Odd and Magnetic Hyperfine Interaction Constants and Excited-State Lifetime for HfF$^+$

, 2017
Parity- and time-reversal-symmetry violating interaction constants required for the interpretation of a recent measurement (arXiv:1704.07928 [physics.atom-ph]) of corresponding symmetry violations in the $\Omega=1$ (${^3\Delta}_1$) science state of the ...
Fleig, Timo
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The RMS Charge Radius of the Proton and Zemach Moments [PDF]

, 2011
On the basis of recent precise measurements of the electric form factor of the proton, the Zemach moments, needed as input parameters for the determination of the proton rms radius from the measurement of the Lamb shift in muonic hydrogen, are calculated.
Arrington, Bawin, Bernauer, Borie, Cloet, De Rújula, De Rújula, De Rújula, Eadie, Eides, Friar, Friar, Hyde, James, Jan C. Bernauer, Janssens, Manohar, Melnikov, Michael O. Distler, Mohr, Pachucki, Pachucki, Perdrisat, Pohl, Sick, Thomas Walcher, Udem, Vanderhaeghen, Zemach   +28 more
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Relaxation oscillations, stability, and cavity feedback in a superradiant Raman laser

, 2013
We experimentally study the relaxation oscillations and amplitude stability properties of an optical laser operating deep into the bad-cavity regime using a laser-cooled $^{87}$Rb Raman laser.
A. E. Siegman, James K. Thompson, Joshua M. Weiner, Justin G. Bohnet, Kevin C. Cox, Zilong Chen   +5 more
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Two-state wave packet for strong field-free molecular orientation [PDF]

, 2015
We demonstrate strong laser-field-free orientation of absolute-ground-state carbonyl sulfide molecules. The molecules are oriented by the combination of a 485-ps-long non-resonant laser pulse and a weak static electric field. The edges of the laser pulse
González-Férez, Rosario, Kienitz, Jens S., Küpper, Jochen, Mullins, Terry, Müller, Nele L. M., Trippel, Sebastian   +5 more
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Computation of atomic astrophysical opacities

, 2018
The revision of the standard Los Alamos opacities in the 1980-1990s by a group from the Lawrence Livermore National Laboratory (OPAL) and the Opacity Project (OP) consortium was an early example of collaborative big-data science, leading to reliable data
Mendoza, Claudio
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Observation of Interactions between Trapped Ions and Ultracold Rydberg Atoms [PDF]

, 2019
We report on the observation of interactions between ultracold Rydberg atoms and ions in a Paul trap. The rate of observed inelastic collisions, which manifest themselves as charge transfer between the Rydberg atoms and ions, exceeds that of Langevin ...
Ewald, N. V., Feldker, T., Fürst, H., Gerritsma, R., Hirzler, H.   +4 more
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Investigation of the Gravitational Potential Dependence of the Fine-Structure Constant Using Atomic Dysprosium [PDF]

, 2007
Radio-frequency E1 transitions between nearly degenerate, opposite parity levels of atomic dysprosium were monitored over an eight month period to search for a variation in the fine-structure constant.
A. Cingöz, A. Lapierre, A.-T. Nguyen, D. Budker, J. R. Torgerson, L. Hand, N. Leefer, S. J. Ferrell, S. K. Lamoreaux, V. V. Flambaum   +9 more
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