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- Centre National de la Recherche ScientifiqueFR487 papers
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40 papers · 1 filter
Bohm-Aharonov type effects in dissipative atomic systems
Allan I. Solomon, Sonia G. Schirmer
A state in quantum mechanics is defined as a positive operator of norm 1. For finite systems, this may be thought of as a positive matrix of trace 1. This constraint of positivity…
The periods of the intermediate polar RX J0153.3+7446
A. J. Norton, J. D. Tanner
We present the first optical photometry of the counterpart to the candidate intermediate polar RX J0153.3+7446. This reveals an optical pulse period of 2333s +/- 5s. Reanalysis of…
Semilinear Response
Michael Wilkinson, Bernhard Mehlig, Doron Cohen
We discuss the response of a quantum system to a time-dependent perturbation with spectrum Φ(ω). This is characterised by a rate constant D describing the diffusion of occupation p…
Discovery and modelling of disc precession in the M31 X-ray binary Bo 158?
R. Barnard, S. B. Foulkes, C. A. Haswell +3
The low mass X-ray binary (LMXB) associated with the M31 globular cluster Bo 158 is known to exhibit intensity dips on a ~2.78 hr period. This is due to obscuration of the X-ray so…
Magnetic anisotropy of vicinal (001) fcc Co films: role of crystal splitting and structure relaxation in step-decoration effect
M. Cinal, A. Umerski
The uniaxial in-plane magnetic anisotropy (UIP-MA) constant is calculated for a single step on the (001) surface of fcc Co() films. The calculations are done for both an undecor…
A ZZ Ceti white dwarf in SDSS J133941.11+484727.5
B. T. Gaensicke, P. Rodriguez-Gil, T. R. Marsh +19
We present time-resolved spectroscopy and photometry of the cataclysmic variable (CV) SDSSJ133941.11+484727.5 (SDSS1339) which has been discovered in the Sloan Digital Sky Survey D…