Browsing Mathematics and Physics by Issue Date

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  • Obreskov, Oleg; Smolyanov, Oleg; Gough, John E. (2005)
    In this paper, we consider stochastic Schrödinger equations with twodimensional white noise. Such equations are used to describe the evolution of an open quantum system undergoing a process of continuous measurement. ...
  • Massiot, D.; Jones, Aled R.; Florian, Pierre; Winter, Rudolf (2005-02)
    The kinetics of the reaction of batches of powdered quartz and sodium carbonate was studied by in situ 23Na nuclear magnetic resonance (NMR) spectroscopy using a laser-heated probe. We show for the first time that the ...
  • Evans, Andrew; Vearey-Roberts, Alex R. (2005-02-10)
    Control of the interfacial potential barrier for metal/n-GaAs diodes has been achieved using thin interlayers of the organic semiconductor, tin phthalocyanine (SnPc). The I-V characteristics for organic-modified Ag/S:GaAs ...
  • Innes, Davina; Brown, Daniel; Parnell, Clare; Bewsher, Danielle (2005-03-11)
    Blinkers are brightenings at network cell junctions that are traditionally identified with SOHO/CDS and explosive events or high velocity events are identified in high resolution UV spectra obtained from HRTS and SOHO/SUMER. ...
  • Hamilton, B.; Poolton, Nigel; Evans, D. A. (2005-04)
    The potential for synchrotron–laser pump–probe luminescence measurements to provide a direct link between the chemical/structural properties of light emitting wide band-gap solids and optically active electronic trapping ...
  • Wallis, D.; Burchell, M. J.; Cook, Anthony; Solomon, C. J. (2005-05)
    Planetary impact craters have a high degree of radial symmetry. This hampers efforts to identify the azimuthal impact direction for most craters – the radially symmetric component of an impact crater swamps any asymmetries ...
  • Meneau, F.; Majerus, O.; Greaves, George; Jones, D. G. (2005-05-27)
    High-resolution inelastic neutron scattering was used to identify major sources of low-frequency vibrations in zeolite crystals. Dispersed and nondispersed modes were found, both of which are prominent in the early stages ...
  • Plakhov, A. Y.; Torres, D. (2005-06-01)
    The problem of minimum resistance is studied for a body moving with constant velocity in a rarefied medium of chaotically moving point particles in the Euclidean space . The distribution of the velocities of the particles ...
  • Gohm, Rolf; Skeide, M. (2005-06-02)
    We apply Hilbert module methods to show that normal completely positive maps admit weak tensor dilations. Appealing to a duality between weak tensor dilations and extensions of CP-maps, we get an existence proof for certain ...
  • Bust, G. S.; Pryse, Sian; Kersley, L.; Middleton, H. R. (2005-07)
    The activities of the International Ionospheric Tomography Community open up new possibilities of simultaneously imaging the large-scale spatial structure of the ionosphere in different longitude sectors. In the study, ...
  • Maclean, Rhona; Beveridge, Colin; Longcope, Dana; Brown, Daniel; Priest, Eric (2005-07-08)
    The magnetic breakout model gives an elegant explanation for the onset of an eruptive solar flare, involving magnetic reconnection at a coronal null point which leads to initially enclosed flux 'breaking out' to large ...
  • Chase, Thomas Robert; Evans, D. A.; Langstaff, David; Bushell, A. (2005-08)
    In electron spectroscopy, multi-channel detection combined with intense radiation sources provides the optimum experimental configuration. Building on the 5 mm, 192-channel ion detector developed at Aberystwyth, longer ...
  • Langstaff, David; Bushell, A.; Chase, Thomas Robert; Evans, Andrew (Elsevier, 2005-08)
    In electron spectroscopy, multi-channel detection combined with intense radiation sources provides the optimum experimental configuration. Building on the 5 mm, 192-channel ion detector developed at Aberystwyth, longer ...
  • Gough, John E.; Sobolev, Adrei (2005-09)
    We establish a quantum functional central limit for the dynamics of a system coupled to a Fermionic bath with a general interaction linear in the creation, annihilation and scattering of the bath reservoir. Following a ...
  • Li, Xing; Habbal, Shadia Rifai (2005-10)
    Resonant interaction between ions (oxygen ions O+5 and protons) and ion cyclotron waves is investigated using a one dimensional hybrid code. Ion cyclotron waves are self-consistently generated by an ion cyclotron anisotropy ...
  • Wood, Ian; Geissert, Matthias; Heck, Horst; Hieber, Matthias (2005-12)
    Let Ω be an exterior domain in It is shown that Ornstein-Uhlenbeck operators L generate C0-semigroups on Lp(Ω) for p ∈ (1, ∞) provided ∂Ω is smooth. The method presented also allows to determine the domain D(L) of L and ...
  • Langstaff, David; Birkinshaw, K. (2005-12-22)
    A charge detector array for recording signals from a microchannel plate (MCP) in which a synchroniser circuit (14) is provided in respect of each of a plurality of channels, interposed between a respective charge amplifier ...
  • Cook, Anthony; Gibbens, M. J. (IEEE, 2006)
    We investigate the use of statistical shape measures for segmented image regions to construct taxonomies of visual similarity. It is demonstrated that without the use of a priori knowledge, cluster analysis can be used to ...
  • Kummerer, B.; Gohm, Rolf; Lang, T. (2006)
    We give a non-commutative generalization of classical symbolic coding in the presence of a synchronizing word. This is done by a scattering theoretical approach. Classically, the existence of a synchronizing word turns out ...
  • Winningham, D.; Grande, Manuel; Lundin, R.; Barabash, S. (2006)
    Auroras are caused by accelerated charged particles precipitating along magnetic field lines into a planetary atmosphere, the auroral brightness being roughly proportional to the precipitating particle energy flux. The ...

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