Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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  • Plakhov, A. Y. (2004)
    The Monge-Kantorovich problem on finding a measure realizing the transportation of mass from to at minimum cost is considered. The initial and resulting distributions of mass are assumed to be the same and the cost of the ...
  • Deb, Sudip K.; Wilding, Martin C.; Somayazulu, Maddury; McMillan, Paul F. (2001-11-29)
    Crystalline and amorphous forms of silicon are the principal materials used for solid-state electronics and photovoltaics technologies. Silicon is therefore a well-studied material, although new structures and properties ...
  • Gohm, Rolf (2003)
    The probabilistic index of a completely positive map is defined in analogy with a formula of M. Pimsner and S. Popa for conditional expectations. As an application, we describe a new strategy for computing the Jones index ...
  • Manero, Octavio (Aberystwyth University, 1980)
    In this thesis we are concerned with the rheological behaviour of industrial liquids such as polymer solutions in complex flow situations and the possibility of predicting this behaviour. Preliminary consideration is ...
  • Barnett, B. N. (Aberystwyth University, 1962)
    Some sequential sampling problems where there in one unknown parameter in a generating stochastic process are considered by Bayesian concepts with the aid of Dynamic Programming equations. Some properties of the ...
  • Plakhov, A. Y.; Gouveia, P. D. F. (2007)
    A two-dimensional body moves through a rarefied medium; the collisions of the medium particles with the body are absolutely elastic. The body performs both translational and slow rotational motion. It is required to select ...
  • Langstaff, David Philip; Evans, David Andrew; Roberts, Owain Rhys; Zhu, Xi (2009-06)
    An extended electron counting detector with a linear array of 1536 pixels across an active area of 38 mm×5 mm is presented. Also presented is an improved control electronics package, based on the National Instruments Compact ...
  • Burgarth, Daniel; Giovannetti, Vittorio (2011-09-27)
    We discuss an explicit protocol which allows one to externally cool and control a composite system by operating on a small subset of it. The scheme permits to transfer arbitrary and unknown quantum states from a memory on ...
  • Finlayson, Chris (2012-01-18)
  • Alexandrov, Sergei; Mishuris, Gennady (2009-10)
    The maximum-friction surface is a source of singular solution behaviour for several rate-independent plasticity models. Solutions based on conventional viscoplastic models do not show such behaviour. For a class of materials, ...
  • Palmer, R. E.; Bedson, T. R.; Jenkins, Tudor; Hayton, D. J. (2001)
    We report a quantitative investigation of direct electron beam writing in monolayer films of passivated gold nanoclusters. In this process, the passivating organic ligands are (partially) removed to create gold-based ...
  • Gough, John E.; James, Matthew R. (IEEE, 2008-12-09)
    The purpose of this paper is to discuss how Willems’ behavioral modeling might be applied to physical systems governed by the laws of quantum physics. A quantum behavior is simply defined in terms of the evolution of ...
  • Zhang, Jingfu; Burgarth, Daniel; Ditty, Michael; Ryan, Colm A.; Chandrashekar, C. M.; Laforest, Martin; Moussa, Osama; Baugh, Jonathan; Laflamme, Raymond (2009-06-16)
    We implement an iterative quantum state transfer exploiting the natural dipolar couplings in a spin chain of a liquid-crystal NMR system. During each iteration, a finite part of the amplitude of the state is transferred ...
  • Burgarth, Daniel Klaus; Giovannetti, Vittorio (2010-08-19)
    In this addendum to our paper [ D. Burgarth and V. Giovannetti Phys. Rev. Lett. 99 100501 (2007)] we prove that during the transformation that allows one to enforce control by relaxation on a quantum system, the ancillary ...
  • James, Matthew R.; Gough, John Edward (2010-08-01)
    The purpose of this paper is to extend J.C. Willems' theory of dissipative systems to open quantum systems described by quantum noise models. This theory, which combines ideas from quantum physics and control theory, ...
  • Gough, John Edward; James, M. R. (2009-05-01)
    A quantum network is an open system consisting of several component Markovian input-output subsystems interconnected by boson field channels carrying quantum stochastic signals. Generalizing the work of Chebotarev and ...
  • Gough, John Edward; Guta, Madalin I.; James, Matthew R.; Nurdin, Hendra I. (2011)
    Recent developments in quantum technology mean that is it now possible to manipulate systems and measure fermion elds (e.g. reservoirs of electrons) at the quantum level. This progress has motivated some recent work on ...
  • Gough, John Edward; James, Matthew R.; Nurdin, Hendra I.; Combes, Joshua (2012-10-15)
    We derive the stochastic master equations, that is to say, quantum filters, and master equations for an arbitrary quantum system probed by a continuous-mode bosonic input field in two types of nonclassical states. Specifically, ...
  • James, Matthew R.; Gough, John E.; Nurdin, Hendra (2012-11-07)
    The purpose of this paper is to determine quantum master and filter equations for systems coupled to fields in certain non-classical continuous-mode states. Specifically, we consider two types of field states (i) single ...
  • Gough, John Edward; Köstler, Claus Michael (2010-12-01)
    We derive the form of the Belavkin-Kushner-Stratonovich equa- tion describing the ltering of a continuous observed quantum system via non-demolition measurements when the statistics of the input eld used for the indirect ...

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