165,789 research outputs found
The Emergence of Anticommuting Coordinates and the Dirac-Ramond-Kostant operators
The history of anticommuting coordinates is decribed.Comment: 14 pages, Contribution to the Proceedings of The Gunnar Nordstr\"om
Symposium on Theoretical Physics - The Physics of Extra Dimension
Sun and Lightning: The Visibility of Radiance
A long chapter for The War of Appearances: Transparency, Opacity, Radiance (V2_Publishing, 2016) building on the findings of “Charis and Radiance,” an essay published two years earlier. It discusses the inherent connection between visibility and radiance within the framework of Plato’s sun model as the source of reality. The argument develops a system where transcendent verticality and earthly horizontality together construct an “arena of presence” in which things flood each other with light, absorbing and returning portions of it in a circular economy similar to gift exchange
LLAMA: Leveraging Learning to Automatically Manage Algorithms
Algorithm portfolio and selection approaches have achieved remarkable
improvements over single solvers. However, the implementation of such systems
is often highly customised and specific to the problem domain. This makes it
difficult for researchers to explore different techniques for their specific
problems. We present LLAMA, a modular and extensible toolkit implemented as an
R package that facilitates the exploration of a range of different portfolio
techniques on any problem domain. It implements the algorithm selection
approaches most commonly used in the literature and leverages the extensive
library of machine learning algorithms and techniques in R. We describe the
current capabilities and limitations of the toolkit and illustrate its usage on
a set of example SAT problems
E-learning guideline for submission of QLIF publications to Organic Eprints
Following a workshop at the 3rd QLIF congress, a tutorial 5-min speakshow on submission of papers to Organic Eprints archive has been produce
Decoupling of beams previously coupled by effective stand-alone solenoid fringe fields
Beams passing through a solenoid fringe field experience x-y coupling and
change of their eigen-emittances. As reported previously (C.~Xiao et al., Phys.
Rev. ST Accel. Beams 044201, {\bf 16} 2013) constant settings of a subsequent
decoupling section can be found such that variation of the fringe field
strength will not change the Twiss parameters and in both
transverse planes at the exit of the decoupling section. For time being this
feature was understood for a generic beam line but not to the generality to
which it is observed. This report is on explanation of the convenient
decoupling of fringe-coupled beams by any beam line that provides decoupling.
For better coherence this report includes recapitulation of previous works.Comment: 4 pages, 3 figures, typos fixe
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