The Spatially Homogeneous Boltzmann Equation for Bose-Einstein
Particles: Rate of Strong Convergence to Equilibrium
August 12, 2018
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Mathematics
Analysis of PDEs
Analysis of PDEs
The paper is a continuation of our previous work on the spatially homogeneous
Boltzmann equation for Bose-Einstein particles with quantum collision kernel
that includes the hard sphere model. Solutions Ft​ under consideration that
conserv...
Identification of malfunctioning quantum devices
August 8, 2018
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Physics
Quantum Physics
We consider the problem of correctly identifying a malfunctioning quantum
device that forms part of a network of N such devices, which can be
considered as the quantum analogue of classical anomaly detection. In the case
where the devices...
Sequential Monte Carlo Bandits
August 8, 2018
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Statistics
Computer Science
Machine Learning
Machine Learning
Computation
We extend Bayesian multi-armed bandit (MAB) algorithms beyond their original
setting by making use of sequential Monte Carlo (SMC) methods.
A MAB is a sequential decision making problem where the goal is to learn a
policy that maximizes l...
Evolution of Preferences in Multiple Populations
August 7, 2018
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Computer Science
Computer Science and Game Theory
We study the evolution of preferences in multi-population settings that allow
matches across distinct populations. Each individual has subjective preferences
over potential outcomes, and chooses a best response based on his preferences
and ...
Semi-discrete unbalanced optimal transport and quantization
August 6, 2018
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Mathematics
Optimization and Control
In this paper we study the class of optimal entropy-transport problems
introduced by Liero, Mielke and Savar\'e in Inventiones Mathematicae 211 in
2018. This class of unbalanced transport metrics allows for transport between
measures of dif...
Spglib: a software library for crystal symmetry search
August 5, 2018
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Physics
Materials Science
A computer algorithm to search symmetries of crystal structures as
implemented in the \texttt{spglib} code is described. An iterative algorithm is
employed to robustly identify space group types tolerating a certain amount of
distortion in ...
A Generalised Exactness Structure for Sets
August 3, 2018
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Mathematics
Category Theory
Category Theory
Two adjoint functors can be seen as generalisations of the two functions
within a Galois connection. If instead the adjoints are not generalised from
functions, but from relations, then analogously the object of study becomes a
more general...
Relation between particle beam eigen-emittances and canonical vorticity
flux
August 2, 2018
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Physics
Accelerator Physics
Plasma Physics
Accelerator Physics
Plasma Physics
Particle beams provided by accelerators occupy a finite volume of the four
dimensional transverse phase space. The latter is spanned by the four degrees
of freedom, i.e., horizontal/vertical position and momentum. This volume is
referred to...
Describing Quasi-Graphic Matroids
August 1, 2018
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Mathematics
Combinatorics
The class of quasi-graphic matroids recently introduced by Geelen, Gerards,
and Whittle generalises each of the classes of frame matroids and
lifted-graphic matroids introduced earlier by Zaslavsky. For each biased graph
(G,B) Z...
The econometrics of happiness: Are we underestimating the returns to
education and income?
July 31, 2018
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Economics
Quantitative Finance
Econometrics
General Economics
Economics
Econometrics
General Economics
Economics
This paper describes a fundamental and empirically conspicuous problem
inherent to surveys of human feelings and opinions in which subjective
responses are elicited on numerical scales. The paper also proposes a solution.
The problem is a t...