74,002 research outputs found
Global Analytic Solutions for the Nonlinear Schr\"odinger Equation
We prove the existence of global analytic solutions to the nonlinear
Schr\"odinger equation in one dimension for a certain type of analytic initial
data in .Comment: Corrected errors in proofs in section
A Remark on Unconditional Uniqueness in the Chern-Simons-Higgs Model
The solution of the Chern-Simons-Higgs model in Lorenz gauge with data for
the potential in and for the Higgs field in is
shown to be unique in the natural space for , where corresponds to finite energy. Huh and Oh
recently proved local well-posedness for , but uniqueness was obtained
only in a proper subspace of Bourgain type. We prove that any solution in
must in fact belong to the space
, hence it is the unique solution obtained by Huh and Oh
Model studies of fluctuations in the background for jets in heavy ion collisions
Jets produced in high energy heavy ion collisions are quenched by the
production of the quark gluon plasma. Measurements of these jets are influenced
by the methods used to suppress and subtract the large, fluctuating background
and the assumptions inherent in these methods. We compare the measurements of
the background in Pb+Pb collisions at = 2.76 TeV by the ALICE
collaboration to calculations in TennGen (a data-driven random background
generator) and PYTHIA Angantyr. The standard deviation of the energy in random
cones in TennGen is approximately in agreement with the form predicted in the
ALICE paper, with deviations of 1-6 . The standard deviation of energy in
random cones in Angantyr exceeds the same predictions by approximately 40 .
Deviations in both models can be explained by the assumption that the single
particle is a Gamma distribution in the derivation of the
prediction. This indicates that model comparisons are potentially sensitive to
the treatment of the background
Neural Networks Architecture Evaluation in a Quantum Computer
In this work, we propose a quantum algorithm to evaluate neural networks
architectures named Quantum Neural Network Architecture Evaluation (QNNAE). The
proposed algorithm is based on a quantum associative memory and the learning
algorithm for artificial neural networks. Unlike conventional algorithms for
evaluating neural network architectures, QNNAE does not depend on
initialization of weights. The proposed algorithm has a binary output and
results in 0 with probability proportional to the performance of the network.
And its computational cost is equal to the computational cost to train a neural
network
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