Pastore, Alessandro orcid.org/0000-0003-3354-6432, Shelley, M., Baroni, Simone et al. (1 more author) (2017) A new statistical method for the structure of the inner crust of neutron stars. Journal of physics g-Nuclear and particle physics. 094003. ISSN 0954-3899
Abstract
We investigated the structure of the low density regions of the inner crust of neutron stars using the Hartree-Fock-Bogoliubov (HFB) model to predict the proton content Z of the nuclear clusters and, together with the lattice spacing, the proton content of the crust as a function of the total baryonic density . The exploration of the energy surface in the configuration space and the search for the local minima require thousands of calculations. Each of them implies a HFB calculation in a box with a large number of particles, thus making the whole process very demanding. In this work, we apply a statistical model called Gaussian process emulator that makes the exploration of the energy surface ten times faster. We also present a novel treatment of the HFB equations that leads to an uncertainty on the total energy of per particle. Such a high precision is necessary to distinguish neighbour configurations around the energy minima.
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Copyright, Publisher and Additional Information: | Invited article for special issue "emerging leaders". This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details | ||||||
Keywords: | Gaussian process emulator, Hartree-Fock-Bogoliubov, inner crust, neutron stars | ||||||
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Institution: | The University of York | ||||||
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) | ||||||
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Depositing User: | Pure (York) | ||||||
Date Deposited: | 09 Nov 2017 13:58 | ||||||
Last Modified: | 04 Feb 2024 00:50 | ||||||
Published Version: | https://doi.org/10.1088/1361-6471/aa8207 | ||||||
Status: | Published | ||||||
Refereed: | Yes | ||||||
Identification Number: | https://doi.org/10.1088/1361-6471/aa8207 | ||||||
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