Microscopic calculations of nuclear and neutron matter, symmetry energy and neutron stars

Gandolfi, S.

doi:10.5506/APhysPolB.46.359

Title: Microscopic calculations of nuclear and neutron matter, symmetry energy and neutron stars

Full Record
Other Related Research

Abstract

We present Quantum Monte Carlo calculations of the equation of state of neutron matter. The equation of state is directly related to the symmetry energy and determines the mass and radius of neutron stars, providing then a connection between terrestrial experiments and astronomical observations. As a result, we also show preliminary results of the equation of state of nuclear matter.

Authors:

Gandolfi, S. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Sun Feb 01 00:00:00 EST 2015

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1239307

Report Number(s):: LA-UR-14-28537
Journal ID: ISSN 0587-4254; appoa

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: Acta Physica Polonica. Series B

Additional Journal Information:: Journal Volume: 46; Journal Issue: 3; Journal ID: ISSN 0587-4254

Publisher:: Jagiellonian University

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Gandolfi, S. Microscopic calculations of nuclear and neutron matter, symmetry energy and neutron stars.  United States: N. p., 2015. 
Web.  doi:10.5506/APhysPolB.46.359.

Copy to clipboard


                    Gandolfi, S. Microscopic calculations of nuclear and neutron matter, symmetry energy and neutron stars.  United States.  https://doi.org/10.5506/APhysPolB.46.359

Copy to clipboard


                    Gandolfi, S. Sun .  
"Microscopic calculations of nuclear and neutron matter, symmetry energy and neutron stars".  United States.  https://doi.org/10.5506/APhysPolB.46.359.  https://www.osti.gov/servlets/purl/1239307.

Copy to clipboard


                    
@article{osti_1239307,

  title        = {Microscopic calculations of nuclear and neutron matter, symmetry energy and neutron stars},

  author       = {Gandolfi, S.},

  abstractNote = {We present Quantum Monte Carlo calculations of the equation of state of neutron matter. The equation of state is directly related to the symmetry energy and determines the mass and radius of neutron stars, providing then a connection between terrestrial experiments and astronomical observations. As a result, we also show preliminary results of the equation of state of nuclear matter.},

  doi          = {10.5506/APhysPolB.46.359},

  journal      = {Acta Physica Polonica. Series B},

  number       = 3,

  volume       = 46,

  place        = {United States},

  year         = {Sun Feb 01 00:00:00 EST 2015},

  month        = {Sun Feb 01 00:00:00 EST 2015}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.5506/APhysPolB.46.359

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 1 work

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Neutron matter, symmetry energy and neutron stars

Journal Article Gandolfi, S. ; Steiner, A. W. - Journal of Physics. Conference Series

Recent progress in quantum Monte Carlo with modern nucleon-nucleon interactions have enabled the successful description of properties of light nuclei and neutron- rich matter. Of particular interest is the nuclear symmetry energy, the energy cost of creating an isospin asymmetry, and its connection to the structure of neutron stars. Combining these advances with recent observations of neutron star masses and radii gives insight into the equation of state of neutron-rich matter near and above the saturation density. In particular, neutron star radius measurements constrain the derivative of the symmetry energy.
Cited by 4
https://doi.org/10.1088/1742-6596/665/1/012063

Full Text Available
The equation of state of neutron matter, symmetry energy and neutron star structure

Journal Article Gandolfi, S. ; Carlson, J. ; Reddy, S. ; ... - European Physical Journal. A

We review the calculation of the equation of state of pure neutron matter using quantum Monte Carlo (QMC) methods. QMC algorithms permit the study of many-body nuclear systems using realistic two-and three-body forces in a non-perturbative framework. We present the results for the equation of state of neutron matter, and focus on the role of three-neutron forces at supranuclear density. We discuss the correlation between the symmetry energy, the neutron star radius and the symmetry energy. We also combine QMC and theoretical models of the three-nucleon interactions, and recent neutron star observations to constrain the value of the symmetry energymore » and its density dependence.« less
https://doi.org/10.1140/epja/i2014-14010-5
Neutron matter, symmetry energy and neutron stars

Conference Stefano, Gandolfi ; Steiner, Andrew W.

Recent progress in quantum Monte Carlo with modern nucleon-nucleon interactions have enabled the successful description of properties of light nuclei and neutron-rich matter. Of particular interest is the nuclear symmetry energy, the energy cost of creating an isospin asymmetry, and its connection to the structure of neutron stars. Combining these advances with recent observations of neutron star masses and radii gives insight into the equation of state of neutron-rich matter near and above the saturation density. In particular, neutron star radius measurements constrain the derivative of the symmetry energy.
Full Text Available
Progress in Constraining Nuclear Symmetry Energy Using Neutron Star Observables Since GW170817

Journal Article Li, Bao-An ; Cai, Bao-Jun ; Xie, Wen-Jie ; ... - Universe

The density dependence of nuclear symmetry energy is among the most uncertain parts of the Equation of State (EOS) of dense neutron-rich nuclear matter. It is currently poorly known especially at suprasaturation densities partially because of our poor knowledge about isovector nuclear interactions at short distances. Because of its broad impacts on many interesting issues, pinning down the density dependence of nuclear symmetry energy has been a longstanding and shared goal of both astrophysics and nuclear physics. New observational data of neutron stars including their masses, radii, and tidal deformations since GW170817 have helped improve our knowledge about nuclear symmetrymore »« less
https://doi.org/10.3390/universe7060182
Nuclear and neutron-star matter from local chiral interactions

Journal Article Lonardoni, D. ; Tews, I. ; Gandolfi, S. ; ... - Physical Review Research

We report a quantum Monte Carlo calculation of the equation of state of symmetric nuclear matter using local interactions derived from chiral effective field theory up to next-to-next-to-leading order fit to few-body observables only. The empirical saturation density and energy are well reproduced within statistical and systematic uncertainties. We have also derived the symmetry energy as a function of the density, finding good agreement with available experimentally derived constraints at saturation and twice saturation density. We find that the corresponding pressure is also in excellent agreement with recent constraints extracted from gravitational waves of the neutron-star merger GW170817 by themore » LIGO-Virgo detection« less
https://doi.org/10.1103/PhysRevResearch.2.022033

Similar Records