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Nuclear matter on a lattice

Müller, H.-M. and Koonin, S. E. and Seki, R. and van Kolck, U. (2000) Nuclear matter on a lattice. Physical Review C, 61 (4). Art. No. 044320. ISSN 0556-2813. doi:10.1103/PhysRevC.61.044320.

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We investigate nuclear matter on a cubic lattice. An exact thermal formalism is applied to nucleons with a Hamiltonian that accommodates on-site and next-neighbor parts of the central, spin-, and isospin-exchange interactions. We describe the nuclear matter Monte Carlo methods which contain elements from shell model Monte Carlo methods and from numerical simulations of the Hubbard model. We show that energy and basic saturation properties of nuclear matter can be reproduced. Evidence of a first-order phase transition from an uncorrelated Fermi gas to a clustered system is observed by computing mechanical and thermodynamical quantities such as compressibility, heat capacity, entropy, and grand potential. We compare symmetry energy and first sound velocities with literature and find reasonable agreement.

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Additional Information:©2000 The American Physical Society. Received 18 October 1999; published 15 March 2000. This work was supported in part by the National Science Foundation, Grants No. PHY97-22428 and PHY94-20470. The calculations were performed on a HP Exemplar X-class supercomputer with 256 nodes, operated by the Center for Advanced Computing Research at the California Institute of Technology.
Issue or Number:4
Record Number:CaltechAUTHORS:MULprc00
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5716
Deposited By: Lindsay Cleary
Deposited On:30 Oct 2006
Last Modified:08 Nov 2021 20:28

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