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Elasticity of Nuclear Pasta

Caplan, M. E. and Schneider, A. S. and Horowitz, C. J. (2018) Elasticity of Nuclear Pasta. Physical Review Letters, 121 (13). Art. No. 132701. ISSN 0031-9007.

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The elastic properties of neutron star crusts are relevant for a variety of currently observable or near-future electromagnetic and gravitational wave phenomena. These phenomena may depend on the elastic properties of nuclear pasta found in the inner crust. We present large-scale classical molecular dynamics simulations where we deform nuclear pasta. We simulate idealized samples of nuclear pasta and describe their breaking mechanism. We also deform nuclear pasta that is arranged into many domains, similar to what is known for the ions in neutron star crusts. Our results show that nuclear pasta may be the strongest known material, perhaps with a shear modulus of 10^(30)  ergs/cm^3 and a breaking strain greater than 0.1.

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URLURL TypeDescription Paper
Schneider, A. S.0000-0003-0849-7691
Additional Information:© 2018 American Physical Society. Received 6 July 2018; published 24 September 2018. M. E. C. acknowledges support as a CITA National Fellow. A. S. S. is supported by the National Science Foundation under Grants No. AST-1333520 and No. CAREER PHY-1151197. C. J. H. supported in part by U.S. Department of Energy Grants No. DE-FG02-87ER40365 (Indiana University) and No. DE-SC0018083 (NUCLEI SciDAC-4 Collaboration). This research was supported in part by Lilly Endowment, Inc., through its support for the Indiana University Pervasive Technology Institute, and in part by the Indiana METACyt Initiative. The Indiana METACyt Initiative at IU was also supported in part by Lilly Endowment, Inc. We thank A. Cumming and A. Chugunov for conversations.
Group:TAPIR, Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Canadian Institute for Theoretical AstrophysicsUNSPECIFIED
Department of Energy (DOE)DE-FG02-87ER40365
Department of Energy (DOE)DE-SC0018083
Lilly Endowment, Inc.UNSPECIFIED
Indiana METACyt InitiativeUNSPECIFIED
Issue or Number:13
Record Number:CaltechAUTHORS:20180924-154414585
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89896
Deposited By: Tony Diaz
Deposited On:24 Sep 2018 22:54
Last Modified:09 Mar 2020 13:19

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