Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Lockard, Thomas"'
Autor:
Swift, Damian C., Alidoost, Kazem, Austin, Ryan, Lockard, Thomas, Wu, Christine, Hamel, Sebastien, Klepeis, John E., Peralta, Pedro
We derive a continuum-level plasticity model for polycrystalline materials in the high energy density regime, based on a single dislocation density and single mobility mechanism, with an evolution model for the dislocation density. The model is formu
Externí odkaz:
http://arxiv.org/abs/2110.06345
Autor:
Swift, Damian C., Lockard, Thomas, Hamel, Sebastien, Wu, Christine J., Benedict, Lorin X., Sterne, Philip A.
Publikováno v:
Phys. Rev. B 105, 024110 (2022)
Atom-in-jellium calculations of the Einstein frequency in condensed matter and of the equation of state were used to predict the variation of shear modulus from zero pressure to ~$10^7$ g/cm$^3$, for several elements relevant to white dwarf (WD) star
Externí odkaz:
http://arxiv.org/abs/2105.12303
Autor:
Swift, Damian C., Lockard, Thomas, Hamel, Sebastien, Wu, Christine J., Benedict, Lorin X., Sterne, Philip A., Whitley, Heather D.
Atom-in-jellium calculations of the electron states, and perturbative calculations of the Einstein frequency, were used to construct equations of state (EOS) from around $10^{-5}$ to $10^7$g/cm$^3$ and $10^{-4}$ to $10^{6}$eV for elements relevant to
Externí odkaz:
http://arxiv.org/abs/2103.03371
Autor:
Swift, Damian C., Lockard, Thomas, Heuze, Olivier, Frost, Mungo, Glenzer, Siegfried, McClellan, Kenneth J., Hamel, Sebastien, Klepeis, John E., Benedict, Lorin X., Sterne, Philip A., Ackland, Graeme J.
Ru and Rh are interesting cases for comparing equations of state (EOS), because most general purpose EOS are semi-empirical, relying heavily on shock data, and none has been reported for Ru. EOS were calculated for both elements using all-electron at
Externí odkaz:
http://arxiv.org/abs/1909.05391
Autor:
Lockard, Thomas, Millot, Marius, Militzer, Burkhard, Hamel, Sebastien, Benedict, Lorin X., Sterne, Philip A., Swift, Damian C.
Equations of state (EOS) calculated from a computationally efficient atom-in-jellium treatment of the electronic structure have recently been shown to be consistent with more rigorous path integral Monte Carlo (PIMC) and quantum molecular dynamics (Q
Externí odkaz:
http://arxiv.org/abs/1906.09516
Publikováno v:
Phys. Rev. Research 2, 023034 (2020)
Although usually considered as a technique for predicting electron states in dense plasmas, atom-in-jellium calculations can be used to predict the mean displacement of the ion from its equilibrium position in colder matter, as a function of compress
Externí odkaz:
http://arxiv.org/abs/1906.04796
Autor:
Swift, Damian C., Bethkenhagen, Mandy, Correa, Alfredo A., Lockard, Thomas, Hamel, Sebastien, Benedict, Lorin X., Sterne, Philip A., Bennett, Bard I.
Publikováno v:
Phys. Rev. E 101, 053201 (2020)
Atom-in-jellium calculations of the Einstein frequency were used to calculate the mean displacement of an ion over a wide range of compression and temperature. Expressed as a fraction of the Wigner-Seitz radius, the displacement is a measure of the a
Externí odkaz:
http://arxiv.org/abs/1905.08911
Autor:
Swift, Damian C., Lockard, Thomas, Kraus, Richard G., Benedict, Lorin X., Sterne, Philip A., Bethkenhagen, Mandy, Hamel, Sebastien, Bennett, Bard I.
Publikováno v:
Phys. Rev. E 99, 063210 (2019)
Recent path-integral Monte Carlo and quantum molecular dynamics simulations have shown that computationally efficient average-atom models can predict thermodynamic states in warm dense matter to within a few percent. One such atom-in-jellium model ha
Externí odkaz:
http://arxiv.org/abs/1903.00163
Publikováno v:
Journal of Applied Physics; 4/14/2022, Vol. 131 Issue 14, p1-10, 10p
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