Quantum Monte Carlo study of spin-polarized deuterium

被引：2
|
作者：
Beslic, I. [1 ,2 ]
Markic, L. Vranjes [2 ]
Casulleras, J. [1 ]
Boronat, J. [1 ]
机构：
[1] Univ Politecn Cataluna, Dept Fis & Engn Nucl, E-08034 Barcelona, Spain
[2] Univ Split, Fac Sci, HR-21000 Split, Croatia
来源：
PHYSICAL REVIEW B | 2013年 / 88卷 / 02期
关键词：
ALIGNED ATOMIC-HYDROGEN; BOSE-EINSTEIN CONDENSATION; GROUND-STATE PROPERTIES; VARIATIONAL CALCULATIONS; LOW-TEMPERATURE; GAS; SYSTEMS; STABILIZATION; DENSITY; HELIUM;
D O I：
10.1103/PhysRevB.88.024507
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ground-state properties of spin-polarized deuterium (D down arrow) at zero temperature are obtained by means of diffusion Monte Carlo calculations within the fixed-node approximation. Three D down arrow species have been investigated (D down arrow(1), D down arrow(2), D down arrow(3)), corresponding respectively to one, two, and three equally occupied nuclear-spin states. The influence of the backflow correlations on the ground-state energy of the systems is explored. The equations of state of liquid D down arrow(2) and D down arrow(3) are obtained and compared with the ones obtained in previous approximate predictions. The density and pressure at which D down arrow(1) experiences a gas-liquid transition at T = 0 are obtained.
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页数：10
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