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.

引用

页数：10

共 38 条

[1] A NEW DETERMINATION OF THE GROUND-STATE INTERATOMIC POTENTIAL FOR HE-2 [J].

AZIZ, RA ;

MCCOURT, FRW ;

WONG, CCK .

MOLECULAR PHYSICS, 1987, 61 (06) :1487-1511

[2] Influence of the Interaction Potential on the Da†"1 Equation of State [J].

Beslic, I. ;

Markic, L. Vranjes ;

Casulleras, J. ;

Boronat, J. .

JOURNAL OF LOW TEMPERATURE PHYSICS, 2013, 171 (3-4) :436-442

[3] Quantum Monte Carlo simulation of spin-polarized tritium [J].

Beslic, I. ;

Markic, L. Vranjes ;

Boronat, J. .

PHYSICAL REVIEW B, 2009, 80 (13)

[4] Formation of atomic tritium clusters and Bose-Einstein condensates [J].

Blume, D ;

Esry, BD ;

Greene, CH ;

Klausen, NN ;

Hanna, GJ .

PHYSICAL REVIEW LETTERS, 2002, 89 (16) :163402/1-163402/4

[5] MONTE-CARLO ANALYSIS OF AN INTERATOMIC POTENTIAL FOR HE [J].

BORONAT, J ;

CASULLERAS, J .

PHYSICAL REVIEW B, 1994, 49 (13) :8920-8930

[6] UNBIASED ESTIMATORS IN QUANTUM MONTE-CARLO METHODS - APPLICATION TO LIQUID-HE-4 [J].

CASULLERAS, J ;

BORONAT, J .

PHYSICAL REVIEW B, 1995, 52 (05) :3654-3661

[7]

CLARK JW, 1989, COND MAT TH, V4, P1

[8] ELEMENTARY EXCITATIONS OF SPIN-ALIGNED DEUTERIUM [J].

DAVE, RD ;

CLARK, JW ;

PANOFF, RM .

PHYSICAL REVIEW B, 1990, 41 (01) :757-760

[9]

EFIMOV VN, 1965, SOV PHYS JETP-USSR, V20, P388

[10] MONTE-CARLO SIMULATION OF SPIN-ALIGNED ATOMIC-HYDROGEN [J].

ENTEL, P ;

ANLAUF, J .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1981, 42 (03) :191-198

← 1 2 3 4 →