Transition temperature to the Bose-Einstein condensation of spin polarized tritium, hydrogen, and 4He gases using the second virial coefficient

IF 4.6 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
B.R. Joudeh
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引用次数: 0

Abstract

In this study, the transition temperature to the Bose-Einstein condensation of spin-polarized tritium (T↓), hydrogen (H↓), and 4He gases is obtained based on the second virial coefficient. The computations are performed using the Silvera triplet-state potential and HFDHE2 potential for spin-polarized atomic hydrogen isotopes and 4He gas, respectively. The thermophysical properties of these Bose systems are computed, including the Helmholtz free energy, entropy, the acoustic virial coefficient, and the second virial coefficient. Large negative values of the second virial coefficient and the acoustic virial coefficient are obtained, reflecting the strong overall attraction of inter-bosonic potential, which gives an indication of the onset of condensation at very low temperatures. At the transition temperature, the stable minimum of the Helmholtz free energy is an indicator of the sort of Bose-Einstein condensation (BEC). As a consequence, the system made a transition to a higher-order state, which is recognized with BEC and explored. The transition temperature is shifted towards a lower value than for the ideal Bose gas.

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来源期刊
Chinese Journal of Physics
Chinese Journal of Physics 物理-物理:综合
CiteScore
8.50
自引率
10.00%
发文量
361
审稿时长
44 days
期刊介绍: The Chinese Journal of Physics publishes important advances in various branches in physics, including statistical and biophysical physics, condensed matter physics, atomic/molecular physics, optics, particle physics and nuclear physics. The editors welcome manuscripts on: -General Physics: Statistical and Quantum Mechanics, etc.- Gravitation and Astrophysics- Elementary Particles and Fields- Nuclear Physics- Atomic, Molecular, and Optical Physics- Quantum Information and Quantum Computation- Fluid Dynamics, Nonlinear Dynamics, Chaos, and Complex Networks- Plasma and Beam Physics- Condensed Matter: Structure, etc.- Condensed Matter: Electronic Properties, etc.- Polymer, Soft Matter, Biological, and Interdisciplinary Physics. CJP publishes regular research papers, feature articles and review papers.
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