Bose–Einstein Condensation in Nonlinear System

Shosuke Sasaki
Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka, Japan

Series: Physics Research and Technology
BISAC: SCI055000

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Bose–Einstein condensation was discovered in atomic gas systems, where Bose condensate occupies 100% of the total system at zero temperature. Liquid helium systems have been investigated based on the Landau theory, where the superfluid component of liquid helium is background flow. According to the Landau theory, it is doubtful that the superfluid component is a Bose condensate.

In experiments, the probability of helium atoms with zero momentum is a few percent of the total liquid helium at ultra-low temperatures. However, the superfluid component occupies 100% of the liquid helium at zero temperature, as macroscopic observations indicate. This new book introduces a quasi-particle representing an eigenstate of the total Hamiltonian (Imprint: Novinka)

Preface

I. Introduction, pp. 1-6

II. General Form of Total Energy, pp. 7-21

III. Temperature Dependence of the Excitation Energy, pp. 23-30

IV. Calculation of Entropy, pp. 31-40

V. Specific Heat, pp. 41-57

VI. Bose–Einstein Condensate of Dressed Bosons, pp. 59-69

VII. ë Transition and Phase Diagram, pp. 71-75

VIII. Two-Fluid Mechanism Caused by Nonlinear Energy Form, pp. 77-90

IX. Properties of the Solutions, pp. 91-98

X. Contribution of Dressed Bosons in Several Phenomena, pp. 99-107

XI. Thermodynamic Functions, pp. 109-111

XII. Discussion and Conclusions, pp. 113-118

Appendixes, pp. 119-162

References, pp. 163-168

Index

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