Cấu trúc pha của sự cô đặc bose-einstein trong các chất khí bose cực lạnh

• Ngôn ngữ: vie
• Ký hiệu phân loại: 530 Physics
• Thông tin xuất bản: Communications in physics, 2014
• Mô tả vật lý: 343-351
• Bộ sưu tập: Metadata
• ID: 489549

Tóm tắt

The Bose-Einstein condensation of ultra-cold Bose gases is studied by means of Ihe. Cornwall-Jackiw Tomboulis effective potential approach in the improved double-bubble approximation which preserves the Goldstone theorem. The phase structure of Bose-Einstein condensate associating with two different types of phase transition is systematically investigated. Its main feature is that the symmetry which was broken at zero temperature gets restored at higher temperature.