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ArtikelCritical Behavior of a Trapped Interacting Bose Gas  
Oleh: Donner, T ; Ritter, S. ; Bourdel, T ; Ottl, A. ; Kohl, M ; Esslinger, T.
Jenis: Article from Bulletin/Magazine
Dalam koleksi: SCIENCE (keterangan: ada di Proquest) vol. 315 no. 5818 (Mar. 2007), page 1556.
Topik: Physics
Ketersediaan
  • Perpustakaan FK
    • Nomor Panggil: S01.K.2007.03
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
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Isi artikelThe phase transition of Bose-Einstein condensation was studied in the critical regime, where fluctuations extend far beyond the length scale of thermal de Broglie waves. We used matter-wave interference to measure the correlation length of these critical fluctuations as a function of temperature. Observations of the diverging behavior of the correlation length above the critical temperature enabled us to determine the critical exponent of the correlation length for a trapped, weakly interacting Bose gas to be v = 0.67 :f: 0.13. This measurement has direct implications for the understanding of second-order phase transitions.
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