Physics – Condensed Matter – Superconductivity
Scientific paper
2000-05-22
Physics
Condensed Matter
Superconductivity
Invited talk at the M2S conference in Houston
Scientific paper
According to Wilson's theory of critical phenomena, critical exponents are universal functions of $d$, the dimension of space, and $n$, the dimension of the symmetry group. SO(5) theory of antiferromagnetism and superconductivity predicts a bicritical point where $T_N$ and $T_c$ intersect. By measuring critical exponents close to the bicritical point, and knowing that $d=3$, one can experimentally measure the number 5 of the SO(5) theory.
Hu Jiang-Ping
Zhang Shou-Cheng
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