(The) field theoretic approach to high Tc superconductivity with abelian chern-simons term = 가환chern-simons항에 의한 고온 전이 초전도성의 장론적 접근

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I start with a system involving O(3) nonlinear $\sigma$ -model and a Abelian Chern-Simons term. Since the latter is nonlocal in n field through A$\mu$, I rewrite the system into a CPI form which naturally appears a local gauge potential A$\mu$. And I also prove that CS term is locally the total divergence. the coefficient of CS term is fixed to n/4$\pi$, n=integer, by gauge invariance requirements on a three-dimensional manifold of the form $S^2\times{S^1}$. I find that the system is equivalent at low momenta to a system of n neutral fermions with strong Thirring type interactions between currents corresponding to different flavors, which cannot be fine-tuned to zero. Given that such system may be considered as long wave length limits of appropriate statistical systems describing high $T_c$ superconductors I relate these qualitative considerations to Lauglin``s ideas on pairing of spinons and (or) holones in order to explain the experimentally observed charge-2e order parameter.
Advisors
Kim, Jae-Kwan김재관
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
1990
Identifier
67148/325007 / 000881113
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 1990.2, [ [iii], 45 p. ; ]

URI
http://hdl.handle.net/10203/48231
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=67148&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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