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Emergent spin

delete2014-03-01
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Michael Creutz *
DOI:10.1016/j.aop.2013.12.002delete
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摘要

摘要

En 中文
Quantum mechanics and relativity in the continuum imply the well known spin-statistics connection. However for particles hopping on a lattice, there is no such constraint. If a lattice model yields a relativistic field theory in a continuum limit, this constraint must emerge for physical excitations. We discuss a few models where a spin-less fermion hopping on a lattice gives excitations which satisfy the continuum Dirac equation. This includes such well known systems such as graphene and staggered fermions. (C) 2013 Elsevier Inc. All rights reserved.
Keyword:
Lattice field theory
Spin and statistics
Fermion doubling
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Annals of Physics 封面图
Annals of Physics
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3
论文数:
5.4K
被引数:
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