Is space-time symmetry a suitable generalization of parity-time symmetry?
نویسندگان
چکیده
منابع مشابه
Is space-time symmetry a suitable generalization of parity-time symmetry?
We discuss space-time symmetric Hamiltonian operators of the form H = H0+igH ′, whereH0 is Hermitian and g real. H0 is invariant under the unitary operations of a point group G while H ′ is invariant under transformation by elements of a subgroup G′ of G. If G exhibits irreducible representations of dimension greater than unity, then it is possible that H has complex eigenvalues for sufficientl...
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ژورنال
عنوان ژورنال: Annals of Physics
سال: 2014
ISSN: 0003-4916
DOI: 10.1016/j.aop.2014.07.026