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  • American Institute of Physics (AIP)  (2)
  • 1995-1999  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Closure of field operators, asymptotic Abelianness, and vacuum structure in hyperfunction quantum field theory (1998)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 39 (1998), S. 5098-5111 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: Though, in contrast to standard quantum field theory (QFT), the tensor-algebra over the test-function space of hyperfunction quantum field theory has no local structure, the localization properties of states on this algebra can be used to derive asymptotic Abelianness in spacelike directions. Again, in contrast to standard QFT, the closure of (Hermitian) field operators can destroy localization properties. This problem is addressed in a natural modification of the definition of the closure, called the local closure. This allows one, in conjunction with asymptotic Abelianness, to define a proper reduction of the field algebra to the subspace of the translation invariant states, and to investigate the dimension of this subspace. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.532560
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  • 2
    Electronic Resource
    Electronic Resource
    Photoinduced charge transfer in conducting polymer C60 composites (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 106 (1997), S. 9634-9638 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We propose a simple model for photoinduced charge transfer in conducting polymer C60 composites. Our model consists of coupled Su–Schrieffer–Heeger models for a single polymer chain and a C60 molecule. We have included the coupling of the molecular vibrations to the π electrons but have neglected explicit electron–electron interaction. Using adiabatic and nonadiabatic molecular dynamics, we find photoinduced electron transfer takes place in 200–300 fs. This is consistent with an experimental upper bound of 300 fs. Nonadiabatic effects tend to average out pronounced oscillatory behavior in the adiabatic calculations. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.473862
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