N=2 Susy

[Thaddeus Olczyk]

On page 136 of Kaku II, he states that several asumptions about phenomenology
result in two results: the compactification manifold is CY, and that there
must be a " hidden, global N=2 superconformal symmetry". Yet later in the same
circumstances he uses the N=2 superconformal algebra. Since this is a noether
current it must be generated by a local symmetry. What gives? Is this
just another mistake?
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Thaddeus Olczyk, University of Illinois at Chicago
olc...@uicws.phy.uic.edu

[Matt McIrvin]

U16072%uicvm....@ohstvma.acs.ohio-state.edu (Thaddeus Olczyk) writes:

>On page 136 of Kaku II, he states that several asumptions about phenomenology
>result in two results: the compactification manifold is CY, and that there
>must be a " hidden, global N=2 superconformal symmetry". Yet later in the same
>circumstances he uses the N=2 superconformal algebra. Since this is a noether
>current it must be generated by a local symmetry. What gives? Is this
>just another mistake?

Unless I'm missing something specific to this discussion, nothing's wrong
with this. Noether currents are generated by global symmetries as well as
by local ones. For example, in ordinary field theory you haven't gauged
the Poincare group (general relativity hasn't been incorporated), but
energy, momentum, and angular momentum are conserved because of *global*
Poincare symmetry. A global symmetry can induce *local* conservation
of a quantity.
--
Matt McIrvin