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Supersymmetry: Boundary Conditions and Edge States

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arxiv 1501.00634 v2 pith:CFBIYIAZ submitted 2015-01-04 hep-th cond-mat.mtrl-scicond-mat.supr-conmath-phmath.MP

Supersymmetry: Boundary Conditions and Edge States

classification hep-th cond-mat.mtrl-scicond-mat.supr-conmath-phmath.MP
keywords boundaryconditionsmathcalsusystatesallowedboundariesbreak
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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When spatial boundaries are inserted, SUSY can be broken. We show that in an $\mathcal{N}=2$ supersymmetric theory, all the boundary conditions allowed by self-adjointness of the Hamiltonian break $\mathcal{N}=2$ SUSY while only a few of these boundary conditions preserve $\mathcal{N}=1$ SUSY. We also show that for a subset of the boundary conditions compatible with $\mathcal{N}=1$ SUSY, there exist fermionic ground states which are localized near the boundary.

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