2025/02/13 by Ivan G. Avramidi, Avramidi, Ivan G.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Mathematical Physics (math-ph) #Noncommutative and Quantum Gravity Theories #Quantum Mechanics and Applications #Quantum Mechanics and Non-Hermitian Physics
paper · pdf · doi:10.48550/arxiv.2502.09040
openalex publication_date 2025/02/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the zero modes of the operator Hf=D^*fDf, with a Dirac type operator Df, acting on the spinor bundle over a closed even dimensional Riemannian manifold M. The operator Df=D+ifI is a deformation of the Dirac operator D by a smooth function f. We obtain sufficient conditions on the deformation function that guarantee the positivity of the operator Hf, that is, the absence of zero modes. We also show that these conditions are not necessary and provide an explicit counterexample of a zero mode of the operator Hf.