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quant-ph2023
Hellmann Feynman Theorem in Non-Hermitian system
Gaurav Hajong, Ranjan Modak, Bhabani Prasad Mandal
We revisit the celebrated Hellmann-Feynman theorem (HFT) in the PT invariant non-Hermitian quantum physics framework. We derive a modified version of HFT by changing the definition…
quant-ph2023★ 2 cited
Non-Hermitian description of sharp quantum resetting
Ranjan Modak, S. Aravinda
We study a non-interacting quantum particle, moving on a one-dimensional lattice, which is subjected to repetitive measurements. We investigate the consequence when such motion is…