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Quantum Device Fabrication Process Engineering

Stationary perturbation theory without sums over intermediate states: Supersymmetric Expansion Algorithm

arXiv

Authors: M. Napsuciale, S. Rodríguez

Year

2026

Paper ID

3838

Status

Preprint

Abstract Read

~2 min

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Abstract

In this work we show that results of Rayleigh-Schrödinger perturbation theory can be easily obtained using the recently proposed supersymmetric expansion algorithm. Our formalism avoids the sums over intermediate states and yield directly corrections to the energy and eigenstates in terms of integrals weighted by the probability densities for the edge states of the involved supersymmetric Hamiltonians.

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In this work we show that results of Rayleigh-Schrödinger perturbation theory can be easily obtained using the recently proposed supersymmetric expansion algorithm.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.09436 [2] arXiv https://arxiv.org/abs/2601.09436 [3] Publisher https://arxiv.org/abs/2601.09436

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