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20242026
most citedNon-Hermitian Generalization of Rayleigh-Schrödinger Perturbation Theory

6 citations · 7 across the 5 of their papers we have counts for

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5 papers

quant-ph2026

Non-Hermitian Rayleigh-Schrödinger-like Perturbation Theory at Exceptional Point

Wei-Ming Chen, Chia-Yi Ju

We develop a Rayleigh--Schrödinger-like perturbation theory for non-Hermitian quantum systems at an exceptional point of order . Working in the Jordan basis of the unperturbed H…

hep-th2025

Fermionic Boundary Correlators in (EA)dS space

Wei-Ming Chen, Yu-tin Huang, Zi-Xun Huang +1

In this paper we bootstrap de Sitter wavefunction coefficients (WFCs) involving fermionic operators. Starting with a fixed total-energy pole order, we systematically impose the con…

hep-th2025

Flat space Fermionic Wave-function coefficients

Bo-Ting Chen, Wei-Ming Chen, Yu-tin Huang +2

In this work we analyze the analytic structure of tree-level flat-space wavefunction coefficients (WFCs), with particular attention to fermionic operators, and derive cutting rules…

quant-ph2024★ 6 cited

Non-Hermitian Generalization of Rayleigh-Schrödinger Perturbation Theory

Wei-Ming Chen, Yen-Ting Lin, Chia-Yi Ju

While perturbation theories constitute a significant foundation of modern quantum system analysis, extending them from the Hermitian to the non-Hermitian regime remains a non-trivi…

quant-ph2024★ 1 cited

Optimal probe states for single-mode quantum target detection in arbitrary object reflectivity

Wei-Ming Chen, Pin-Ju Tsai

Quantum target detection (QTD) utilizes nonclassical resources to enable radar-like detection for identifying reflecting objects in challenging environments, surpassing classical m…