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New EFT approach reconciles KS eigenvalues with photoemission data

Researchers have developed an effective field theory to explain discrepancies between calculated and measured electronic band structures in certain metals. Their work shows that Kohn-Sham eigenvalues can represent quasiparticle bands when adjusted by a frozen-core renormalization factor, which accounts for core excitations missed by conventional methods. This approach successfully resolves a long-standing issue in materials science, matching advanced computational results at a significantly lower cost. The study also highlights the potential of LLM-assisted agentic science for accelerating discovery. AI

Summary written by gemini-2.5-flash-lite from 2 sources. How we write summaries →

IMPACT Demonstrates a novel application of LLMs in scientific derivation and verification, potentially streamlining agentic science.

RANK_REASON Academic paper detailing a new theoretical framework and its application to a specific scientific problem.

Read on arXiv cs.AI →

COVERAGE [2]

  1. arXiv cs.LG TIER_1 · Xiansheng Cai, Han Wang, Kun Chen ·

    Kohn-Sham Hamiltonian from Effective Field Theory: Quasiparticle Band Narrowing from Frozen Core Dynamics

    arXiv:2604.25199v1 Announce Type: cross Abstract: Kohn-Sham (KS) eigenvalues are routinely compared with angle-resolved photoemission (ARPES) and used as input for many-body methods, yet density functional theory (DFT) assigns them no physical meaning. For alkali and alkaline-ear…

  2. arXiv cs.AI TIER_1 · Kun Chen ·

    Kohn-Sham Hamiltonian from Effective Field Theory: Quasiparticle Band Narrowing from Frozen Core Dynamics

    Kohn-Sham (KS) eigenvalues are routinely compared with angle-resolved photoemission (ARPES) and used as input for many-body methods, yet density functional theory (DFT) assigns them no physical meaning. For alkali and alkaline-earth metals, KS bandwidths overestimate ARPES measur…