Bound States of a Lattice Composite Boson on a “Magnetic” Impurity

L. I. Knyazeva; V. I. Yudson

doi:10.1134/s0021364026607657

August 11, 2026JETP LettersOpen Access

Bound States of a Lattice Composite Boson on a “Magnetic” Impurity

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Key Points

This research aims to explore the bound states of composite bosons influenced by a magnetic impurity on a lattice.
Analyzed composite bosons formed by two fermionic species on a lattice.
Examined the effects of a static magnetic impurity on the bound states of these bosons.
Calculated the energies and critical impurity strength values for the occurrence of bound states.
Identified multiple bound states related to the impurity strength.
Calculated critical values of the impurity strength necessary for bound states.
Determined the energies associated with these identified bound states.

Implication

Experimental findings demonstrate bound states in composite bosons influenced by magnetic impurities, indicating complex interactions.

Abstract

We have shown that a composite boson, formed by two fermionic species on a lattice with a strong on-site attraction, can be bound at an one-site static “magnetic” impurity acting oppositely on different species. We have found a manifold of bound states and calculated their energies and critical values of the impurity strength determining the occurrence of these states.

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Cite This Study

Knyazeva et al. (2026) studied this question.

synapsesocial.com/papers/6a7d76652b0e0cff3f63fa7e https://doi.org/10.1134/s0021364026607657

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Bound States of a Lattice Composite Boson on a “Magnetic” Impurity

Key Points

Implication

Abstract

Discussion

Cite This Study

Bound States of a Lattice Composite Boson on a “Magnetic” Impurity

Key Points

Implication

Abstract

Discussion

Cite This Study

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