Flat-band engineering of quasi-one-dimensional systems via supersymmetric transformations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00598962" target="_blank" >RIV/61389005:_____/24:00598962 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.109.245406" target="_blank" >https://doi.org/10.1103/PhysRevB.109.245406</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.109.245406" target="_blank" >10.1103/PhysRevB.109.245406</a>

Result language
angličtina
Original language name
Flat-band engineering of quasi-one-dimensional systems via supersymmetric transformations
Original language description
We introduce a systematic method to spectrally design quasi-one-dimensional crystal models described by the Dirac equation in the low-energy regime. The method is based on the supersymmetric transformation applied to an initially known pseudo-spin-1/2 model. This allows one to extend the corresponding supersymmetric partner so that the new model describes a pseudo-spin-1 system. The spectral design allows the introduction of a flat band and discrete energies at will into the new model. The results are illustrated in three examples where the Su-Schriefer-Heeger chain is locally converted into a stub lattice.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/EH22_008%2F0004558" target="_blank" >EH22_008/0004558: Advanced MUltiscaLe materials for key Enabling Technologies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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