The single-point Berry phase in condensed-matter physics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00566328" target="_blank" >RIV/68378271:_____/22:00566328 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1751-8121/aca84b" target="_blank" >https://doi.org/10.1088/1751-8121/aca84b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1751-8121/aca84b" target="_blank" >10.1088/1751-8121/aca84b</a>

Result language
angličtina
Original language name
The single-point Berry phase in condensed-matter physics
Original language description
The Berry phase plays an outstanding role in condensed-matter physics, where it provides the main entry for defining and computing a key observable: macroscopic electrical polarization. This phase obtains as a loop integral in reciprocal space, which has the topology of a torus. I show here that in some circumstances the loop may be contracted to a point, and polarization can be computed in practice from a single Hamiltonian diagonalization.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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