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Quantization of top...
Quantization of topological indices in critical chains at low temperatures
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- Balabanov, Oleksandr (author)
- Stockholms universitet,Fysikum,Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden.
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- Ortega-Taberner, Carlos (author)
- Stockholms universitet,Fysikum,Nordiska institutet för teoretisk fysik (Nordita),Nordita SU
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- Hermanns, Maria (author)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Department of Physics, Stockholm University, AlbaNova University Center, Stockholm, SE-106 91, Sweden,Fysikum,Nordiska institutet för teoretisk fysik (Nordita)
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(creator_code:org_t)
- American Physical Society (APS), 2022
- 2022
- English.
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In: Physical Review B. - : American Physical Society (APS). - 2469-9950 .- 2469-9969. ; 106:4
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Various types of topological phenomena at criticality are currently under active research. In this paper we suggest to generalize the known topological quantities to finite temperatures, allowing us to consider gapped and critical (gapless) systems on the same footing. It is then discussed that the quantization of the topological indices, also at critically, is retrieved by taking the low-temperature limit. This idea is explicitly illustrated on a simple case study of chiral critical chains where the quantization is shown analytically and verified numerically. The formalism is also applied for studying robustness of the topological indices to various types of disordering perturbations.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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