| Download | - View final version: Manifestation of the quantum metric in chiral lattice systems (PDF, 1.3 MiB)
- View supplementary information: Manifestation of the quantum metric in chiral lattice systems (PDF, 3.3 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1038/s42005-024-01746-y |
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| Author | Search for: Di Colandrea, FrancescoORCID identifier: https://orcid.org/0000-0002-4863-1448; Search for: Dehghan, Nazanin1ORCID identifier: https://orcid.org/0009-0007-0954-5073; Search for: Cardano, FilippoORCID identifier: https://orcid.org/0000-0002-7828-3819; Search for: D'Errico, Alessio1ORCID identifier: https://orcid.org/0000-0002-6964-4328; Search for: Karimi, Ebrahim1ORCID identifier: https://orcid.org/0000-0002-8168-7304 |
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| Affiliation | - National Research Council of Canada. Quantum and Nanotechnologies
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| Format | Text, Article |
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| Subject | quantum simulation; topological insulators |
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| Abstract | Recent years have seen a surge in research on the role of quantum geometry in condensed matter physics. For instance, the Aharonov-Bohm effect is a physical phenomenon where the vector potential induces a phase shift of electron wavepackets in regions with zero magnetic fields due to an obstruction in space associated with a magnetic flux. A similar effect can be observed in solid-state systems, where the topology of the Berry connection can influence electron dynamics. These are paradigmatic examples of how the dynamics can be affected by the system’s geometry. Here, we show that in chiral-symmetric processes the quantum metric has a measurable effect on the mean chiral displacement of delocalized wavefunctions. This finding is supported by a photonic experiment realizing a topological quantum walk and demonstrates an effect that can be attributed directly to the geometry of the state space. |
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| Publication date | 2024-08-05 |
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| Publisher | Springer Nature |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 42ef0110-cd89-4e3c-9489-e31a05a38b1c |
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| Record created | 2025-04-02 |
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| Record modified | 2025-04-02 |
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