Projects per year
Abstract
Superconductivity has been observed in moiré systems such as twisted bilayer graphene, which host flat, dispersionless electronic bands. In parallel, theory work has discovered that superconductivity and superfluidity of flat-band systems can be made possible by the quantum geometry and topology of the band structure. These recent key developments are merging into a flourishing research topic: understanding the possible connection and ramifications of quantum geometry on the induced superconductivity and superfluidity in moiré multilayer and other flat-band systems. This article presents an introduction to how quantum geometry governs superconductivity and superfluidity in platforms including, and beyond, graphene. Ultracold gases are introduced as a complementary platform for quantum geometric effects and a comparison is made to moiré materials. An outlook sketches the prospects of twisted multilayer systems in providing the route to room-temperature superconductivity.
Original language | English |
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Pages (from-to) | 528-542 |
Number of pages | 15 |
Journal | Nature Reviews Physics |
Volume | 4 |
Issue number | 8 |
Early online date | 10 Jun 2022 |
DOIs | |
Publication status | Published - Aug 2022 |
MoE publication type | A2 Review article in a scientific journal |
Keywords
- HUBBARD-MODEL
- EDGE STATES
- FERMI GAS
- INSULATOR
- FRACTION
- DENSITY
- BANDS
Fingerprint
Dive into the research topics of 'Superconductivity, superfluidity and quantum geometry in twisted multilayer systems'. Together they form a unique fingerprint.-
SUPERFLAT: Superfluidity, topology and disorder in lattice models with flat bands
Peotta, S., Swaminathan, K. & Tadros, P.
01/09/2020 → 31/08/2023
Project: Academy of Finland: Other research funding
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SUPERFLAT: Superfluidity, topology and disorder in lattice models with flat bands
01/09/2020 → 31/08/2025
Project: Academy of Finland: Other research funding
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Long-range coherence in nanosystems
Törmä, P., Arjas, K., Kliuiev, P., Kumar, P., Julku, A., Lamponen, E., Pyykkönen, V., Moilanen, A., Topp, G. & Salerno, G.
01/01/2020 → 31/12/2021
Project: Academy of Finland: Other research funding
Activities
- 2 Invited academic talk
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Topological quantum matter with ultracold gases
Sebastiano Peotta (Speaker)
7 Sep 2022Activity: Talk or presentation types › Invited academic talk
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Quantum metric and superfluidity
Sebastiano Peotta (Speaker)
9 Sep 2022Activity: Talk or presentation types › Invited academic talk
File