# Superconductivity & Quantum Materials

Mechanisms and materials of superconductivity: cuprates, nickelates, hydrides, moire systems, topological superconductors, applied HTS and computational discovery.

## Topics

- [Cuprates & the Pairing Mechanism](https://space-kitty.com/topics/cuprate-mechanism) (235 papers): High-Tc cuprates, the Hubbard model and its numerics, the pseudogap, strange-metal transport, charge order and d-wave pairing.
- [Nickelate & Iron-Based Superconductors](https://space-kitty.com/topics/nickelates-iron-based) (236 papers): Infinite-layer and Ruddlesden-Popper nickelates (including La3Ni2O7 under pressure and ambient-pressure films) and iron pnictides and chalcogenides.
- [Superconducting Hydrides Under Pressure](https://space-kitty.com/topics/hydride-superconductors) (237 papers): H3S, LaH10 and ternary hydrides; diamond-anvil-cell measurement challenges, reproducibility disputes and the search for metastable low-pressure hydrides.
- [Room-Temperature Superconductivity Claims & Replication](https://space-kitty.com/topics/room-temperature-claims) (232 papers): High-profile claims (LK-99, retracted hydride papers) and replication efforts; the evidentiary standard of zero resistance plus a bulk Meissner effect.
- [Moire & 2D Superconductivity](https://space-kitty.com/topics/moire-superconductivity) (245 papers): Magic-angle graphene, twisted transition-metal dichalcogenides, rhombohedral multilayer graphene and chiral or unconventional 2D superconductivity.
- [Topological Superconductivity & Majorana Modes](https://space-kitty.com/topics/topological-superconductivity) (240 papers): Majorana zero modes in nanowires, Kitaev chains, vortex-bound states in iron-based materials and the reproducibility debate.
- [Applied Superconductivity & HTS Magnets](https://space-kitty.com/topics/applied-superconductivity) (240 papers): REBCO coated conductors, 20-tesla-class fusion magnets, MRI, power cables, superconducting RF cavities and superconducting electronics.
- [Computational & AI-Driven Superconductor Discovery](https://space-kitty.com/topics/superconductor-discovery) (256 papers): Ab initio Eliashberg predictions, machine-learning Tc models and high-throughput screening for new conventional and unconventional superconductors.
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