# [SCI-Idea] Room-Temperature Superconductivity
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**Room-temperature superconductivity** — a material conducting electricity with zero resistance at or near ambient conditions — would be the most transformative materials discovery in the history of physics, eliminating the cryogenic infrastructure that currently limits superconducting technology to specialised applications.
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## Overview
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Conventional superconductors require liquid-helium cooling (4 K). High-Tc cuprates (Bednorz & Müller 1986) raised the bar to ~135 K. Hydrogen-rich compounds under extreme pressure now show Tc ~250 K (LaH₁₀ at 250 GPa, Drozdov et al. 2019; CSH at 288 K under 267 GPa). The grand challenge is achieving superconductivity at ambient pressure and room temperature. If achieved, it would immediately enable: lossless global power transmission (USD 300B/year is lost to resistive heating in today's grids), compact fusion reactor magnets without cryostats, room-temperature quantum computers, and high-speed magnetic levitation transport without refrigeration.
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AI-guided materials discovery is accelerating the search: Google DeepMind's GNoME (2023) predicted 380,000 stable new crystal structures. The LK-99 episode (2023 South Korean claim, quickly refuted) demonstrated the global excitement and the rigour required to confirm such a discovery.
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## Current State
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- **Pressure hydrides**: Tc ~250–288 K confirmed, but require multi-megabar pressures (extreme diamonds)
- **Ambient-pressure candidates**: no confirmed RT-SC at ambient pressure; multiple disputed claims
- **AI materials search**: increasingly targeting metastable high-Tc compounds synthesisable without extreme pressure
- **Key labs**: Mikhail Eremets (Max Planck Mainz), Ranga Dias (Rochester, claims disputed), Georg Hirsch (UCSB theory), Google DeepMind (GNoME), MIT (Checkelsky group)
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## Economic Potential
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Lossless power transmission alone: USD 300B+/year in recovered electricity losses. Enabling compact fusion reactors (no helium cooling): USD 3.5T/year electricity market addressable. Room-temperature superconducting quantum computers: accelerating USD 100B+ QC market by a decade. Magnetic levitation transport: USD 500B+/year infrastructure. Combined economic impact rivals any prior materials discovery.
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## Discovery Character
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**Surprise level**: Extreme — despite 60 years of systematic search, no consensus material exists. A genuine ambient-pressure RT-SC would be immediately verifiable worldwide and would trigger the most rapid Nobel Prize in history.
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**Mode**: Systematic-AI-assisted, with serendipity possible at any moment. History shows that superconductivity breakthroughs (Onnes 1911, Bednorz-Müller 1987, LaH₁₀ 2019) have each arrived from unexpected material classes. AI-guided synthesis may produce a candidate from a class nobody had considered.
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## What This Enables
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- **[TECH-Idea] Fusion Power Plants** — room-temperature superconducting magnets would eliminate the cryogenic systems that dominate fusion reactor complexity and cost.
- **[TECH-Idea] Quantum Internet & Quantum Cryptography** — room-temperature superconducting quantum repeaters would make a global quantum network feasible without dilution refrigerators at every node.
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# Parents
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* [SCI] BCS Superconductivity⏎