---
title: "Ranga Dias"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Ranga Dias"
aliases: []
first_seen: "2026-07-09T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["room-temperature superconductivity","carbonaceous sulfur hydride","Nature retraction","lutetium hydride (2023 retraction)","Jorge Hirsch"]
seek_code_commit: "46c6736"
---


Physicist (University of Rochester) whose two headline claims of
room-temperature superconductivity — carbonaceous sulfur hydride (2020) and
nitrogen-doped lutetium hydride (2023) — were both later retracted by
*Nature* following forensic critiques of the underlying susceptibility data.
Matters to this vault as the central subject of its data-forensics/retraction
cluster: he and his coauthors maintained the raw data supported the original
claims even as *Nature*'s editors and outside critics converged
independently on the same specific mechanism (an undisclosed,
non-reproducible background-subtraction procedure).

## References
- [[claim-hirsch-forensics-drove-dias-superconductivity-retraction]] · [[claim-nature-2022-csh-retraction-cites-undisclosed-background-subtraction]] · [[claim-hirsch-van-der-marel-2022-csh-data-pathological-spline-quantized]] · [[claim-hirsch-modeled-csh-critique-on-2009-debessai-europium-precedent]]
- Related hubs: [[entity-jorge-e-hirsch]] · [[entity-mathew-debessai]] · [[entity-dirk-van-der-marel]]