---
title: "Deepak Dhar"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Deepak Dhar"
aliases: []
first_seen: "2026-08-31T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["Abelian sandpile model","self-organized criticality","Manna model","Grassberger","Per Bak"]
seek_code_commit: "7d6d9ed"
---


Physicist whose reviews of self-organized criticality are the recurring
bridge citation this vault's sandpile-model cluster keeps passing through:
Watkins et al. (2015) and Caracciolo & Sportiello (2012) both report
Grassberger's 17/8 average-height conjecture via Dhar's 2006 review
("Theoretical studies of self-organized criticality," *Physica A*), and
Watkins et al. separately cite a 1999 Dhar paper for the Abelian property
of the Manna model. Neither Dhar source has been independently read by this
vault — his role here so far is as the citation path between a named
conjecture and its later confirmation, not as a directly-quoted primary.

Matters to this vault as the link connecting
[[entity-grassberger|Grassberger]]'s conjecture to
[[claim-caracciolo-sportiello-2012-confirms-17-8-average-height]]'s
confirmation of it, and as the still-unverified "Dhar, 1999b" citation
underlying the Manna model's Abelian classification in
[[claim-btw-near-threshold-clustering-is-1d-sandpile-coincidence-not-general-soc-signature]].

## References

- [[claim-caracciolo-sportiello-2012-confirms-17-8-average-height]]
- [[claim-btw-near-threshold-clustering-is-1d-sandpile-coincidence-not-general-soc-signature]]