Pith Number

pith:2TRXTL4E

pith:2026:2TRXTL4EYHNUOA4D4KZIWCR3QA

not attested not anchored not stored refs resolved

Nodal Topological Superconductivity Driven by Crystalline Antiunitary Symmetry in Altermagnets

Arun Bansil, Xiao Xiao

Crystalline antiunitary symmetry in fourfold altermagnets forbids pure spin-singlet pairing and selects structures yielding emergent chiral symmetries that produce nodal topological superconductivity.

arxiv:2605.13656 v1 · 2026-05-13 · cond-mat.supr-con

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2TRXTL4EYHNUOA4D4KZIWCR3QA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

the native crystalline antiunitary symmetry T C4z generically forbids pure spin-singlet pairing and selects pairing structures that admit Bogoliubov-de Gennes (BdG) Hamiltonians with emergent chiral symmetries. These symmetries further give rise to robust nodal topological phases over broad parameter regimes, including a nodal-point phase hosting Majorana flat bands (MFBs) and two distinct nodal-loop phases with chiral Majorana edge states.

C2weakest assumption

That the dominant pairing interaction in real fourfold altermagnets falls into the symmetry-selected channels that produce the emergent chiral symmetries, without being overwhelmed by competing orders or other pairing symmetries.

C3one line summary

Crystalline antiunitary symmetry in altermagnets selects pairing that produces robust nodal topological superconducting phases with Majorana flat bands and chiral edge states.

References

88 extracted · 88 resolved · 0 Pith anchors

[1] M. Sigrist and K. Ueda, Phenomenological theory of un- conventional superconductivity, Rev. Mod. Phys.63, 239 (1991) 1991

[2] V. P. Mineev and K. V. Samokhin,Introduction to Un- conventional Superconductivity(Gordon and Breach Sci- ence Publishers, Amsterdam, 1999) 1999

[3] M. Sato and Y. Ando, Topological superconductors: a re- view, Reports on Progress in Physics80, 076501 (2017) 2017

[4] Alicea, New directions in the pursuit of majorana fermions in solid state systems, Reports on Progress in Physics75, 076501 (2012) 2012

[5] F. Pientka, A. Keselman, E. Berg, A. Yacoby, A. Stern, and B. I. Halperin, Topological superconductivity in a planar josephson junction, Phys. Rev. X7, 021032 (2017) 2017

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

Direction-selective triplet pairing and spin-edge locking in altermagnetic metals

Receipt and verification

First computed	2026-05-18T02:44:17.391135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4e379af84c1db470383e2b28b0a3b802fbce3ec123c9efd611736db2f2c42bb

Aliases

arxiv: 2605.13656 · arxiv_version: 2605.13656v1 · doi: 10.48550/arxiv.2605.13656 · pith_short_12: 2TRXTL4EYHNU · pith_short_16: 2TRXTL4EYHNUOA4D · pith_short_8: 2TRXTL4E

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2TRXTL4EYHNUOA4D4KZIWCR3QA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d4e379af84c1db470383e2b28b0a3b802fbce3ec123c9efd611736db2f2c42bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf831789cc827f74fe35f2442061784882d667e9885fa7645f38543c0686ac06",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2026-05-13T15:14:50Z",
    "title_canon_sha256": "dfe0d03b8fc3deb9ab1ce03cbcac426d8b7f37d702dde8c6da9755748e1c64a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13656",
    "kind": "arxiv",
    "version": 1
  }
}