pith:V2RHNA2M
Coherent Nonreciprocal Valley Transport in Dirac/Weyl Semimetals
A single electrostatic barrier lacking inversion symmetry drives coherent nonreciprocal transport in Dirac and Weyl channels through geometry alone.
arxiv:2605.07189 v2 · 2026-05-08 · cond-mat.mes-hall
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Record completeness
Claims
a single electrostatic barrier whose shape lacks inversion symmetry can drive coherent nonreciprocal transport in a Dirac or Weyl channel without any of these ingredients. The mechanism is geometric: across a barrier with two qualitatively distinct refraction interfaces (one vertical and one oblique), forward- and backward-propagating wave packets experience different Fermi-surface-mismatch sequences at the entrance and exit faces.
That the observed nonreciprocity and valley effects arise solely from the geometric sequence of interface types in the wave-packet simulations and are not influenced by unstated numerical artifacts, material-specific scattering, or other unmodeled effects.
An inversion-asymmetric triangular electrostatic barrier creates coherent nonreciprocal valley transport in Dirac/Weyl channels via distinct refraction sequences at vertical and oblique interfaces.
Formal links
Receipt and verification
| First computed | 2026-05-20T00:03:14.683654Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
aea276834c71f80553946f860ba086010f34acac42cb3a2b8238b0768a719045
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/V2RHNA2MOH4AKU4UN6DAXIEGAE \
| 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: aea276834c71f80553946f860ba086010f34acac42cb3a2b8238b0768a719045
Canonical record JSON
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