pith:QZCX5E6N
Universal dynamics from a single-particle dark state
A single-particle dark state at zero momentum in a dissipative spin chain leads to universal many-body scaling dynamics at long times.
arxiv:2605.16494 v1 · 2026-05-15 · cond-mat.quant-gas · cond-mat.stat-mech · quant-ph
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Claims
While the zero-momentum mode is dark at the single-particle level, it decays slowly as 1/log t as it becomes dressed by other modes through a dissipation-induced nonlinearity. We demonstrate that the momentum distribution takes a universal scaling form in k sqrt(t), and the total density decays as 1/sqrt(t) log t.
The spin chain with correlated dissipation on neighboring sites admits a single-particle dark state at zero momentum whose dressing by other modes through dissipation-induced nonlinearity dominates the long-time many-body dynamics.
A single-particle dark state in a dissipating spin chain induces universal long-time many-body dynamics with momentum distribution scaling as k sqrt(t) and density decaying as 1/(sqrt(t) log t).
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| First computed | 2026-05-20T00:02:25.335609Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
86457e93cd68292386233aa8da62877a94bee0d0e98d246fdfff63a2bee82dbb
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curl -sH 'Accept: application/ld+json' https://pith.science/pith/QZCX5E6NNAUSHBRDHKUNUYUHPK \
| 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())"
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Canonical record JSON
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