Pith Number

pith:7F3YSARJ

pith:2025:7F3YSARJXJL3LWDLMU3KFDNJD5

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Superradiant Interactions for Relic Detection with Entangled Nuclear Spins

Asimina Arvanitaki, Marios Galanis, Onur Hosten, Savas Dimopoulos

Macroscopic nuclear spin ensembles in coherent states enhance interaction rates with cosmic relics by a factor of N squared through collective superradiant effects.

arxiv:2508.20520 v2 · 2025-08-28 · hep-ph · quant-ph

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Claims

C1strongest claim

macroscopic nuclear spin ensembles prepared in coherent spin states can dramatically enhance the interaction rates of weakly interacting cosmic relics-such as dark matter and the cosmic neutrino background-through collective quantum effects analogous to Dicke superradiance, where the de-excitation and excitation rates scale as the square of the number of spins, N^2

C2weakest assumption

squeezing must outpace spin relaxation and dephasing, which favors macroscopic ensembles and high-quality superconducting circuits with Q ~ 10^8-10^9 (stated as the condition required for the protocol to succeed)

C3one line summary

A squeezing protocol is proposed for nuclear spin ensembles coupled to superconducting circuits to achieve up to 48 dB squeezing and enhance superradiant interactions for relic detection.

References

70 extracted · 70 resolved · 3 Pith anchors

[1] A. Arvanitaki, S. Dimopoulos, and M. Galanis, Super- radiant interactions of the cosmic neutrino background, axions, dark matter, and reactor neutrinos, Phys. Rev. D 111, 055015 (2025), arXiv:2408.040 2025

[2] O. Hosten, N. J. Engelsen, R. Krishnakumar, and M. A. Kasevich, Measurement noise 100 times lower than the quantum-projection limit using entangled atoms, Nature 529, 505 (2016) 2016

[3] K. C. Cox, G. P. Greve, J. M. Weiner, and J. K. Thomp- son, Deterministic squeezed states with collective mea- surements and feedback, Phys. Rev. Lett. 116, 093602 (2016) 2016

[4] L. Pezz` e, A. Smerzi, M. K. Oberthaler, R. Schmied, and P. Treutlein, Quantum metrology with nonclassical states of atomic ensembles, Rev. Mod. Phys. 90, 035005 (2018) 2018

[5] S. S. Szigeti, O. Hosten, and S. A. Haine, Improving cold- atom sensors with quantum entanglement: Prospects and challenges, Applied Physics Letters 118 (2021) 2021

Formal links

2 machine-checked theorem links

Cited by

2 papers in Pith

Entanglement Requirements for Coherent Enhancement in Detectors

Gradient-Produced Neutrinos

Receipt and verification

First computed	2026-07-03T00:16:50.414047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f977890229ba57b5d86b6536a28da91f49ea2a7b40c77feb449ed7451a0ae495

Aliases

arxiv: 2508.20520 · arxiv_version: 2508.20520v2 · doi: 10.48550/arxiv.2508.20520 · pith_short_12: 7F3YSARJXJL3 · pith_short_16: 7F3YSARJXJL3LWDL · pith_short_8: 7F3YSARJ

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7F3YSARJXJL3LWDLMU3KFDNJD5 \
  | 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: f977890229ba57b5d86b6536a28da91f49ea2a7b40c77feb449ed7451a0ae495

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52e8dfbe73aeafc230354b88e92e1e52910b9a9ae253413b280283af7368f87b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-08-28T08:01:03Z",
    "title_canon_sha256": "0f4522657c41c87b8d7da1bd348f6e9407e2620a57021348537b943f3561c853"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.20520",
    "kind": "arxiv",
    "version": 2
  }
}