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pith:LSNDHDEY

pith:2026:LSNDHDEY4FDJ63MO2RFBNDKO2E

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Entanglement Dynamics of Separable Squeezed States in Finite Memory Structured Reservoir

Austen Couvertier, Ting Yu

Separable squeezed vacuum states generate and control entanglement in structured reservoirs through non-Markovian mechanisms unavailable in Markovian baths.

arxiv:2605.15426 v1 · 2026-05-14 · quant-ph · physics.optics

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Claims

C1strongest claim

Three mechanisms absent in Markovian dynamics are identified: a detuning condition that freezes entanglement trajectories across reservoir correlation times; birth, death, and revival of entanglement from orthogonal inputs; and integer-locked beating with square-wave oscillations produced by periodic detuning. All mechanisms persist at finite temperature with deviations bounded within 5% in cryogenic regimes and 20% at moderate occupations.

C2weakest assumption

The analysis relies on an approximate Non-Markovian quantum state diffusion (QSD) method together with finite-temperature pseudomode embeddings whose accuracy for the reported entanglement measures is not independently benchmarked against exact solutions or full master-equation numerics within the provided abstract.

C3one line summary

Separable squeezed inputs in finite-memory structured reservoirs produce detuning-locked entanglement freezing, birth-death-revival cycles, and integer-locked beating oscillations that persist with small deviations at cryogenic and moderate temperatures.

References

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[1] Zero-Temperature entanglement trajectories We first examine the Markovian limit in which two un- coupled bosonic modes couple symmetrically to a memo- ryless reservoir, with entanglement quantified by

[2] Figure 2 shows that aligned inputs retain nonzero entanglement up to ¯n≈1.5, while weakly orthogonal inputs become separable at ¯n≈0.2

[3] Figure 3(a) compares the entan- glement trajectories forγ/κ= 0.5 (blue) andγ/κ= 5 (red)

[4] Figure 4 shows the relative de- viation ofE N(κt) as a function of bath occupation ¯n

[5] Figure 5(a) shows that the entanglement response depends sensitively on detuning

Formal links

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Receipt and verification

First computed	2026-05-20T00:00:58.000584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c9a338c98e1469f6d8ed44a168d4ed10890aac3f0904193adaa2df4695d1eb2

Aliases

arxiv: 2605.15426 · arxiv_version: 2605.15426v1 · doi: 10.48550/arxiv.2605.15426 · pith_short_12: LSNDHDEY4FDJ · pith_short_16: LSNDHDEY4FDJ63MO · pith_short_8: LSNDHDEY

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curl -sH 'Accept: application/ld+json' https://pith.science/pith/LSNDHDEY4FDJ63MO2RFBNDKO2E \
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  | 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: 5c9a338c98e1469f6d8ed44a168d4ed10890aac3f0904193adaa2df4695d1eb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8264ccb44293b9404e0ff65ab97a135479dedc2103e8a34127bf5af2227729ae",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-14T21:16:38Z",
    "title_canon_sha256": "8df8d67e9c2395a82e2811a5e271bae07fff2cb0283717c4a81f1f72ae1ec071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15426",
    "kind": "arxiv",
    "version": 1
  }
}