{
  "annotation_id": "46fc2b34-ea0a-4626-b25c-c26fa9c174b1",
  "date_created": "2026-03-02T18:02:27.227000Z",
  "date_modified": "2026-03-02T18:02:27.227000Z",
  "file_hash": "1828b9ecdeaa27b275aeacf088e536662dcf8e7f073d117061b939685863a271",
  "private": false,
  "record": {
    "abstract": "We study the effects of losses on the entanglement created between two\nseparate atomic gases by optical probing and homodyne detection of the\ntransmitted light. The system is well-described in the Gaussian state\nformulation. Analytical results quantifying the degree of entanglement between\nthe two gases are derived and compared with the entanglement in a pair of light\npulses generated by an EPR source. For low (high) transmission losses the\nhighest degree of entanglement is obtained by probing with squeezed\n(antisqueezed) light. In an asymmetric setup where light is only sent one way\nthrough the atomic samples, we find that the logarithmic negativity of\nentanglement attains a constant value $-\\log_2(N)$ with $N=1/3$ irrespectively\nof the loss along the transmission line.",
    "arxiv_id": "quant-ph/0603265",
    "authors": [
      "Lars Bojer Madsen",
      "Klaus Molmer"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Entanglement between remote continuous variable quantum systems: effects   of transmission loss",
    "url": "https://arxiv.org/abs/quant-ph/0603265"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "959ff0a8-6bc6-4fec-9c11-24287f128453",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}