dorsal/arxiv
View SchemaQuantum dense coding using three qubits
| Authors | Jose L. Cereceda |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0105096 |
| URL | https://arxiv.org/abs/quant-ph/0105096 |
Abstract
We consider a situation in which two parties, Alice and Bob, share a 3-qubit system coupled in an initial maximally entangled, GHZ state. By manipulating locally two of the qubits, Alice can prepare any one of the eight 3-qubit GHZ states. Thus the sending of Alice's two qubits to Bob, entails 3 bits of classical information which can be recovered by Bob by means of a measurement distinguishing the eight (orthonormal) GHZ states. This contrasts with the 2-qubit case, in which Alice can prepare any of the four Bell states by acting locally only on one of the qubits.
{
"annotation_id": "5cc32d5a-7ae3-4aa4-b59d-2daae4610736",
"date_created": "2026-03-02T18:01:44.800000Z",
"date_modified": "2026-03-02T18:01:44.800000Z",
"file_hash": "1fc883f23bbc97812dc7d6d44449ee85a37fd799a9d864892f29f02140f3d66f",
"private": false,
"record": {
"abstract": "We consider a situation in which two parties, Alice and Bob, share a 3-qubit\nsystem coupled in an initial maximally entangled, GHZ state. By manipulating\nlocally two of the qubits, Alice can prepare any one of the eight 3-qubit GHZ\nstates. Thus the sending of Alice\u0027s two qubits to Bob, entails 3 bits of\nclassical information which can be recovered by Bob by means of a measurement\ndistinguishing the eight (orthonormal) GHZ states. This contrasts with the\n2-qubit case, in which Alice can prepare any of the four Bell states by acting\nlocally only on one of the qubits.",
"arxiv_id": "quant-ph/0105096",
"authors": [
"Jose L. Cereceda"
],
"categories": [
"quant-ph"
],
"title": "Quantum dense coding using three qubits",
"url": "https://arxiv.org/abs/quant-ph/0105096"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "18a82137-bae6-4cce-9019-8aa7ec875eb9",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}