dorsal/arxiv
View SchemaPerformance Analysis for Brandt's Conclusive Entangling Probe
| Authors | Jeffrey H. Shapiro |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0510009 |
| URL | https://arxiv.org/abs/quant-ph/0510009 |
Abstract
The Fuchs-Peres-Brandt (FPB) probe realizes the most powerful individual attack on Bennett-Brassard 1984 quantum key distribution by means of a single controlled-NOT gate in which Alice's transmitted qubit becomes the control-qubit input, Bob's received qubit is the control-qubit output, and Eve supplies the target-qubit input and measures the target-qubit output. The FPB probe uses the minimum-error-probability projective measurement for discriminating between the target-qubit output states that are perfectly correlated with Bob's sifted bit value when that bit is correctly received. This paper analyzes a recently proposed modification of the FPB attack in which Eve's projective measurement is replaced by a probability operator-valued measurement chosen to unambiguously discriminate between the same two target-qubit output states.
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"date_created": "2026-03-02T18:02:19.965000Z",
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"abstract": "The Fuchs-Peres-Brandt (FPB) probe realizes the most powerful individual\nattack on Bennett-Brassard 1984 quantum key distribution by means of a single\ncontrolled-NOT gate in which Alice\u0027s transmitted qubit becomes the\ncontrol-qubit input, Bob\u0027s received qubit is the control-qubit output, and Eve\nsupplies the target-qubit input and measures the target-qubit output. The FPB\nprobe uses the minimum-error-probability projective measurement for\ndiscriminating between the target-qubit output states that are perfectly\ncorrelated with Bob\u0027s sifted bit value when that bit is correctly received.\nThis paper analyzes a recently proposed modification of the FPB attack in which\nEve\u0027s projective measurement is replaced by a probability operator-valued\nmeasurement chosen to unambiguously discriminate between the same two\ntarget-qubit output states.",
"arxiv_id": "quant-ph/0510009",
"authors": [
"Jeffrey H. Shapiro"
],
"categories": [
"quant-ph"
],
"title": "Performance Analysis for Brandt\u0027s Conclusive Entangling Probe",
"url": "https://arxiv.org/abs/quant-ph/0510009"
},
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"source": {
"execution_id": "91d40d26-89af-4108-9dce-a6f8cbbfa1b8",
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"type": "Model",
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