dorsal/arxiv
View SchemaQuantum Theory of Two-Photon Wavepacket Interference in a Beam Splitter
| Authors | Kaige Wang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311011 |
| URL | https://arxiv.org/abs/quant-ph/0311011 |
Abstract
We study a general theory on the interference of a two-photon wavepacket in a beam splitter. The theory is carried out in the Schr\"{o}dinger picture so that the quantum nature of the two-photon interference is explicitly presented. We find that the topological symmetry of the probability-amplitude spectrum of the two-photon wavepacket dominates the manners of two-photon interference which are distinguished according to increasing and decreasing the coincidence probability for the absence of interference. However, two-photon entanglement can be witnessed by the interference manner. We demonstrate the necessary and sufficient conditions for the perfect two-photon interference. For a two-photon entangled state with an anti-symmetric spectrum, it passes a 50/50 beam splitter with the perfect transparency. The theory contributes an unified understanding to a variety of the two-photon interference effects.
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"abstract": "We study a general theory on the interference of a two-photon wavepacket in a\nbeam splitter. The theory is carried out in the Schr\\\"{o}dinger picture so that\nthe quantum nature of the two-photon interference is explicitly presented. We\nfind that the topological symmetry of the probability-amplitude spectrum of the\ntwo-photon wavepacket dominates the manners of two-photon interference which\nare distinguished according to increasing and decreasing the coincidence\nprobability for the absence of interference. However, two-photon entanglement\ncan be witnessed by the interference manner. We demonstrate the necessary and\nsufficient conditions for the perfect two-photon interference. For a two-photon\nentangled state with an anti-symmetric spectrum, it passes a 50/50 beam\nsplitter with the perfect transparency. The theory contributes an unified\nunderstanding to a variety of the two-photon interference effects.",
"arxiv_id": "quant-ph/0311011",
"authors": [
"Kaige Wang"
],
"categories": [
"quant-ph"
],
"title": "Quantum Theory of Two-Photon Wavepacket Interference in a Beam Splitter",
"url": "https://arxiv.org/abs/quant-ph/0311011"
},
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