dorsal/arxiv
View SchemaPhoton-photon correlations and entanglement in doped photonic crystals
| Authors | David Petrosyan, Gershon Kurizki |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0010106 |
| URL | https://arxiv.org/abs/quant-ph/0010106 |
| DOI | 10.1103/PhysRevA.64.023810 |
Abstract
We consider a photonic crystal (PC) doped with four-level atoms whose intermediate transition is coupled near-resonantly with a photonic band-gap edge. We show that two photons, each coupled to a different atomic transition in such atoms, can manifest strong phase or amplitude correlations: One photon can induce a large phase shift on the other photon or trigger its absorption and thus operate as an ultrasensitive nonlinear photon-switch. These features allow the creation of entangled two-photon states and have unique advantages over previously considered media: (i) no control lasers are needed; (ii) the system parameters can be chosen to cause full two-photon entanglement via absorption; (iii) a number of PCs can be combined in a network.
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"abstract": "We consider a photonic crystal (PC) doped with four-level atoms whose\nintermediate transition is coupled near-resonantly with a photonic band-gap\nedge. We show that two photons, each coupled to a different atomic transition\nin such atoms, can manifest strong phase or amplitude correlations: One photon\ncan induce a large phase shift on the other photon or trigger its absorption\nand thus operate as an ultrasensitive nonlinear photon-switch. These features\nallow the creation of entangled two-photon states and have unique advantages\nover previously considered media: (i) no control lasers are needed; (ii) the\nsystem parameters can be chosen to cause full two-photon entanglement via\nabsorption; (iii) a number of PCs can be combined in a network.",
"arxiv_id": "quant-ph/0010106",
"authors": [
"David Petrosyan",
"Gershon Kurizki"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.64.023810",
"title": "Photon-photon correlations and entanglement in doped photonic crystals",
"url": "https://arxiv.org/abs/quant-ph/0010106"
},
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