dorsal/arxiv
View SchemaPhoton blockade induced Mott transitions and XY spin models in coupled cavity arrays
| Authors | Dimitris G. Angelakis, Marcelo F. Santos, Sougato Bose |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606159 |
| URL | https://arxiv.org/abs/quant-ph/0606159 |
| DOI | 10.1103/PhysRevA.76.031805 |
| Journal | Phys. Rev. A (Rap. Com.) 76, 031805 (2007) |
Abstract
As photons do not interact with each other, it is interesting to ask whether photonic systems can be modified to exhibit the phases characteristic of strongly coupled many-body systems. We demonstrate how a Mott insulator type of phase of excitations can arise in an array of coupled electromagnetic cavities, each of which is coupled resonantly to a {\em single} two level system (atom/quantum dot/Cooper pair) and can be individually addressed from outside. In the Mott phase each atom-cavity system has the same integral number of net polaritonic (atomic plus photonic) excitations with photon blockade providing the required repulsion between the excitations in each site. Detuning the atomic and photonic frequencies suppresses this effect and induces a transition to a photonic superfluid. We also show that for zero detuning, the system can simulate the dynamics of many body spin systems.
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"abstract": "As photons do not interact with each other, it is interesting to ask whether\nphotonic systems can be modified to exhibit the phases characteristic of\nstrongly coupled many-body systems. We demonstrate how a Mott insulator type of\nphase of excitations can arise in an array of coupled electromagnetic cavities,\neach of which is coupled resonantly to a {\\em single} two level system\n(atom/quantum dot/Cooper pair) and can be individually addressed from outside.\nIn the Mott phase each atom-cavity system has the same integral number of net\npolaritonic (atomic plus photonic) excitations with photon blockade providing\nthe required repulsion between the excitations in each site. Detuning the\natomic and photonic frequencies suppresses this effect and induces a transition\nto a photonic superfluid. We also show that for zero detuning, the system can\nsimulate the dynamics of many body spin systems.",
"arxiv_id": "quant-ph/0606159",
"authors": [
"Dimitris G. Angelakis",
"Marcelo F. Santos",
"Sougato Bose"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.76.031805",
"journal_ref": "Phys. Rev. A (Rap. Com.) 76, 031805 (2007)",
"title": "Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays",
"url": "https://arxiv.org/abs/quant-ph/0606159"
},
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