Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays

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dc.creatorAngelakis, Dimitris G.
dc.creatorSantos, Marcelo F.
dc.creatorBose, Sougato
dc.date2006-06-20
dc.date2007-07-17
dc.date.accessioned2026-07-07T08:32:46Z
dc.date.available2026-07-07T08:32:46Z
dc.descriptionAs 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.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0606159
dc.identifierhttp://arxiv.org/abs/quant-ph/0606159
dc.identifierPhys. Rev. A (Rap. Com.) 76, 031805 (2007)
dc.identifierdoi:10.1103/PhysRevA.76.031805
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138900
dc.subjectQuantum Physics
dc.titlePhoton blockade induced Mott transitions and XY spin models in coupled cavity arrays
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