dorsal/arxiv
View SchemaMacroscopic quantum jumps and entangled state preparation
| Authors | Jeremy Metz, Almut Beige |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0702095 |
| URL | https://arxiv.org/abs/quant-ph/0702095 |
| DOI | 10.1103/PhysRevA.76.022331 |
| Journal | Phys. Rev. A 76, 022331 (2007). |
Abstract
Recently we predicted a random blinking, i.e. macroscopic quantum jumps, in the fluorescence of a laser-driven atom-cavity system [Metz et al., Phys. Rev. Lett. 97, 040503 (2006)]. Here we analyse the dynamics underlying this effect in detail and show its robustness against parameter fluctuations. Whenever the fluorescence of the system stops, a macroscopic dark period occurs and the atoms are shelved in a maximally entangled ground state. The described setup can therefore be used for the controlled generation of entanglement. Finite photon detector efficiencies do not affect the success rate of the state preparation, which is triggered upon the observation of a macroscopic fluorescence signal. High fidelities can be achieved even in the vicinity of the bad cavity limit due to the inherent role of dissipation in the jump process.
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"abstract": "Recently we predicted a random blinking, i.e. macroscopic quantum jumps, in\nthe fluorescence of a laser-driven atom-cavity system [Metz et al., Phys. Rev.\nLett. 97, 040503 (2006)]. Here we analyse the dynamics underlying this effect\nin detail and show its robustness against parameter fluctuations. Whenever the\nfluorescence of the system stops, a macroscopic dark period occurs and the\natoms are shelved in a maximally entangled ground state. The described setup\ncan therefore be used for the controlled generation of entanglement. Finite\nphoton detector efficiencies do not affect the success rate of the state\npreparation, which is triggered upon the observation of a macroscopic\nfluorescence signal. High fidelities can be achieved even in the vicinity of\nthe bad cavity limit due to the inherent role of dissipation in the jump\nprocess.",
"arxiv_id": "quant-ph/0702095",
"authors": [
"Jeremy Metz",
"Almut Beige"
],
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"doi": "10.1103/PhysRevA.76.022331",
"journal_ref": "Phys. Rev. A 76, 022331 (2007).",
"title": "Macroscopic quantum jumps and entangled state preparation",
"url": "https://arxiv.org/abs/quant-ph/0702095"
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