dorsal/arxiv
View SchemaHighly Nonclassical Quantum States and Environment Induced Decoherence
| Authors | Peter Foldi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0406232 |
| URL | https://arxiv.org/abs/quant-ph/0406232 |
Abstract
In this thesis concrete quantum systems are investigated in the framework of the environment induced decoherence. The focus is on the dynamics of highly nonclassical quantum states, the Wigner function of which are negative over some regions of their domains. One of the chosen physical systems is a diatomic molecule, where the potential energy of the nuclei is an anharmonic function of their distance. A system of two-level atoms, which can be important from the viewpoint of quantum information technology, is also investigated. A method is described that is valid in both systems and can determine the characteristic time of the decoherence in a dynamical way. The direction of the decoherence and its relation to energy dissipation is also studied. Finally, a scheme is proposed that can prepare decoherence-free states using the experimental techniques presently available.
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"abstract": "In this thesis concrete quantum systems are investigated in the framework of\nthe environment induced decoherence. The focus is on the dynamics of highly\nnonclassical quantum states, the Wigner function of which are negative over\nsome regions of their domains. One of the chosen physical systems is a diatomic\nmolecule, where the potential energy of the nuclei is an anharmonic function of\ntheir distance. A system of two-level atoms, which can be important from the\nviewpoint of quantum information technology, is also investigated. A method is\ndescribed that is valid in both systems and can determine the characteristic\ntime of the decoherence in a dynamical way. The direction of the decoherence\nand its relation to energy dissipation is also studied. Finally, a scheme is\nproposed that can prepare decoherence-free states using the experimental\ntechniques presently available.",
"arxiv_id": "quant-ph/0406232",
"authors": [
"Peter Foldi"
],
"categories": [
"quant-ph"
],
"title": "Highly Nonclassical Quantum States and Environment Induced Decoherence",
"url": "https://arxiv.org/abs/quant-ph/0406232"
},
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