dorsal/arxiv
View SchemaDecoherence at absolute zero
| Authors | Supurna Sinha |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0505056 |
| URL | https://arxiv.org/abs/quant-ph/0505056 |
| DOI | 10.1016/S0375-9601(97)00098-4 |
| Journal | Physics Letters A 228 (1997) 1-6 |
Abstract
We present an analytical study of the loss of quantum coherence at absolute zero. Our model consists of a harmonic oscillator coupled to an environment of harmonic oscillators at absolute zero. We find that for an Ohmic bath, the offdiagonal elements of the density matrix in the position representation decay as a power law in time at late times. This slow loss of coherence in the quantum domain is qualitatively different from the exponential decay observed in studies of high temperature environments.
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"abstract": "We present an analytical study of the loss of quantum coherence at absolute\nzero. Our model consists of a harmonic oscillator coupled to an environment of\nharmonic oscillators at absolute zero. We find that for an Ohmic bath, the\noffdiagonal elements of the density matrix in the position representation decay\nas a power law in time at late times. This slow loss of coherence in the\nquantum domain is qualitatively different from the exponential decay observed\nin studies of high temperature environments.",
"arxiv_id": "quant-ph/0505056",
"authors": [
"Supurna Sinha"
],
"categories": [
"quant-ph",
"cond-mat.mes-hall",
"physics.optics"
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"doi": "10.1016/S0375-9601(97)00098-4",
"journal_ref": "Physics Letters A 228 (1997) 1-6",
"title": "Decoherence at absolute zero",
"url": "https://arxiv.org/abs/quant-ph/0505056"
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