Source:http://linkedlifedata.com/resource/pubmed/id/19392388
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
13
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pubmed:dateCreated |
2009-4-27
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pubmed:abstractText |
Understanding the charging of exceptionally narrow levels in quantum dots in the presence of interactions remains a challenge within mesoscopic physics. We address this fundamental question in the generic model of a narrow level capacitively coupled to a broad one. Using bosonization we show that for arbitrary capacitive coupling charging can be described by an analogy to the magnetization in the anisotropic Kondo model, featuring a low-energy crossover scale that depends in a power-law fashion on the tunneling amplitude to the level. Explicit analytical expressions for the exponent are derived and confirmed by detailed numerical and functional renormalization-group calculations.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0031-9007
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
3
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pubmed:volume |
102
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
136805
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pubmed:year |
2009
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pubmed:articleTitle |
Quantum criticality perspective on the charging of narrow quantum-dot levels.
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pubmed:affiliation |
Faculty of Physics and Mathematics, University of Latvia, Ze??u street 8, Riga LV-1002, Latvia.
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pubmed:publicationType |
Journal Article
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