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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2009-4-27
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.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Apr
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
136805
pubmed:year
2009
pubmed:articleTitle
Quantum criticality perspective on the charging of narrow quantum-dot levels.
pubmed:affiliation
Faculty of Physics and Mathematics, University of Latvia, Ze??u street 8, Riga LV-1002, Latvia.
pubmed:publicationType
Journal Article