Finite-temperature conductance signatures of quantum criticality in double quantum dots

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dc.creatorda Silva, Luis G. Dias
dc.creatorIngersent, Kevin
dc.creatorSandler, Nancy
dc.creatorUlloa, Sergio
dc.date2008-04-04
dc.date2008-10-12
dc.date.accessioned2026-07-07T10:08:57Z
dc.date.available2026-07-07T10:08:57Z
dc.descriptionWe study the linear conductance through a double-quantum-dot system consisting of an interacting dot in its Kondo regime and an effectively noninteracting dot, connected in parallel to metallic leads. Signatures in the zero-bias conductance at temperatures $T>0$ mark a pair of quantum (T=0) phase transitions between a Kondo-screened many-body ground state and non-Kondo ground states. Notably, the conductance features become more prominent with increasing $T$, which enhances the experimental prospects for accessing the quantum-critical region through tuning of gate voltages in a single device.
dc.description4 pages, 3 figures, published in PRB
dc.identifierhttps://arxiv.org/abs/0804.0805
dc.identifierhttp://arxiv.org/abs/0804.0805
dc.identifierPhys. Rev. B 78, 153304 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.153304
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171175
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleFinite-temperature conductance signatures of quantum criticality in double quantum dots
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