TY - JOUR
T1 - Open quantum dots-probing the quantum to classical transition
AU - Ferry, D. K.
AU - Burke, A. M.
AU - Akis, R.
AU - Brunner, R.
AU - Day, T. E.
AU - Meisels, R.
AU - Kuchar, F.
AU - Bird, J. P.
AU - Bennett, B. R.
PY - 2011
Y1 - 2011
N2 - Quantum dots provide a natural system in which to study both quantum and classical features of transport. As a closed testbed, they provide a natural system with a very rich set of eigenstates. When coupled to the environment through a pair of quantum point contacts, each of which passes several modes, the original quantum environment evolves into a set of decoherent and coherent states, which classically would compose a mixed phase space. The manner of this breakup is governed strongly by Zurek's decoherence theory, and the remaining coherent states possess all the properties of his pointer states. These states are naturally studied via traditional magnetotransport at low temperatures. More recently, we have used scanning gate (conductance) microscopy to probe the nature of the coherent states, and have shown that families of states exist through the spectrum in a manner consistent with quantum Darwinism. In this review, we discuss the nature of the various states, how they are formed, and the signatures that appear in magnetotransport and general conductance studies.
AB - Quantum dots provide a natural system in which to study both quantum and classical features of transport. As a closed testbed, they provide a natural system with a very rich set of eigenstates. When coupled to the environment through a pair of quantum point contacts, each of which passes several modes, the original quantum environment evolves into a set of decoherent and coherent states, which classically would compose a mixed phase space. The manner of this breakup is governed strongly by Zurek's decoherence theory, and the remaining coherent states possess all the properties of his pointer states. These states are naturally studied via traditional magnetotransport at low temperatures. More recently, we have used scanning gate (conductance) microscopy to probe the nature of the coherent states, and have shown that families of states exist through the spectrum in a manner consistent with quantum Darwinism. In this review, we discuss the nature of the various states, how they are formed, and the signatures that appear in magnetotransport and general conductance studies.
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U2 - 10.1088/0268-1242/26/4/043001
DO - 10.1088/0268-1242/26/4/043001
M3 - Review article
AN - SCOPUS:84920604525
SN - 0268-1242
VL - 26
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
IS - 4
ER -