Charge sensing of excited states in an isolated double quantum dot
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Charge sensing of excited states in an isolated double quantum dot. / C. Johnson, A.; M. Marcus, C.; P. Hanson, M.; C. Gossard, A.
I: Physical Review B, Bind 71, Nr. 11, 31.12.2005, s. 115333.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Charge sensing of excited states in an isolated double quantum dot
AU - C. Johnson, A.
AU - M. Marcus, C.
AU - P. Hanson, M.
AU - C. Gossard, A.
PY - 2005/12/31
Y1 - 2005/12/31
N2 - Pulsed electrostatic gating combined with capacitive charge sensing is used to perform excited state spectroscopy of an electrically isolated double-quantum-dot system. The tunneling rate of a single charge moving between the two dots is affected by the alignment of quantized energy levels; measured tunneling probabilities thereby reveal spectral features. Two pulse sequences are investigated, one of which, termed latched detection, allows measurement of a single tunneling event without repetition. Both provide excited-state spectroscopy without electrical contact to the double-dot system.
AB - Pulsed electrostatic gating combined with capacitive charge sensing is used to perform excited state spectroscopy of an electrically isolated double-quantum-dot system. The tunneling rate of a single charge moving between the two dots is affected by the alignment of quantized energy levels; measured tunneling probabilities thereby reveal spectral features. Two pulse sequences are investigated, one of which, termed latched detection, allows measurement of a single tunneling event without repetition. Both provide excited-state spectroscopy without electrical contact to the double-dot system.
KW - cond-mat.mes-hall
U2 - 10.1103/PhysRevB.71.115333
DO - 10.1103/PhysRevB.71.115333
M3 - Journal article
VL - 71
SP - 115333
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 11
ER -
ID: 40383225