TY - JOUR
T1 - Dynamical Coulomb blockade and the derivative discontinuity of time-dependent density functional theory
AU - Kurth, S.
AU - Stefanucci, G.
AU - Khosravi, E.
AU - Verdozzi, C.
AU - Gross, E. K.U.
PY - 2010/6/7
Y1 - 2010/6/7
N2 - The role of the discontinuity of the exchange-correlation potential of density functional theory is studied in the context of electron transport and shown to be intimately related to Coulomb blockade. By following the time evolution of an interacting nanojunction attached to biased leads, we find that, instead of evolving to a steady state, the system reaches a dynamical state characterized by correlation-induced current oscillations. Our results establish a dynamical picture of Coulomb blockade manifesting itself as a periodic sequence of charging and discharging of the nanostructure.
AB - The role of the discontinuity of the exchange-correlation potential of density functional theory is studied in the context of electron transport and shown to be intimately related to Coulomb blockade. By following the time evolution of an interacting nanojunction attached to biased leads, we find that, instead of evolving to a steady state, the system reaches a dynamical state characterized by correlation-induced current oscillations. Our results establish a dynamical picture of Coulomb blockade manifesting itself as a periodic sequence of charging and discharging of the nanostructure.
UR - http://www.scopus.com/inward/record.url?scp=77953235624&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.104.236801
DO - 10.1103/PhysRevLett.104.236801
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AN - SCOPUS:77953235624
SN - 0031-9007
VL - 104
JO - Physical Review Letters
JF - Physical Review Letters
IS - 23
M1 - 236801
ER -