Frequency-dependent counting statistics in interacting nanoscale conductors
نویسندگان
چکیده
منابع مشابه
Full-counting statistics of time-dependent conductors
We develop a scheme for the computation of the full-counting statistics of transport described by Markovian master equations with an arbitrary time dependence. It is based on a hierarchy of generalized density operators, where the trace of each operator yields one cumulant. This direct relation offers a better numerical efficiency than the equivalent number-resolved master equation. The propose...
متن کاملCooper - Pair Tunneling : Counting Statistics and Frequency - Dependent Current Noise
We discuss the counting statistics and current noise associated with the double Josephson quasiparticle resonance point in a superconducting single electron transistor. The counting statistics are in general phase-dependent, despite the fact that the average current has no dependence on phase. Focusing on parameter regimes where the counting statistics have no phase-dependence, we use a general...
متن کاملFull counting statistics of interacting electrons
D.A. Bagrets1,2,∗, Y. Utsumi1,3, D. S. Golubev1,2,4, and Gerd Schön1,2,∗∗ 1 Institut für Theoretische Festköperphysik and DFG-Center for Functional Nanostructures (CFN), Universität Karlsruhe, 76128 Karlsruhe, Germany 2 Forschungszentrum Karlsruhe, Institut für Nanotechnologie, 76021 Karlsruhe, Germany 3 Condensed Matter Theory Laboratory, The Institute of Physical and Chemical Research (RIKEN)...
متن کاملCounting statistics for mesoscopic conductors with internal degrees of freedom.
We consider the transport of electrons passing through a mesoscopic device possessing internal dynamical quantum degrees of freedom. The mutual interaction between the system and the conduction electrons contributes to the current fluctuations, which we describe in terms of full counting statistics. We identify conditions where this discriminates coherent from incoherent internal dynamics and a...
متن کاملAtom counting statistics in ensembles of interacting Rydberg atoms.
We show that the probability distributions for the number of Rydberg excitations in small ensembles of cold atoms, excited using short (100 ns) laser pulses, can be highly sub-Poissonian. The phenomenon occurs if the atom density and the principal quantum number of the excited Rydberg level are sufficiently high. Our observations are attributed to a blockade of the Rydberg atom excitation.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2007
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.76.161404