1,486 research outputs found
Non-Markovian theory for the waiting time distributions of single electron transfers
We derive a non-Markovian theory for waiting time distributions of
consecutive single electron transfer events. The presented microscopic Pauli
rate equation formalism couples the open electrodes to the many-body system,
allowing to take finite bias and temperature into consideration. Numerical
results reveal transient oscillations of distinct system frequencies due to
memory in the waiting time distributions. Memory effects can be approximated by
an expansion in non-Markovian corrections. This method is employed to calculate
memory landscapes displaying preservation of memory over multiple consecutive
electron transfers.Comment: 8 pages, 3 figure
High coherent solid-state qubit from a pair of quantum dots
In this letter we propose a scheme to build up high coherent solid-state
quantum bit (qubit) from two coupled quantum dots. Quantum information is
stored in electron-hole pair state with the electron and hole locating in
different dots, and universal quantum gates involving any pair of qubits are
realized by effective coupling interaction via virtually exchanging cavity
photons.Comment: 3 pages, 1 figur
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