Calculations of current in the cotunneling regime using Lindblad equations

Kian Maleki; Michael E Flatté

doi:10.48550/arxiv.2509.01003

Back

Calculations of current in the cotunneling regime using Lindblad equations

Preprint

Open access

Calculations of current in the cotunneling regime using Lindblad equations

Kian Maleki and Michael E Flatté

ArXiv.org

Cornell University

08/31/2025

DOI: 10.48550/arxiv.2509.01003

Files and links (1)

url

https://doi.org/10.48550/arxiv.2509.01003View

Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Transport through zero-dimensional states in a tunneling barrier can occur via co-tunneling, wherein a carrier occupying a state outside the range of energies between the chemical potentials of the two leads hops to a lead, and within the brief time permitted by the energy-time uncertainty relationship the occupancy is replenished from the other lead. Here, we calculate the current in such junctions using a Lindblad formalism within the Markovian approximation. We consider transport in the Coulomb blockade regime with spin-polarized leads and a magnetic field smaller than the coercive field of either lead. Dependences on magnetic field and lead spin polarization of the spin blockade, decoherence, and spin lifetime of the subsystems of this model are calculated.

Physics - Mesoscale and Nanoscale Physics

Details

Title: Subtitle: Calculations of current in the cotunneling regime using Lindblad equations
Creators: Kian Maleki
Michael E Flatté
Resource Type: Preprint
Publication Details: ArXiv.org
DOI: 10.48550/arxiv.2509.01003
ISSN: 2331-8422
Publisher: Cornell University; Ithaca, New York
Language: English
Date posted: 08/31/2025
Academic Unit: Electrical and Computer Engineering; Physics and Astronomy
Record Identifier: 9984958292502771

Metrics

6 Record Views