Transport and Strong-Correlation Phenomena in Carbon Nanotube Quantum Dots in a Magnetic Field

TL;DR

This paper investigates how magnetic fields influence transport and strong-correlation phenomena in carbon nanotube quantum dots, revealing distinct signatures in conductance and noise, with implications for related double quantum dot systems.

Contribution

It provides a detailed analysis of the evolution from ultraviolet to infrared regimes and characterizes the strongly correlated states in CNT quantum dots under magnetic fields.

Findings

Strongly correlated states vary significantly with filling factors.

Distinct conductance and noise signatures identify different SC states.

Results are applicable to double quantum dot systems.

Abstract

Transport through carbon nanotube (CNT) quantum dots (QDs) in a magnetic field is discussed. The evolution of the system from the ultraviolet to the infrared is analyzed; the strongly correlated (SC) states arising in the infrared are investigated. Experimental consequences of the physics are presented -- the SC states arising at various fillings are shown to be drastically different, with distinct signatures in the conductance and, in particular, the noise. Besides CNT QDs, our results are also relevant to double QD systems.