Statistical Analysis of 571 GaAs Quantum Point Contact Transistors Reveals Insights into the 0.7 Anomaly in Quantized Conductance Using Millikelvin Cryogenic On-Chip Multiplexing

The statistical analysis of a large array of on-chip integrated quantum point contact devices reveals that some of the features in the experimental results largely support the van Hove model with short-range interactions as the origin of the 0.7 anomaly in quantized conductance.