Statics and Small Signal Dynamics of Quantum Thermal Transistors

This thesis explores quantum thermotronics, an emerging field at the intersection of electronics, quantum mechanics, and thermodynamics. It develops theory and models for a quantum thermal transistor designed for precise heat management in next-generation electronic/optoelectronic systems. Realizing such devices demands a thorough understanding of their static, dynamic, and noise behavior, along with sensitivity to environmental interactions. This work investigates these factors comprehensively and introduces quantum feedback control as a strategy to enhance stability, efficiency, and performance. The findings aim to support the development of scalable thermotronic components for advanced quantum technologies.