AQP Seminar: Quantum heat engine using energy quantization and resources of degeneracy

Aalto Quantum Physics Seminar (Nanotalo). Speaker: Dr. Debmalya Das (QIC Group, Harish-Chandra Research Institute (HRI), India)

In this talk, I will discuss our recent study of a quantum Stirling-like cycle which extracts work using quantized energy levels of a potential well. The work and the efficiency of the engine depend on the length of the potential well, and the Carnot efficiency is approached in a low temperature limiting case. We use the lack of information about the position of the particle inside the potential well and convert it into useful work without resorting to any measurement. In the low temperature limit, we calculate the amount of work that can be extracted from distinguishable particles, fermions and bosons.