Dr.  Samyadeb Bhattacharya published a paper on Quantum Thermal Analogs of Electric Circuits: A Universal Approach  in the esteemed journal Physical Review Letters. The other authors of this paper are Devvrat Tiwari and Subhashish Banerjee from IIT Jodhpur. Here is the summary of the paper as explained by the authors:

In this Letter, we develop a panoramic schematic of quantum thermal analogs of electric circuits in the steady state regime. We establish the foundations of said premise by defining the analogs of Kirchhoff’s laws for heat currents and temperature gradients, as well as a quantum thermal step transformer. Using this, we develop two novel quantum thermal circuits, viz., quantum thermal super Wheatstone bridge and quantum thermal adder circuit, paving the way for the corresponding integrated circuits. We further show that our approach encompasses various circuits like thermal diode, transistor, and Wheatstone bridge. This sheds new light on the present architecture of quantum device engineering.

Full paper: https://journals.aps.org/prl/abstract/10.1103/5x8m-bhgd

July 2025