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arXiv:2606.06432

Quantum Thermal Logic Gates

Shuvadip Ghosh, Arnab Ghosh, Bivas Dutta, Papiya Maity

cond-mat.mes-hallcond-mat.mtrl-scicond-mat.str-elquant-phSubmitted Jun 4, 2026• Announced Jun 5, 2026
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Abstract

We propose a new concept for quantum thermal logic gates -- analogous to classical electronic logic gates -- that exploit the heat current in a coupled quantum-dot system tunnel-coupled to metallic thermal reservoirs for logic operations in quantum circuits. We obtained a remarkable one-to-one correspondence with the structure of classical electronic logic gate circuits. An experimental setup is presented that demonstrates a realizable nano-electronic quantum circuit architecture for implementing such quantum thermal logic operations.

Comments
20 pages, 21 figures

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We propose a new concept for quantum thermal logic gates -- analogous to classical electronic logic gates -- that exploit the heat current in a coupled quantum-dot system tunnel-coupled to metallic thermal reservoirs for logic operations in quantum circuits. We obtained a remarkable one-to-one correspondence with the structure of classical electronic logic gate circuits. An experimental setup is presented that demonstrates a realizable nano-electronic quantum circuit architecture for implementing such quantum thermal logic operations.
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