Thermodynamic advancement in the causally inseparable occurrence of thermal maps
Physical Review A
Quantum mechanics allows the occurrence of events without having any definite causal order. We show that the application of two different thermal channels in causally inseparable order can enhance the potential to extract work, in contrast to any of their definite order of occurrence. Surprisingly, this enhancement is possible even without assigning any thermodynamic resource value to the input qubits. Further, we provide a nontrivial example of causal enhancement using nonunital pin maps, the realization of which, in the superposition of path framework, has not been clearly known. Hence, our result may be a potential candidate to accentuate the difference between superposition of time and superposition of paths frameworks.
Guha, Tamal; Alimuddin, Mir; and Parashar, Preeti, "Thermodynamic advancement in the causally inseparable occurrence of thermal maps" (2020). Journal Articles. 139.