Reassessing thermodynamic advantage from indefinite causal order

Understand

Indefinite causal order is a key feature involved in the study of quantum higher order transformations.

• Recently, intense research has been focused on possible advantages related to the lack of definite causal order of quantum processes.
• Quite often the quantum switch is claimed to provide advantages in information-theoretic and thermodynamic tasks.
• We address here the question whether indefinite causal order is a resource for quantum thermodynamics.