  We propose a quantum-enhanced heat engine with entanglement. The key feature
of our scheme is superabsorption, which facilitates enhanced energy absorption
by entangled qubits. Whereas a conventional engine with $N$ separable qubits
provides power with a scaling of $P = \Theta (N)$, our engine uses
superabsorption to provide power with a quantum scaling of $P = \Theta(N^2)$.
This quantum heat engine also exhibits a scaling advantage over classical ones
composed of $N$-particle Langevin systems. Our work elucidates the quantum
properties allowing for the enhancement of performance.
