Xingyu Zhao

3 weeks ago | nature.com | Xingyu Zhao |kamran rehan |Yi Li |YUE LI |Eric Lutz |Yiheng Lin

AbstractEnergy efficiency and quantum advantage are two important features of quantum devices. We here report an experimental realization that combines both features in a quantum engine coupled to a quantum battery that stores the produced work, using a single ion in a linear Paul trap. We begin by establishing the quantum nature of the device by observing nonclassical work oscillations with the number of cycles as verified by energy measurements of the battery.