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Memcapacitors and Meminductors are Overunity Systems

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Document pages: 9 pages

Abstract: It is rigorously proved that ideal memcapacitors and meminductors are notpassive or lossless devices, nor are they satisfying the weaker notion ofcyclo-passivity, which arises when dropping the requirement of non-negativityof the storage function. Equivalently, this implies that there exist excitationprofiles that allow to extract more energy from the device than it is suppliedwith; so that their energy conversion efficiency exceeds 100 . This means thatideal memcapacitors and meminductors constitute so-called overunity systems. Anillustrative mechanical analogue is provided that explicitly confirms thisproperty. Hence, the question arises if ideal memcapacitors and meminductorswill just remain some mathematical toys or artefacts.

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