James Lim, Mark Tame, Ki Hyuk Yee, Joong-Sung Lee, Jinhyoung Lee
In a network of interacting quantum systems achieving fast coherent energy transfer is a notoriously challenging task. While quantum systems are susceptible to a wide range of environmental factors, in many physical settings their interactions with quantized vibrations, or phonons, of a supporting structure are the most prevalent. This leads to noise and decoherence inside the network, ultimately impacting the energy-transfer process. In this work, we introduce a fundamentally new type of coherent energy-transfer mechanism for quantum systems, where phonon interactions actually enhance the energy transfer. Here, a shared phonon interacts with the systems and dynamically adjusts their resonances, providing remarkable directionality combined with quantum speed-up. We call this mechanism phonon-induced dynamic resonance energy transfer and show that it enables long-range coherent energy transport even in highly disordered systems.
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http://arxiv.org/abs/1304.3967
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