title: Experimental simulation of quantum tunneling in small systems.
abstract: It is well known that quantum computers are superior to classical computers in efficiently simulating quantum systems. Here we report the first experimental simulation of quantum tunneling through potential barriers, a widespread phenomenon of a unique quantum nature, via NMR techniques. Our experiment is based on a digital particle simulation algorithm and requires very few spin-1/2 nuclei without the need of ancillary qubits. The occurrence of quantum tunneling through a barrier, together with the oscillation of the state in potential wells, are clearly observed through the experimental results. This experiment has clearly demonstrated the possibility to observe and study profound physical phenomena within even the reach of small quantum computers.
authors: 1] State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, P. R. China [2] Tsinghua National Laboratory for Information Science and Technology, Beijing 100084, P. R. China [3].
authors: Guan-Ru
authors: GR
authors: Feng
authors: Yao
authors: Y
authors: Lu
authors: Liang
authors: L
authors: Hao
authors: Fei-Hao
authors: FH
authors: Zhang
authors: Gui-Lu
authors: GL
authors: Long
mesh_terms: D003198:Computer Simulation; D039301:Computers, Molecular; D004579:Electron Transport; D008956:Models, Chemical; D011789:Quantum Theory; D012666:Semiconductors
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