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摘要
Superconducting systems such as those modeled by the Kitaev Hamiltonian are found to exhibit Zitterbewegung (ZB) oscillations. Remarkably, the dispersion relation in one-dimensional Kitaev systems allows for wave packets of arbitrary size to undergo nondecaying ZB oscillations without any distortion, with the typical ZB amplitude being one lattice site. To motivate possible experimental interest in this dynamical aspect of superconducting systems, we further show that a certain on-resonance modulation of the Hamiltonian parameter can be exploited to convert ZB oscillations to net drifting of the particle's and hole's wave packet along opposite directions, leading to long-distance particle-hole separation.
- 出版日期2016-3-14
- 单位浙江工业大学
