标题： 结晶束的诊断标准 显示英文标题

标题： Diagnostic criterion for crystallized beams

摘要： 在保罗阱中，小离子晶体即使在没有激光冷却的情况下也是稳定的。 基于这一理论和实验上都已确立的事实，我们提出以下诊断标准来确定束流是否结晶：关闭所有冷却装置后没有升温。 该标准的有效性通过详细数值模拟进行了验证。 显示英文摘要

摘要： Small ion crystals in a Paul trap are stable even in the absence of laser cooling. Based on this theoretically and experimentally well-established fact we propose the following diagnostic criterion for establishing the presence of a crystallized beam: Absence of heating following the shut-down of all cooling devices. The validity of the criterion is checked with the help of detailed numerical simulations.