标题： 受限量子液态丝中的毛细管不稳定性抑制 显示英文标题

标题： Suppression of capillary instability in a confined quantum liquid filament

摘要： 具有强吸引力的量子玻色-玻色混合物可以形成由量子涨落稳定的自束缚、类似液体的液滴。 尽管平衡密度远低于经典液体，这些液滴表现出有限的表面张力和类似液体的行为。 最近的实验已经证明了在光学波导中被限制的长条状液滴中的瑞利-波特莱夫不稳定性。 在这里，我们考虑无限细丝的情况，并将理论描述扩展以包括横向谐波约束。 通过在单组分框架内求解玻戈留波-德根内斯方程，并与完整的格罗斯-皮塔耶夫斯基模拟进行对比，我们表明增加约束会逐步抑制不稳定性，在临界陷阱频率以上实现完全稳定化。 显示英文摘要

摘要： Quantum Bose-Bose mixtures with strong attraction can form self-bound, liquid-like droplets stabilized by quantum fluctuations. Despite equilibrium densities much lower than those of classical liquids, these droplets exhibit finite surface tension and liquid-like behaviors. Recent experiments have demonstrated Rayleigh-Plateau instability in elongated droplets confined in an optical waveguide. Here we consider the case of an infinite filament and extend the theoretical description to include transverse harmonic confinement. By solving the Bogoliubov-deGennes equations within a single-component framework, benchmarked against full Gross-Pitaevskii simulations, we show that increasing confinement progressively suppresses the instability, leading to complete stabilization beyond a critical trap frequency.