论文标题
二维玻色子的热力学相图
Thermodynamic Phase Diagram of Two-Dimensional Bosons in a Quasicrystal Potential
论文作者
论文摘要
现在，合成骨化物质中准晶体的量子模拟为在广泛的参数范围内探索这些有趣的系统铺平了道路。然而，这种系统中的热波动与量子相干性竞争，并显着影响零温量子相。在这里，我们确定相互作用玻色子的热力学相图在二维均匀的准晶体电位中。使用量子蒙特卡洛模拟发现我们的结果。仔细考虑了有限大小的缩放尺寸，量子相与热相区分开。特别是，我们证明了在相当大的参数范围内针对正常流体的真正玻色玻璃相稳定。我们使用效率图并讨论了实验相关性来解释我们的强烈相互作用的结果。
Quantum simulation of quasicrystals in synthetic bosonic matter now paves the way to the exploration of these intriguing systems in wide parameter ranges. Yet thermal fluctuations in such systems compete with quantum coherence, and significantly affect the zero-temperature quantum phases. Here we determine the thermodynamic phase diagram of interacting bosons in a two-dimensional, homogeneous quasicrystal potential. Our results are found using quantum Monte Carlo simulations. Finite-size scaling is carefully considered and the quantum phases are systematically distinguished from thermal phases. In particular, we demonstrate stabilization of a genuine Bose glass phase against the normal fluid in sizable parameter ranges. Our results for strong interactions are interpreted using a fermionization picture and experimental relevance is discussed.
