过冷3He-A气泡的磁约束

IF 1.4 3区物理与天体物理 Q4 PHYSICS, APPLIED

Journal of Low Temperature Physics Pub Date : 2025-08-27 DOI:10.1007/s10909-025-03328-w

Luke Whitehead, Andrew Casey, Richard P. Haley, Petri J. Heikkinen, Lev V. Levitin, Adam J. Mayer, Xavier Rojas, Tineke Salmon, John Saunders, Alex Thomson, Dmitry E. Zmeev, Samuli Autti

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引用次数: 0

摘要

我们设计并建造了一个围绕圆柱形超流体氦-3的磁铁，以隔离亚稳，过冷的a相区域，完全被体a相包围-从粗糙的表面隔离“气泡”，可以触发过渡到稳定的B相。我们概述了实验单元和磁体的设计，并表明磁体的性能与模拟一致，包括产生产生气泡所需的高场梯度的能力。未来的计划包括研究支持A-B转换的可能内在机制，以及对早期宇宙宇宙学相变的潜在影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Magnetic Confinement of a Bubble of Supercooled 3He-A

We have designed and constructed a magnet surrounding a cylindrical volume of superfluid helium-3 to isolate a region of metastable, supercooled A phase, entirely surrounded by bulk A phase - isolating the ‘bubble’ from rough surfaces that can trigger the transition to the stable B phase. We outline the design of the experimental cell and magnet and show that the performance of the magnet is consistent with simulations, including the capability to produce the high field gradient required for generating a bubble. Future plans include the investigation of possible intrinsic mechanisms underpinning the A-B transition, with potential implications for early-universe cosmological phase transitions.

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来源期刊

Journal of Low Temperature Physics 物理-物理：凝聚态物理

CiteScore

3.30

自引率

25.00%

发文量

245

审稿时长

1 months

期刊介绍： The Journal of Low Temperature Physics publishes original papers and review articles on all areas of low temperature physics and cryogenics, including theoretical and experimental contributions. Subject areas include: Quantum solids, liquids and gases; Superfluidity; Superconductivity; Condensed matter physics; Experimental techniques; The Journal encourages the submission of Rapid Communications and Special Issues.