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<p>Templated porous materials like MCM-41 offer a scalable platform for studying one-dimensional quantum fluids due to their uniform structure. However, achieving true 1D helium behavior is limited by pore sizes typically larger than helium’s coherence length. Building on prior work using Ar preplating to reduce pore size and soften adsorption potentials, we propose a novel approach: preplating MCM-41 with cesium (Cs). Cs’s large atomic radius and non-wetting interaction with helium create an ideal confinement environment. Preliminary adsorption isotherms and small-angle X-ray scattering data confirm reduced pore radii, supporting the potential for realizing 1D <sup>4</sup>He quantum fluids in Cs-preplated MCM-41.</p>

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Novel Experimental Platform to Realize One-dimensional Quantum Fluids

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年8月15日

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  • Stephanie McNamara,
  • Prabin Parajuli,
  • Sutirtha Paul,
  • Garfield Warren,
  • Adrian Del Maestro,
  • Paul E. Sokol

摘要

Templated porous materials like MCM-41 offer a scalable platform for studying one-dimensional quantum fluids due to their uniform structure. However, achieving true 1D helium behavior is limited by pore sizes typically larger than helium’s coherence length. Building on prior work using Ar preplating to reduce pore size and soften adsorption potentials, we propose a novel approach: preplating MCM-41 with cesium (Cs). Cs’s large atomic radius and non-wetting interaction with helium create an ideal confinement environment. Preliminary adsorption isotherms and small-angle X-ray scattering data confirm reduced pore radii, supporting the potential for realizing 1D 4He quantum fluids in Cs-preplated MCM-41.