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arXiv 2112.06950cond-mat.quant-gascond-mat.mes-hallhep-thnucl-thquant-ph
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探测SU(3)费米子的束缚态与色退禁闭

Probe for bound states of SU(3) fermions and colour deconfinement

Wayne J. Chetcuti, Juan Polo, Andreas Osterloh, Paolo Castorina, Luigi Amico

AI总结:

该研究利用冷原子三组分费米子系统,通过持续电流区分色超流体与三重子束缚态,并揭示不同相互作用强度下有限温度引发束缚态退禁闭的机制,为夸克物质相关研究提供模拟平台。

摘要:

利用冷原子实现的费米子人工物质,能以前所未有的调控精度研究复杂多体效应,且操作条件的灵活性大幅提升。我们研究具有吸引相互作用的三组分费米子,以探究性质超越量子材料中标准费米子配对的复杂束缚态的形成机制,这类系统与夸克物质存在明确的相似性。本文通过持续电流研究环形势阱中三组分费米子系统束缚态的性质,以此证明我们可区分色超流体与三重子(trionic)束缚态。通过分析有限温度效应,我们发现有限温度可导致束缚态退禁闭:弱相互作用下,退禁闭由散射态引发,该区域内退禁闭取决于相互作用与热涨落温度的权衡;强相互作用下,持续电流的特征由相应束缚态气体的性质决定。

英文摘要:

Fermionic artificial matter realized with cold atoms grants access to an unprecedented degree of control on sophisticated many-body effects with an enhanced flexibility of the operating conditions. We consider three-component fermions with attractive interactions to study the formation of complex bound states whose nature goes beyond the standard fermion pairing occurring in quantum materials. Such systems display clear analogies with quark matter. Here, we address the nature of the bound states of a three-component fermionic system in a ring-shaped trap through the persistent current. In this way, we demonstrate that we can distinguish between color superfluid and trionic bound states. By analyzing finite temperature effects, we show how finite temperature can lead to the deconfinement of bound states. For weak interactions the deconfinement occurs because of scattering states. In this regime, the deconfinement depends on the trade-off between interactions and thermal fluctuations temperature. For strong interactions the features of the persistent current result from the properties of a suitable gas of bound states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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