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

Abstract

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.

19 pages, 20 figures

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Cited by in corpus (13)

• Perspective on new implementations of atomtronic circuits
• Persistent currents in ultracold gases
• Variational Quantum Eigensolver for SU($N$) Fermions
• Interference dynamics of matter-waves of SU($N$) fermions
• Exact one-particle density matrix for SU($N$) fermionic matter-waves in the strong repulsive limit
• Spectroscopic evidence for engineered hadron formation in repulsive fermionic $\text{SU}(N)$ Hubbard Models
• Coexisting Néel and charge density wave orders in attractive three-color fermions
• Exotic Superfluid with Emergent flux in a one-dimensional Bose-Fermi mixture
• Static impurity in a mesoscopic system of SU($N$) fermionic matter-waves
• Ground State Phase Diagram of $\text{SU}(3)$ $t$-$J$ Chain
• Trion formation and ordering in the attractive SU(3) Fermi-Hubbard model
• Necklace Ansatz for strongly repulsive spin mixtures on a ring
• Preparing the Gutzwiller wave function for attractive SU(3) fermions on a quantum computer