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We study the multipartite quantum correlation (MQC) in a quantum transverseIsing system with the tunable triangular configuration, where it is found thatthe MQC itself cannot always discriminate the frustrated and nonfrustratedregimes of the ground state but the MQC combined with our newly defined MQCsusceptibility can complete the task. Meanwhile, we reveal that the spatiallyanisotropic coupling is an effective and feasible tool for the MQC modulationin the ground state of frustrated Ising spins. Furthermore, we analyze themultipartite correlation properties in the thermal state, where it is shownthat, unlike the thermally fragile MQC in the nonfrustrated regimes, there is athree-way trade-off relation among high MQC, strong thermal robustness, and thespatially anisotropic interactions in the frustrated spins. In addition, anexperimental scheme for the MQC modulation via the anisotropic coupling isdiscussed in the system of cold atoms trapped in an optical lattice.

Multipartite quantum correlations in the frustrated and nonfrustrated regimes of a tunable triangular Ising system