The spin-zero manifold of exchange-coupled spins offers Catalan-number dimension near 2^N and can be benchmarked with adapted XEB, mirror RB, and OTOCs under coarse PSB readout.
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In the open coupled-top Dicke model, photon loss induces spontaneous synchronization and two distinct dissipative quantum scars, one protected with persistent revivals and one showing slow decay linked to chaos-assisted tunneling for small spins.
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Spin singlets are useful
The spin-zero manifold of exchange-coupled spins offers Catalan-number dimension near 2^N and can be benchmarked with adapted XEB, mirror RB, and OTOCs under coarse PSB readout.
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Chaos to Synchronization and Dissipative Quantum Scarring in Open Coupled top-Dicke model in a Lossy Cavity
In the open coupled-top Dicke model, photon loss induces spontaneous synchronization and two distinct dissipative quantum scars, one protected with persistent revivals and one showing slow decay linked to chaos-assisted tunneling for small spins.