Cylindrical matter is a new beyond-quantum model that faithfully reproduces measurement statistics of some quantum pure-Ising systems with interactions decaying faster than 1/r^{3D/2}, allowing classical simulation.
An extended Weyl-Wigner transformation for special finite spaces
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Incoherent qubit pumping combined with dispersive magnon-number selectivity stabilizes Wigner-negative magnon Fock states, with an analytical birth-death model matching numerics.
Negative quantum states from discrete Wigner functions show resilience advantages over Bell states under non-Markovian dynamics, are protected via weak measurements, and are realized on IBM superconducting hardware.
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Wigner-Negative Magnon Steady States from Incoherent Qubit Pumping
Incoherent qubit pumping combined with dispersive magnon-number selectivity stabilizes Wigner-negative magnon Fock states, with an analytical birth-death model matching numerics.