Exact eigenstates of non-frustration-free quantum many-body systems are constructed via a local error cancellation matrix-product ansatz.
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Kinetic frustration produces exact scars in hardcore boson and fermion Hubbard models that map to each other and are realizable on quantum simulators with tunable lifetimes via a new energy-distribution heuristic.
Symmetric superpositions of antipodal triplet states produce exact zero-energy eigenstates in non-integrable spin Hamiltonians that are scars with tunable entanglement from volume to area law.
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.
citing papers explorer
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Exact Quantum Many-Body Scars by a generalized Matrix-Product Ansatz
Exact eigenstates of non-frustration-free quantum many-body systems are constructed via a local error cancellation matrix-product ansatz.
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Exact quantum scars from kinetic frustration for cross-platform realizations
Kinetic frustration produces exact scars in hardcore boson and fermion Hubbard models that map to each other and are realizable on quantum simulators with tunable lifetimes via a new energy-distribution heuristic.
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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.