A discrete phase-space path integral is constructed for finite quantum mechanics, reducing to classical deterministic flow for linear Hamiltonians while requiring all fluctuation sectors to capture entanglement dynamics in qutrit systems.
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Efficient algorithms compute stabilizer Rényi entropy and mana for quantum states from vectors at O(N d^{2N}) cost using fast Hadamard transform, with open-source implementation.
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Path integral formulation of finite-dimensional quantum mechanics in discrete phase space
A discrete phase-space path integral is constructed for finite quantum mechanics, reducing to classical deterministic flow for linear Hamiltonians while requiring all fluctuation sectors to capture entanglement dynamics in qutrit systems.
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Computing quantum magic of state vectors
Efficient algorithms compute stabilizer Rényi entropy and mana for quantum states from vectors at O(N d^{2N}) cost using fast Hadamard transform, with open-source implementation.