A dynamical invariant approach in hybrid systems generates cat states with >120 mean photons deterministically under Hermitian or non-Hermitian Hamiltonians, with fidelity >0.962 in the dissipative case.
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A code-agnostic hybrid rotation protocol using a qubit ancilla and controlled-Fourier gates suppresses bosonic thermal and displacement noise quadratically while preserving high success probability.
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Deterministic generation of cat states with more than $100$ photons under dissipation
A dynamical invariant approach in hybrid systems generates cat states with >120 mean photons deterministically under Hermitian or non-Hermitian Hamiltonians, with fidelity >0.962 in the dissipative case.