The three-photon Kerr parametric oscillator exhibits a threefold degenerate ground state of superpositions of squeezed states, tunable to anti-squeezing, for a protected Kerr-cat qutrit.
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Path-integral derivation of non-perturbative switching rates for bistable open quantum systems obeying hidden time-reversal symmetry, with direct application to bit-flip rates in dissipative cat qubits.
Proposes multi-component bridge states outside cat code space for syndrome extraction in teleportation-based cat code QEC when nonlinear interactions are limiting.
citing papers explorer
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Quantum theory of a three-photon Kerr parametric oscillator
The three-photon Kerr parametric oscillator exhibits a threefold degenerate ground state of superpositions of squeezed states, tunable to anti-squeezing, for a protected Kerr-cat qutrit.
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Non-perturbative switching rates in bistable open quantum systems: from driven Kerr oscillators to dissipative cat qubits
Path-integral derivation of non-perturbative switching rates for bistable open quantum systems obeying hidden time-reversal symmetry, with direct application to bit-flip rates in dissipative cat qubits.
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Use of Faulty States in Cat-Code Error Correction
Proposes multi-component bridge states outside cat code space for syndrome extraction in teleportation-based cat code QEC when nonlinear interactions are limiting.