2024
Effective versus Floquet theory for the Kerr parametric oscillator
García-Mata I, Cortiñas R, Xiao X, Chávez-Carlos J, Batista V, Santos L, Wisniacki D. Effective versus Floquet theory for the Kerr parametric oscillator. Quantum 2024, 8: 1298. DOI: 10.22331/q-2024-03-25-1298.Peer-Reviewed Original ResearchState-of-the-art experimentsKerr parametric oscillatorCat statesFloquet statesEffective HamiltonianParametrized gatesQuantum technologiesKerr oscillatorsQuasi-energiesParametric oscillatorPerturbation expansionQuantum computationParameter regimesRelevant physicsFloquet theoryKerrFloquetTechnological interestPhysicsOscillationsHamiltonianQuantumStateLow-orderOriginal system
2023
Spectral kissing and its dynamical consequences in the squeeze-driven Kerr oscillator
Chávez-Carlos J, Lezama T, Cortiñas R, Venkatraman J, Devoret M, Batista V, Pérez-Bernal F, Santos L. Spectral kissing and its dynamical consequences in the squeeze-driven Kerr oscillator. Npj Quantum Information 2023, 9: 76. PMID: 38665256, PMCID: PMC11041765, DOI: 10.1038/s41534-023-00745-1.Peer-Reviewed Original ResearchExcited-state quantum phase transitionsQuantum phase transitionQuantum information processingFundamental physics questionsTime-ordered correlatorsPhase transitionDynamical consequencesCold atomsTransmon qubitsQuantum computerIon trapKerr oscillatorsPhysics questionsExcited statesCircuit platformPeriodic revivalsEffective HamiltonianTransmonNonlinear oscillatorsQubitsInformation processingOscillatorSlow evolutionTransitionEngineering implementation