Photon blockade and the quantum-to-classical transition in the driven-dissipative Josephson pendulum coupled to a resonator

I. Pietikäinen, J. Tuorila, D. S. Golubev, G. S. Paraoanu

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

4 Sitaatiot (Scopus)
143 Lataukset (Pure)

Abstrakti

We investigate the driven quantum phase transition between the oscillating motion and the classical nearly free rotations of the Josephson pendulum coupled to a harmonic oscillator in the presence of dissipation. We refer to this as the Josephson-Rabi model. This model describes the standard setup of circuit quantum electrodynamics, where typically a transmon device is embedded in a superconducting cavity. We find that by treating the system quantum mechanically this transition occurs at higher drive powers than expected from an all-classical treatment, which is a consequence of the quasiperiodicity originating in the discrete energy spectrum of the bound states. We calculate the photon number in the resonator and show that its dependence on the drive power is nonlinear. In addition, the resulting multiphoton blockade phenomenon is sensitive to the truncation of the number of states in the transmon, which limits the applicability of the standard Jaynes-Cummings model as an approximation for the pendulum-oscillator system. We calculate the nth-order correlation functions of the blockaded microwave photons and observe the differences between the rotating-wave approximation and the full multilevel Josephson-Rabi Hamiltonian with the counter-rotating terms included. Finally, we compare two different approaches to dissipation, namely the Floquet-Born-Markov and the Lindblad formalisms.

AlkuperäiskieliEnglanti
Artikkeli063828
Sivut1-17
Sivumäärä17
JulkaisuPhysical Review A
Vuosikerta99
Numero6
DOI - pysyväislinkit
TilaJulkaistu - 20 kesäkuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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  • Projektit

    QTF: Kvanttiteknologian huippuyksikkö

    Golubev, D., Maillet, O., Pekola, J. & Senior, J.

    01/01/201831/12/2020

    Projekti: Academy of Finland: Other research funding

    Kvanttiteknologian huippuyksikkö

    Paraoanu, G., Lan, D., Dogra, S., McCord, J. & Petrovnin, K.

    01/01/201831/12/2020

    Projekti: Academy of Finland: Other research funding

    Kvanttiteknologian huippuyksikkö

    Möttönen, M., Tuorila, J., Mäkinen, A., Ollikainen, T., Sevriuk, V., Hazra, D. & Heinsoo, J.

    01/01/201831/12/2019

    Projekti: Academy of Finland: Other research funding

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    OtaNano

    Anna Rissanen (Manager)

    Aalto-yliopisto

    Laitteistot/tilat: Facility

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