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arXiv · 2504.08708

Shapiro resonances in ac-self-modulated exciton-polariton Josephson junctions

I. Carraro Haddad·D. L. Chafatinos·A. A. Reynoso·A. E. Bruchhausen·A. S. Kuznetsov·K. Biermann·P. V. Santos·G. Usaj·A. Fainstein
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Abstract

We experimentally investigate the dynamics of exciton polariton Josephson junctions when the coupling between condensates is periodically modulated through self-induced mechanical oscillations. The condensates energy detuning, the analog of the bias voltage in superconducting junctions, displays a plateau behavior akin to the Shapiro steps. At each step massive tunneling of particles occurs featuring Shapiro-like spikes. These characteristic changes are observed when the condensates Josephson frequency $\omega_\textrm{J}$ is an integer multiple of the modulation frequency $\omega_\mathrm{M}$.

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I. Carraro Haddad, D. L. Chafatinos, A. A. Reynoso, A. E. Bruchhausen, A. S. Kuznetsov, K. Biermann, P. V. Santos, G. Usaj, A. Fainstein. 2025-04-11. Shapiro resonances in ac-self-modulated exciton-polariton Josephson junctions. https://doi.org/10.1103/kgz6-g8x3

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