Shapiro Resonances in Mechanically Modulated Exciton-Polariton Josephson Junctions

Area of Science:

• Quantum physics
• Condensed matter physics
• Optics

Background:

• Josephson junctions are crucial for quantum electronics.
• Exciton-polariton condensates offer a unique platform for quantum phenomena.
• Understanding driven-dissipative quantum systems is key to new technologies.

Purpose of the Study:

• To investigate the dynamics of Josephson junctions between two confined exciton-polariton condensates.
• To explore the effects of periodic modulation via self-induced GHz mechanical oscillations.
• To characterize the energy detuning and particle tunneling phenomena.

Main Methods:

• Experimental investigation of Josephson junctions.
• Utilizing confined exciton-polariton condensates.
• Applying periodic modulation via self-induced GHz mechanical oscillations.
• Analyzing energy detuning and particle tunneling.

Main Results:

• Observed plateau behavior in energy detuning, analogous to Shapiro steps.
• Demonstrated massive particle tunneling at specific modulation quanta.
• Characterized Shapiro-like spikes with asymmetric shapes.
• Attributed asymmetry to nonlinearities and gain in the quantum driven-dissipative system.

Conclusions:

• The study reveals Shapiro step-like phenomena in exciton-polariton Josephson junctions.
• Massive tunneling and asymmetric spikes highlight the role of nonlinearities and gain.
• This work provides insights into quantum dynamics in driven-dissipative systems.