Tunable microwave-optical entanglement and conversion in multimode electro-opto-mechanics

Area of Science:

• Quantum Optics
• Quantum Information Science
• Cavity Optomechanics

Background:

• Quantum interference is a fundamental phenomenon in quantum mechanics.
• Electro-opto-mechanical (EOM) systems couple microwave and optical fields via mechanical resonators.
• Controlling quantum interference is key to manipulating quantum states and interactions.

Purpose of the Study:

• To investigate tunable double-channel microwave-optical (M-O) entanglement and coherent conversion.
• To explore the role of quantum interference in a two-mechanical-mode EOM system.
• To demonstrate the control over M-O interaction channels and their characteristics.

Main Methods:

• Utilizing a two-mechanical-mode electro-opto-mechanical (EOM) system.
• Implementing phase-dependent phonon-phonon interaction between mechanical resonators (MRs).
• Controlling quantum interference by tuning mechanical coupling and cavity-MR couplings.

Main Results:

• Achieved tunable double-channel M-O entanglement and coherent conversion.
• Demonstrated switching between single-channel and double-channel M-O interaction.
• Showcased modulation of entanglement and conversion characteristics in each channel.
• Extended the scheme to an N-mechanical-mode EOM system for N discrete channels.

Conclusions:

• The proposed EOM system enables precise control over multichannel quantum interference.
• This provides a versatile platform for quantum information transduction and storage.
• The ability to engineer multiple quantum channels opens new avenues for quantum interfaces.