Dissipation-driven entanglement between two microwave fields in a four-mode hybrid cavity optomechanical system

Area of Science:

• Quantum physics
• Optomechanics
• Quantum information science

Background:

• Entanglement is essential for quantum information tasks like teleportation.
• Integrated devices require efficient methods for generating and manipulating entanglement.

Purpose of the Study:

• To propose an effective approach for creating steady-state entanglement between microwave fields.
• To achieve high purity and strength in the entangled state.

Main Methods:

• Utilizing a four-mode hybrid cavity optomechanical system.
• Employing three beam-splitter and two parametric-amplifier interactions.
• Leveraging dissipation-driven and cavity cooling processes.

Main Results:

• Generated steady-state entanglement between two microwave fields.
• Achieved entanglement exceeding the limit of coherent parametric coupling.
• Engineered bath simultaneously cooled Bogoliubov modes for high purity.

Conclusions:

• The proposed method effectively creates highly pure and strongly entangled microwave fields.
• This approach is significant for quantum tasks utilizing hybrid opto-electro-mechanical systems on chips.