SUPERCONDUCTING HYBRID OPTOMECHANICAL SYSTEM
Abstract
With recent developments in the field of superconducting microwave circuits based on circuit quantum electrodynamics (c-QED) and cavity-optomechanics (c-OPM) architectures, several breakthroughs have been made. With the advancement in the ability to control and to manipulate the mechanical systems and superconducting qubits, it has now become possible to envision new hybrid systems. The compliance, compactness, and long coherence times of mechanical systems, along with the inherent electrical nonlinearity of superconducting qubit can be harnessed together to engineer novel interactions and devices, which can meet the challenges related to quantum signal processing. Here, I propose to develop a hybrid-optomechanical device using a mechanical oscillator and a superconducting qubit coupled via a common waveguide cavity mode. The mechanical mode couples dispersively to the cavity-mode, while the resonant frequency of the superconducting qubit could be rapidly tuned. The qubit mode therefore serves the role of a single-photon source and a single-photon detector. At the core of such a device, we utilize the mechanical compliance, nonlinearity of superconducting qubit, and high coherence of waveguide cavities to achieve richer light-matter interaction. These devices have prospects to be used in modular architecture of quantum computing towards capturing, routing, conversion, and storage of quantum signals thus acting as an interface between two quantum nodes. Apart from these direct applications, such devices could further shed light on our understanding of decoherence in macroscopic quantum systems.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 11, 2021
- Source ID
- FA23862014003
Entities
People
- Vibhor Singh
Organizations
- Air Force Office of Scientific Research
- Indian Institute of Science, Bengaluru
- United States Air Force