20240030913. TUNABLE RESONATOR-RESONATOR COUPLING CIRCUIT AND QUANTUM COMPUTING APPARATUS COMPRISING THEREOF simplified abstract (IQM FINLAND OY)
Contents
TUNABLE RESONATOR-RESONATOR COUPLING CIRCUIT AND QUANTUM COMPUTING APPARATUS COMPRISING THEREOF
Organization Name
Inventor(s)
Johannes Heinsoo of Espoo (FI)
TUNABLE RESONATOR-RESONATOR COUPLING CIRCUIT AND QUANTUM COMPUTING APPARATUS COMPRISING THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240030913 titled 'TUNABLE RESONATOR-RESONATOR COUPLING CIRCUIT AND QUANTUM COMPUTING APPARATUS COMPRISING THEREOF
Simplified Explanation
The invention is a tunable resonator-resonator coupling circuit for quantum computing that provides both direct and indirect couplings between linear or nonlinear resonators. The indirect coupling is achieved using a tunable coupling element consisting of two ungrounded superconducting islands. This allows for different signs of coupling frequencies, enabling more efficient control of the interaction between the resonators. The design, calibration, and operation of the circuit with this tunable coupling element are simpler and easier compared to existing analogues, while maintaining or improving performance. The patent also includes a quantum computing apparatus using one or more of these circuits.
- The invention is a tunable resonator-resonator coupling circuit for quantum computing.
- It provides both direct and indirect couplings between linear or nonlinear resonators.
- The indirect coupling is achieved using a tunable coupling element consisting of two ungrounded superconducting islands.
- Different signs of coupling frequencies can be provided for the resonators and superconducting islands, allowing for more efficient control of the interaction between the resonators.
- The design, calibration, and operation of the circuit with this tunable coupling element are simpler and easier compared to existing analogues.
- The invention can be used in a quantum computing apparatus.
Potential Applications
- Quantum computing
- Quantum information processing
- Quantum simulations
- Quantum communication
Problems Solved
- Inefficient control of interaction between resonators in quantum computing circuits
- Complex design, calibration, and operation of existing resonator-resonator coupling circuits
- Limited performance of existing analogues
Benefits
- More efficient control of interaction between resonators
- Simpler and easier design, calibration, and operation of the circuit
- Improved performance or similar performance compared to existing analogues
- Potential for advancements in quantum computing technology
Original Abstract Submitted
the invention is generally related to the field of quantum computing and particularly to a tunable resonator-resonator coupling circuit that provides both direct and indirect couplings between linear or nonlinear resonators. the indirect coupling is provided by using a tunable coupling element that comprises two ungrounded superconducting islands. since the superconducting islands are ungrounded, it is possible to provide different signs of coupling frequencies for the resonators and the superconducting islands, which in turn allows the interaction between the first and second resonators to be controlled more efficiently. moreover, the design, calibration, and operation of the circuit with such a tunable coupling element are significantly easier and simpler compared to the existing analogues, while providing the same or even better performance. a quantum computing apparatus using one or more such circuits is also provided.
