17930941. MULTI-MODE COUPLERS FOR ENHANCED CONNECTIVITY simplified abstract (INTERNATIONAL BUSINESS MACHINES CORPORATION)
MULTI-MODE COUPLERS FOR ENHANCED CONNECTIVITY
Organization Name
INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor(s)
Aaron Finck of White Plains NY (US)
Oliver Dial of Yorktown Heights NY (US)
Jiri Stehlik of New York NY (US)
MULTI-MODE COUPLERS FOR ENHANCED CONNECTIVITY - A simplified explanation of the abstract
This abstract first appeared for US patent application 17930941 titled 'MULTI-MODE COUPLERS FOR ENHANCED CONNECTIVITY
Simplified Explanation
The patent application describes techniques and couplers for managing coupling between qubits, specifically focusing on tuneable coupler qubits (TCQs) with multiple frequency modes.
- A first TCQ consists of a first frequency mode and a second frequency mode, while a second TCQ consists of a third frequency mode and a fourth frequency mode.
- The first TCQ can be selectively coupled to a first qubit based on the first frequency mode and selectively coupled to the second TCQ based on the second and third frequency modes.
- The second TCQ can be selectively coupled to a second qubit based on the fourth frequency mode.
- By applying specific magnetic fluxes to the TCQs, ZZ interaction between qubits can be suppressed or excited to create entangled gates.
Potential Applications
This technology can be applied in quantum computing systems to improve qubit coupling and interaction, leading to more efficient quantum operations and computations.
Problems Solved
This innovation addresses the challenge of managing coupling between qubits in quantum systems, allowing for better control over interactions and reducing unwanted effects like ZZ interaction.
Benefits
- Enhanced control over qubit coupling - Suppression of unwanted interactions - Creation of entangled gates for quantum operations
Potential Commercial Applications
Optimizing Qubit Coupling for Improved Quantum Computing Performance
Original Abstract Submitted
Techniques and couplers for managing coupling between qubits are presented. A first tuneable coupler qubit (TCQ) can comprise a first frequency mode and a second frequency mode. A second TCQ can comprise a third frequency mode and a fourth frequency mode. First TCQ can be selectively coupled to a first qubit based on the first frequency mode and selectively coupled to the second TCQ based on the second and third frequency modes. Second TCQ can be selectively coupled to a second qubit based on the fourth frequency mode. When certain respective magnetic fluxes are applied to first and second TCQs, ZZ interaction between the first and second qubits can be suppressed. When respective modified magnetic fluxes are applied to first and second TCQs to excite respective frequency modes, coupling can occur, and ZZ interaction and an entangled gate can be created between the first and second qubits.
