International business machines corporation (20240095564). GENERATING DC OFFSETS IN FLUX-TUNABLE TRANSMONS WITH PERSISTENT CURRENT LOOPS simplified abstract

GENERATING DC OFFSETS IN FLUX-TUNABLE TRANSMONS WITH PERSISTENT CURRENT LOOPS

Organization Name

international business machines corporation

Inventor(s)

Devin Underwood of Bronx NY (US)

Jiri Stehlik of New York NY (US)

Oliver Dial of Yorktown Heights NY (US)

David Lokken-toyli of White Plains NY (US)

GENERATING DC OFFSETS IN FLUX-TUNABLE TRANSMONS WITH PERSISTENT CURRENT LOOPS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240095564 titled 'GENERATING DC OFFSETS IN FLUX-TUNABLE TRANSMONS WITH PERSISTENT CURRENT LOOPS

Simplified Explanation

The quantum circuit device described in the patent application includes a qubit chip with multiple qubits and flux tunable couplers. The qubits are arranged in a lattice structure, with each pair of qubits coupled to a flux tunable coupler. A wiring layer with a loop made of superconducting material is inductively coupled to the flux tunable couplers. Additionally, a flux bias line made of a different superconducting material is inductively coupled to both the loop and the flux tunable couplers.

• Qubit chip with multiple qubits and flux tunable couplers
• Qubits arranged in a lattice structure
• Wiring layer with a loop made of superconducting material
• Flux bias line made of a different superconducting material
• Inductive coupling between loop, flux tunable couplers, and flux bias line

Potential Applications

The technology described in the patent application could have potential applications in:

• Quantum computing
• Quantum communication
• Quantum information processing

Problems Solved

The technology addresses the following problems:

• Enhancing qubit coherence and stability
• Improving quantum circuit performance
• Increasing scalability of quantum systems

Benefits

The benefits of this technology include:

• Higher efficiency in quantum operations
• Enhanced control and manipulation of qubits
• Potential for faster and more powerful quantum computing

Potential Commercial Applications

The technology could be applied in various commercial sectors, such as:

• Information technology
• Telecommunications
• Defense and security

Possible Prior Art

One possible prior art in this field is the use of superconducting qubits and couplers in quantum circuits. Researchers have been exploring different configurations and materials to improve the performance of quantum devices.

How does the inductive coupling between the loop and the flux tunable couplers affect the overall performance of the quantum circuit device?

The inductive coupling helps in controlling the qubit states and interactions within the circuit. It is crucial for achieving precise and stable quantum operations.

What are the challenges in integrating the flux bias line made of a different superconducting material into the quantum circuit device?

Integrating different superconducting materials can pose challenges in terms of compatibility and performance optimization. It requires careful design and testing to ensure seamless operation of the device.

Original Abstract Submitted

a quantum circuit device includes a qubit chip including a plurality of qubits and a plurality of flux tunable couplers. a plurality of fixed frequency qubits are arranged in in a lattice structure, wherein each pair of the plurality of fixed frequency qubits is coupled to one flux tunable coupler. a wiring layer is coupled to the qubit chip, and the wiring layer includes a loop constructed of a superconducting material that is inductively coupled to the flux tunable couplers. a flux bias line is constructed of a superconducting material that is different than the superconducting material of the loop, wherein the flux bias line is inductively coupled to both the loop and the flux tunable couplers.