17932656. GENERATING DC OFFSETS IN FLUX-TUNABLE TRANSMONS WITH PERSISTENT CURRENT LOOPS simplified abstract (International Business Machines Corporation)

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 17932656 titled 'GENERATING DC OFFSETS IN FLUX-TUNABLE TRANSMONS WITH PERSISTENT CURRENT LOOPS

Simplified Explanation

The patent application describes a quantum circuit device with a qubit chip containing fixed frequency qubits and flux tunable couplers, connected by a wiring layer with a loop and a flux bias line.

• The qubit chip includes a lattice structure of fixed frequency qubits, each coupled to a flux tunable coupler.
• The wiring layer has a loop made of superconducting material inductively coupled to the flux tunable couplers.
• A flux bias line, made of a different superconducting material, is inductively coupled to both the loop and the flux tunable couplers.

Potential Applications

This technology could be applied in quantum computing, quantum communication, and quantum sensing applications.

Problems Solved

This innovation helps in achieving better control and manipulation of qubits in quantum circuits, leading to improved performance and reliability.

Benefits

The device offers enhanced qubit coherence and tunability, enabling more efficient quantum operations and algorithms.

Potential Commercial Applications

Potential commercial applications include quantum computers, quantum sensors, and quantum communication systems.

Possible Prior Art

One possible prior art could be the use of superconducting loops and flux tunable couplers in quantum devices for qubit control and manipulation.

How does this technology compare to existing quantum circuit devices in terms of qubit coherence and control?

This article does not provide a direct comparison with existing quantum circuit devices in terms of qubit coherence and control. Further research or testing may be needed to assess the performance of this technology in comparison to others.

What are the specific challenges in scaling up this technology for practical quantum computing applications?

The article does not address the specific challenges in scaling up this technology for practical quantum computing applications. Additional studies or experiments may be required to determine the scalability and feasibility of implementing this technology on a larger scale.

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.