Chunqing Deng

Title: Innovations by Chunqing Deng in Quantum Processing

Introduction

Chunqing Deng is a notable inventor based in Coquitlam, Canada. He has made significant contributions to the field of quantum processing, holding 2 patents that focus on enhancing the functionality and efficiency of quantum systems. His work is pivotal in advancing the capabilities of quantum processors.

Latest Patents

Deng's latest patents include innovative systems and methods for coupling qubits in a quantum processor. One of his patents discusses how Josephson junctions (JJ) can replace the primary inductance of transformers to achieve galvanic coupling between qubits, thereby reducing size. This long-range symmetric coupler features a compound JJ (CJJ) positioned at a halfway point along the coupler, which provides a higher energy of the first excited state compared to an asymmetric long-range coupler. Additionally, his patents explore the integration of qubits and couplers with a non-stoquastic Hamiltonian to enhance multi-qubit tunneling during annealing. The designs also incorporate additional shunt capacitances to improve overall quality and quantum coherence.

Another patent focuses on increasing analog processor connectivity. It presents topologies for analog computing systems where qubits are grouped into cells, with inter-cell couplers connecting adjacent cells. Some cells are coupled to non-adjacent cells through long-range couplers, which are arranged to minimize the number of couplers needed while maintaining effective connectivity.

Career Highlights

Chunqing Deng is currently employed at D-Wave Systems Inc., a company renowned for its pioneering work in quantum computing. His role involves developing advanced quantum technologies that push the boundaries of what is possible in the field.

Collaborations

Deng collaborates with esteemed colleagues such as Paul I Bunyk and Kelly T R Boothby. Their combined expertise contributes to the innovative projects at D-Wave Systems Inc., fostering a collaborative environment that enhances research and development in quantum processing.

Conclusion

Chunqing Deng's contributions to quantum processing through his patents and work at D-Wave Systems Inc. highlight his role as a leading inventor in the field. His innovative approaches to qubit coupling and analog processor connectivity are paving the way for future advancements in quantum technology.