Multi-mode bosonic quantum computing with superconducting cavities

量子计算机有望在无数重要的计算任务中大幅提高效率。玻色子系统由于具有许多基本和实用的优点而被认为是很有前途的量子计算体系结构。然而，由于有更多可用的量子态，为玻色子量子计算机开发算法和控制策略通常具有挑战性；应对这些挑战是SFU Lau团队的研究重点。该联盟国际量子基金旨在建立合作，将Lau小组开发的玻色子算法和控制策略应用于罗格斯大学Chakram小组开发的多模超导腔装置。Chakram小组的设备结合了卓越的可控性和高质量因素，因此它是实现玻色子量子计算的通用平台。作为一个先驱项目，该Catalyst基金将支持实现玻色子-量子比特纠缠转换的研究。该方案的成功实现可以将生成效率极高的玻色子纠缠转换为量子比特纠缠，从而实现广泛的量子计算算法。这将极大地推动实用量子计算机的发展。

The quantum computer is expected to offer dramatically improved efficiency in countless important computational tasks. Bosonic systems have been regarded as promising quantum computing architectures due to many fundamental and practical advantages. However, developing algorithms and control strategies for bosonic quantum computers are generally challenging due to the many more available quantum states; tackling these challenges is the research focus of Lau group at SFU. This Alliance International Quantum grant is intended to establish a collaboration to implement the bosonic algorithms and control strategies developed by Lau group on the multi-mode superconducting cavity device developed by Chakram group at Rutgers University. The device by Chakram group incorporates exceptional controllability and high quality factors, it is thus a versatile platform for implementing bosonic quantum computing. As a pioneer project, this Catalyst grant will support the investigation of realizing bosonic-qubit entanglement conversion. Successfully realizing this scheme can convert the bosonic entanglement, which can be generated extremely efficiently, to qubit entanglement, which can be used to implement a wide range of quantum computing algorithms. This will significantly boost the development of practical quantum computers.