Synthetic spins in microwave cavities

微波腔中的合成自旋

• 批准号: 580913-2022
• 负责人: Royer, BaptisteB
• 金额: $ 1.82万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=763391
• 关键词: Synthetic; spins; microwave; cavities

Quantum computing promises to revolutionize many areas such as quantum chemistry, machine learning and cryptography. However, useful quantum computations are still out of reach because current quantum bits (qubits) are noisy, thus limiting how long quantum information can be preserved. Quantum error-correction codes can solve this problem by redundantly encoding a logical qubit into a larger state space. This allows errors to be detected and corrected before the quantum information is corrupted. A promising strategy towards quantum error correction is to encode logical qubits into microwave cavities, which can exhibit longer lifetimes than other types of qubits. In this collaborative project, we want to investigate both theoretically and experimentally a new class of quantum error-correcting codes that can be implemented in microwave cavities. These new codes promise to have high error-correcting capabilities, and allow the easy implementation of several logical operations. This project will advance the state of the art for quantum computing, and is therefore relevant for Canadian start-ups working towards building a quantum computer.

量子计算有望彻底改变许多领域，如量子化学，机器学习和密码学。然而，有用的量子计算仍然遥不可及，因为当前的量子比特（qubit）是有噪声的，从而限制了量子信息可以保存的时间。量子纠错码可以通过将逻辑量子比特冗余编码到更大的状态空间来解决这个问题。这允许在量子信息被破坏之前检测和纠正错误。量子纠错的一个有前途的策略是将逻辑量子比特编码到微波腔中，这可以比其他类型的量子比特表现出更长的寿命。在这个合作项目中，我们希望从理论和实验上研究一类可以在微波腔中实现的新的量子纠错码。这些新的代码承诺具有很高的纠错能力，并允许几个逻辑操作的简单实现。该项目将推动量子计算的发展，因此与加拿大致力于建造量子计算机的初创企业有关。