Building a programmable trapped ion quantum simulator

构建可编程俘获离子量子模拟器

• 批准号: RGPIN-2018-05250
• 负责人: Islam, KaziRajibul
• 金额: $ 3.35万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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=763009
• 关键词: Building; programmable; trapped; ion; quantum

Quantum computers, a grand challenge in the rapidly expanding field of experimental quantum information processing, are perhaps decades away. Quantum simulators - well-controlled experimental quantum systems to simulate specific quantum models are practical with current technologies. They can be useful in the near future to solve problems of quantum physics and chemistry, which are intractable on super-computers. Quantum simulators have indeed been built in recent times with several hardware platforms, such as trapped-ions, ultra-cold neutral atoms, and some solid state systems. They have been used to study models of quantum many-particle systems, such as interacting electrons tunneling on a lattice in a condensed matter system, or models of quantum magnetism. However, current quantum simulators either have too few qubits to be practically useful, or are restricted to solve only a few specific problems, such as a specific quantum model on a fixed geometry. My research program concerns both of these problems and has the ultimate goal of building a quantum simulator with over a hundred trapped-ion qubits that are programmable at the level of individual qubits and interactions between them. In the next 5 years, our research will be carried out in two parallel efforts by graduate students, postdoctoral fellows, and undergraduate researchers. The first effort aims to realize arbitrarily programmable qubit-qubit interactions in about ten Yb+ ion qubits. This will enable the simulator to go beyond the physical geometry of the ion chain and solve quantum dynamics on re-configurable lattice geometry. We will develop a novel holographic optical method using Digital Light Projection (DLP) technology to individually address single ions. The second effort aims to increase the system size to many dozens of qubits. For this, we will develop a dual species quantum simulator (Yb+/Ba+), with Yb+ as the qubits and Ba+ as coolants to enhance quantum coherence. In the future, the two research efforts will be combined to realize a large quantum system that is arbitrarily programmable.HQPs will be trained in a broad range of topics, including safe operations of high power lasers, optics, electronics, DLP technology, ultra-high vacuum, ion traps, spectroscopy, quantum information sciences, quantum many-body physics, and atomic physics. These trainings will prepare HQPs well for future career options including academia and industry. This research program will contribute new fundamental and technical advances in the field of quantum information, and will further position Canada as a world leader in quantum information research, as there are only a handful of advanced quantum simulators in the world. The talent pool and expertise created will boost Canada's economy by contributing to the rapidly growing field of quantum technologies, which promise to fundamentally change our economy and society in near future.

量子计算机是快速发展的量子信息处理实验领域的一个巨大挑战，可能还需要几十年的时间。量子模拟器--用于模拟特定量子模型的控制良好的实验量子系统，在当前技术中是实用的。在不久的将来，它们可以用来解决量子物理和化学问题，这些问题在超级计算机上是棘手的。量子模拟器最近确实已经建立了几个硬件平台，如捕获离子，超冷中性原子和一些固态系统。它们已经被用来研究量子多粒子系统的模型，例如凝聚态系统中晶格上的相互作用电子隧穿，或者量子磁性模型。然而，目前的量子模拟器要么量子比特太少，实际上是有用的，或仅限于解决一些特定的问题，如一个特定的量子模型在一个固定的几何。我的研究计划涉及这两个问题，最终目标是构建一个量子模拟器，其中包含100多个捕获离子量子位，这些量子位可以在单个量子位和它们之间的相互作用水平上进行编程。在接下来的5年里，我们的研究将由研究生，博士后研究员和本科研究人员两个平行的努力进行。第一项工作的目标是在大约10个Yb+离子量子位中实现任意可编程的量子位-量子位相互作用。这将使模拟器能够超越离子链的物理几何形状，并在可重新配置的晶格几何形状上解决量子动力学问题。我们将开发一种新的全息光学方法，使用数字光投影（DLP）技术来单独寻址单个离子。第二项努力旨在将系统大小增加到数十个量子位。为此，我们将开发一个双物种量子模拟器（Yb+/Ba+），Yb+作为量子比特，Ba+作为冷却剂来增强量子相干性。未来，这两项研究工作将结合起来，实现可任意编程的大型量子系统。HQP将接受广泛的主题培训，包括高功率激光器的安全操作，光学，电子学，DLP技术，超高真空，离子阱，光谱学，量子信息科学，量子多体物理和原子物理。这些培训将使HQP为未来的职业选择做好准备，包括学术界和工业界。该研究计划将为量子信息领域带来新的基础和技术进步，并将进一步将加拿大定位为量子信息研究的世界领导者，因为世界上只有少数先进的量子模拟器。创造的人才库和专业知识将通过为快速增长的量子技术领域做出贡献来促进加拿大的经济，这有望在不久的将来从根本上改变我们的经济和社会。