Events on Friday, August 29th, 2025
- Qualifying Exam - Electricity and Magnetism
- Time: 9:00 am - 10:30 am
- Place: 2241 CH
- Host: Sharon Kahn
- Qualifying Exam - Quantum Mechanics
- Time: 11:30 am - 1:00 pm
- Place: 2241 CH
- Host: Sharon Kahn
- Progress toward efficient quantum networking with neutral atoms
- Time: 2:00 pm - 4:00 pm
- Place: B343 Sterling
- Speaker: Eunji Oh, Physics PhD Graduate Student
- Abstract: Development of quantum networks that interconnect multiple quantum processors is a central goal in quantum information science. Such networks enable remote entanglement, distributed quantum computing and quantum sensing. To make this possible, it is crucial to realize a robust and scalable platform which can serve as a building block of a quantum network. In this talk, I will present our recent progress toward building a quantum networking node capable of storing, processing, and distributing quantum information. Our system uses a compact, fiber-integrated, plug-and-play architecture based on a parabolic mirror, with two such nodes currently in operation. I will highlight our efforts to generate atom-photon entanglement between a stationary qubit (Rb-87 atom) and a flying qubit (photon), as well as discuss our future plans for achieving atom-atom entanglement - a key primitive for long-distance quantum networking. In addition to our networking efforts, I will also present our development of a fast and scalable method in controlling the quantum state of qubits in large 2D arrays. While spatial light modulators (SLMs) offer flexible control, their slow response times limit their use in fast quantum gate operations. We address this by combining an SLM with a high-speed deflector to create a hybrid beam scanner. This approach enables rapid, site-selective quantum state manipulation with addressing rates orders of magnitude faster than SLMs alone.
- Host: Mark Saffman