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Quantum BC Seminar Series – NSERC CREATE Graduate Student Presentations

August 8, 2023 @ 2:00 pm - 3:00 pm

Please join us on August 8 at 2pm BC Time to hear three NSERC CREATE in Quantum Computing Scholars share their research:
1. Jamal Mohammad Khani, MSc Physics Student, University of Victoria
Title: All-Optical Quantum C-Phase Gate Using Rb Atoms.
2. Phillip Suwan Kirwin, MASc ECE Student, University of British Columbia
Title: Integrated Quantum Transducers
3. Daniel Julien-Neitzert, MASc ECE Student, University of British Columbia
Title: Fibre Optics Based Quantum Computer Control and Readout

Join on Zoom: https://ubc.zoom.us/j/69443327772?pwd=TGhhTXFIQ3ZiUmNrN0pUa3FObTNydz09

Meeting ID: 694 4332 7772

Passcode: 996727

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1. Jamal Mohammad Khani, MSc Physics Student, University of Victoria
Title: All-Optical Quantum C-Phase Gate Using Rb Atoms.
Abstract: Neutral atoms are a promising candidate for creating giant optical nonlinearities. Previous experimental work has failed to produce a sufficiently large phase shift due in part to weak light-atom coupling. We aim to overcome this limitation and achieve a large Cross-Phase modulation by incorporating an optical resonator to our atomic system. This result will be an important step to an optical C-Phase gate.
Bio: Jamal Mohammad Khani, a Physics M.Sc. student at the University of Victoria, is currently conducting research under the guidance of Prof. Andrew MacRae. His work focuses on developing a high-fidelity quantum control-phase gate using Rb atoms. Jamal holds a B.Sc. in Physics, during which he specialized in the simulation of trapping and controlling ultracold atoms and BECs using permanent magnetic lattices. Additionally, he made contributions to a research paper that explored the transformation of bright solitons to dark solitons using a Mach-Zehnder modulator during his B.Sc. studies.
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Phillip Suwan Kirwin, MASc ECE Student, University of British Columbia
Title: Integrated Quantum Transducers

Abstract: Useful quantum computers may be built in modules, with optical fibres linking collections of qubits together. To facilitate such modular design in superconducting and spin-based quantum computing architectures, a coherent microwave-to-optical link is required. These so-called quantum transducers aim to coherently transfer the quantum states of photons between the microwave and optical domains. In this talk, I will give an overview of integrated quantum transducers. I will discuss the key figures of merit, engineering challenges, and leading physical implementations.

Bio: Phillip Suwan Kirwin is a MASc student in the Stewart Blusson Quantum Matter Institute at the University of British Columbia, advised by Lukas Chrostowski, Jeff Young, and Joseph Salfi. His research interests are in integrated quantum photonics and quantum transducers. Phillip holds a BSc in Electrical Engineering from the University of Alberta. He is an alumnus of the Canada-Japan Co-op Program, where he interned in the Quantum Optical Physics Group at Nippon Telegraph and Telephone.

Daniel Julien-Neitzert, MASc ECE Student, University of British Columbia                                          Title: Fibre Optics Based Quantum Computer Control and Readout

Abstract: State-of-the-art quantum computers can only solve problems that are also easily tackled with classical computers. To provide a practical quantum advantage and solve real-world problems, the number of qubits needs to be scaled to more than ~ 100 using today’s approaches. A major challenge, often overlooked, is that existing approaches to control and measure qubits will encounter a scaling bottleneck at around 1000 qubits, which is only a few years away for superconducting circuits, and is nowhere near the million qubits needed to simulate catalysts and molecules. Current I/O interfaces are complex to build, compromising reliability and scalability, have limited bandwidth to control and read many qubits, and dissipate too much power to be useful at scale. We propose control circuits that are composed of photonic integrated circuit elements that will replace the costly, complex, and inherently unscalable method for control used today – discrete coaxial cables and large bulky electronics – to be entirely replaced by fibre optics based quantum computer control and readout systems.

Bio: Daniel Julien-Neitzert is with the Department of Electrical and Computer Engineering at the University of British Columbia. His current research is focused quantum computing hardware and integrated photonics

Details

Date:
August 8, 2023
Time:
2:00 pm - 3:00 pm
Website:
Auhttps://ubc.zoom.us/j/69443327772?pwd=TGhhTXFIQ3ZiUmNrN0pUa3FObTNydz09