[webinar] IEEE SCV-EDS: Investigating quantum speed limits with superconducting qubits

The Electron Devices Society Santa Clara Valley/San Francisco joint Chapter is hosting Prof. Meenakshi Singh. The title of the lecture is ‘Investigating quantum speed limits with superconducting qubits’

When: Friday, Oct. 20, 2023 – 9am to 10am (PDT)
Where: This is an online event and attendees can participate via Zoom.

Registration or Send an email to hiuyung.wong at ieee.org to get the zoom link indicating if you are IEEE member, IEEE EDS member, IEEE Student member

Abstract: The speed at which quantum entanglement between qubits with short range interactions can be generated is limited by the Lieb-Robinson bound. Introducing longer range interactions relaxes this bound and entanglement can be generated at a faster rate. The speed limit for this has been analytically found only for a two-qubit system under the assumption of negligible single qubit gate time. We seek to demonstrate this speed limit experimentally using two superconducting transmon qubits. Moreover, we aim to measure the increase in this speed limit induced by introducing additional qubits (coupled with the first two). Since the speed up grows with additional entangled qubits, it is expected to increase as the system size increases. This has important implications for large-scale quantum computing.

Speaker Bio: Dr. Singh is an experimental physicist with research focused on quantum thermal effects and quantum computing. She graduated from the Indian Institute of Technology with an M. S. in Physics in 2006 and received a Ph. D. in Physics from the Pennsylvania State University in 2012. Her Ph. D. thesis was focused on quantum transport in nanowires. She went on to work at Sandia National Laboratories on Quantum Computing as a post-doctoral scholar. She is currently an Associate Professor in the Department of Physics at the Colorado School of Mines. At Mines, her research projects include measurements of spin-orbit coupling in novel materials and thermal effects in superconducting hybrids. She recently received the NSF CAREER award to pursue research in phonon interactions with spin qubits in silicon quantum dots.

[Workshop] QIP

Silicon Quantum Information Processing (QIP) Workshop

Glasgow Marriott Hotel

Wednesday, Sept. 20, 2023

Silicon Quantum Information Processing (QIP) is highly appealing due to excellent spin qubit performances and the expertise of the integrated circuit industry in device scaling. Demonstrations of long-lived, high-fidelity silicon qubits, multi-qubit gates and spin–photon coupling, are promising for the control and interconnect of QIP architectures. Recently, spin qubits in related semiconductors (e.g. germanium) have also emerged as promising implementations of scalable quantum hardware. The formidable challenge of scaling these systems to the level required for meaningful computational applications has also brought to the fore the need for robust cryo-CMOS electronics, which will enable fast control and data processing, as well as schemes to correct errors and protect against decoherence. This meeting will bring together leading researchers from the QIP communities of silicon and related semiconductors, as well as cryo-CMOS designers and engineers who are working at different layers of the “quantum stack”.

10:00AM- 10:10AM	Introduction
10:10AM- 10:40AM	Pablo Cova Farina Quantum dot ladders for quantum computation and simulation
10:40AM-11:00AM	Federico Fedele Automatic techniques for fast and automatic all-rf tuning of quantum devices
11:00AM-11:30AM	Mark Johnson Rapid characterisation of over 1000 silicon quantum dots
11:30AM-11:50AM	Break and refreshments
11:50AM-12:20PM	Gian Salis How are hole-spin qubits in Ge/SiGe heterostructures driven and why do they decohere?
12:20PM-12:40PM	Ross Leon Exchange control in a MOS double quantum dot made on a 300mm process
12:40PM-1:10PM	Asen Asenov A Methodology for Cryogenic PDK Re-Centering Using Experimental Data and TCAD Simulations
1:10PM-2:30PM	Lunch
2:30PM-3:00PM	Masoud Babaie A Cryo-CMOS Receiver for Spin Qubit Gate-Based Readout: from Modelling to Implementation and Verification
3:00PM-3:20PM	Mathieu de Krujif Measurement of classical electronics heating a local quantum dot thermometer in silicon
3:20PM-3:40PM	Janne Lehtinen Custom CMOS platform for quantum processor units
3:40PM-4:00PM	Stavroula Kapoulea Towards the Development of Quantum Computing System-On-Chip: Bringing Electronics Closer to Qubits
4:00PM-4:10PM	Concluding remarks
4:10PM-5:00PM	Refreshments
5:00PM-6:00PM	Lab tour
7:00PM-9:00PM	Conference Dinner