October 10, 2024

High-Fidelity Robust Qubit Control by Phase-Modulated Pulses 

In the realm of superconducting qubits, significant efforts have been dedicated to optimizing control pulses, primarily by refining pulse envelopes to minimize unwanted excitations. This seminar presents innovative research from Prof. Gheorghe-Sorin Paraoanu's lab at Aalto University, Finland, published in Physical Review Research, where a novel approach to qubit control is introduced. By phase-modulating the control pulses, this method achieves resilience against both amplitude and frequency errors. We explore the theoretical foundations and experimental demonstrations conducted on a circuit-QED system, showcasing robustness against both types of errors. (Phys. Rev. Research 6, 013188 – Published 21 February 2024).

The seminar is presented by Marko Kuzmanovic, with Michaela Eichinger hosting the event.

• Marko Kuzmanovic
  Postdoc
  Aalto University Department of Applied Physics
  Joined the Aalto University Department of Applied Physics in late 2020, as a postdoc working in the team lead by Prof. Gheorghe-Sorin Paraoanu. There he primarily works on novel control schemes for, as well as sensing using, superconducting quantum circuits. 
  
  
  
• Michaela Eichinger, PhD
  Product Solutions Physicist
  Quantum Machines
  Michaela Eichinger is a Product Solutions Physicist at Quantum Machines, holding a Ph.D. in Experimental Quantum Physics from the Niels Bohr Institute in Copenhagen, Denmark. With a background in superconducting qubits and circuits, gained in the labs of Charlie Marcus and Morten Kjaergaard, she guides product development and technological strategy, manages key client accounts, and creates technical resources that drive Quantum Machines' unique control solutions forward.
  
  

For any follow-up questions: fabio@quantum-machines.co.