EQUS Seminar Series: Abhijeet Alase

Date: Monday 18th March

Time: 09:00am – 10:00pm AWST, 11:00am -12:00pm AEST, 12:00pm- 1:00pm AEDT.

Speaker: Abhijeet Alase

Title: The realization of fault-tolerant quantum computers hinges on the development of highly robust qubits

Bio: Abhijeet Alase obtained a PhD in Physics from Dartmouth College (USA) in 2019. Under the supervision of Dr. Lorenza Viola, his PhD thesis focused on the boundary physics and the bulk-boundary correspondence in topological phases of matter. After PhD, he joined Dr. Barry Sanders' and Dr. David Feder's research groups at the Institute for Quantum Science and Technology (IQST), University of Calgary (Canada). where he held the prestigious Killam Postdoctoral Fellowship. His research at the University of Calgary explored many topics in condensed matter physics and quantum information science, including quantum simulation using ultracold atoms, quantum algorithms, topological quantum sensing, Majorana-based topological quantum computation, PT symmetry and foundations of quantum mechanics. He joined the University of Sydney as a Postdoctoral Research Fellow in Quantum Information Theory in August 2022. His research focuses on the applications of topological phases for quantum technologies.

Abstract: The realization of fault-tolerant quantum computers hinges on the development of highly robust qubits. A promising avenue to achieve such resilience involves harnessing long-range entanglement patterns within topological systems. At the forefront of these efforts are topological superconducting systems, specifically those hosting Majorana modes. However, Majorana-based qubits are susceptible to a class of errors known as quasiparticle poisoning errors, which persist despite the inherent topological properties. This talk aims to provide an overview of the compelling concepts underpinning Majorana-based quantum computation grounded in topological phases of matter. I will then describe how the quasiparticle poisoning errors can be tackled if quasiparticle excitations in the systems could be detected locally, thereby bolstering the performance of Majorana-based qubits.

Recordings of past seminars are available to EQUS members via the Hub (requires login).

Major funding support

Australian Research Council

The Australian Research Council Centre of Excellence for Engineered Quantum Systems (EQUS) acknowledges the Traditional Owners of Country throughout Australia and their continuing connection to lands, waters and communities. We pay our respects to Aboriginal and Torres Strait Islander cultures and to Elders past and present.