Associate Professor Alexei Gilchrist is a theoretical physicist in the research areas of quantum optics and quantum information. He received his PhD from Waikato University (New Zealand) in 1997 under the supervision of Professor Crispin Gardiner. Moving to Australia in 2001 as a New Zealand FRST Fellow, he remained in Australia as a Research Fellow for the ARC Centre of Excellence for Quantum Computer Technology until becoming part of the faculty as Macquarie University in 2007. Associate Professor Gilchrist was appointed as an EQuS CI in 2011.

Major funding support

2011- 2017 Chief Investigator in the ARC Centre of Excellence for Engineered Quantum Systems (EQuS)

Mentoring and research training

If you are interested in working or studying with Associate Professor Gilchrist, please contact him.

PhD, Waikato University, New Zealand (1997)
Quantum simulations and boson sampling 

Grand challenge: Produce programmable quantum simulators capable of outperforming the best classical technology 

A surprising question that remains open is where does the advantage in quantum algorithms actually come from? That is, where can we expect that using a quantum device will be more efficient than using a classical device. One avenue to tackling this question is to study the simplest controlled quantum systems that can lead quickly to a device that cannot be simulated with classical resources. Boson Sampling is one such architecture, and is one particularly well suited to implementation in photonic systems. We have presented an architecture for arbitrarily scalable Boson Sampling using two nested fiber loops, and which employs time-bin encoding. This architecture has fixed experimental complexity, irrespective of the size of the desired interferometer, and its scale is limited only by fiber and switch loss rates, making its implementation much more desirable. 

Current Supervision

Doctor Philosophy - Principal Advisor

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Major funding support

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