Phys.org covered some recent work of ours on the vibrational modes of silicon T centre isotopic variants: phys.org/news/2026-02...
Posts by Daniel Higginbottom
Students from our Silicon Quantum Technology Lab at Quantum Days 2026 in Victoria, BC. A big shout out to the conference organizers for bringing so many talented quantum folks together.
Congratulations to my PhD student Moein Kazemi for winning the top poster prize at Quantum Days 2026! Read our paper on this work here: doi.org/10.1103/4mpw...
Delighted to present the recent work of our Silicon Quantum Technology lab at SFU at the Quantum Days conference in Victoria, BC today.
New PRL! We find a giant isotope effect in silicon T centres: swapping H → D massively boosts lifetime and emission efficiency. Great modelling from Mark Turiansky (NRL). Lead authors Moein Kazemi & Mehdi Keshavarz pictured in our lab at @sfuphysics.bsky.social.
journals.aps.org/prl/abstract...
New paper out now in PRB! We discuss protecting T centre qubits during entanglement attempts. journals.aps.org/prb/abstract...
Beautiful work by PhD student Nick Brunelle and SQT alumnus Joshua Kanaganyagam with collab by Geoffroy Hautier's team at Rice University and @photonicinc.bsky.social.
Just in time for the holidays! arxiv.org/abs/2512.16047
Our PhD student Nicholas Brunelle measures the hyperfine coupling between the silicon T centre electron “communication” qubit and its H nuclear “memory” qubit—unlocking an unusual protection scheme against optically induced decoherence.
Yes! At least for other C-H silicon colour centres. We have observed the same effect for the silicon I and M centres (keep an eye out for the upcoming paper).
Surprising result! Our team found 5x longer deuterated T centre lifetimes. Heavier mass lowers C–H stretch energy, suppressing phononic decay. Near-perfect emission efficiency, unheard of for silicon colour centres, means better quantum light sources and quantum repeaters! arxiv.org/abs/2510.23862
Delighted to see this News and Views article on our recent manuscript. Great perspective from Benjamin Pingault. www.nature.com/articles/s41...
You can read more about this work in a blog post by lead author Camille Bowness written for our industry partner Photonic Inc. photonic.com/blog/the-t-c...
@photonicinc.bsky.social @sfuphysics.bsky.social
In our new PRX Quantum paper, PhD student Camille Bowness & postdoc Simon Meynell study spectral wandering of single colour centres in silicon nanocavities. We show wandering is mainly laser-induced, and narrow the effective excitation linewidth using a resonance-check scheme. go.aps.org/3IjO63h
"Quantum leap
Canada had – and lost – its lead in AI. Can it avoid making the same mistake in the next emerging global technology race?" 🎁🔗
www.theglobeandmail.com/gift/54582f8...
Excited to share our new paper by PhD student Michael Dobinson in Nature Photonics: rdcu.be/eFFQf
We show single-photon emission + spin initialization by electrical injection in cavity-enhanced, single-defect silicon diodes. Much more to come on these devices!
#SFU #QuantumTech
This Saturday, to celebrate the International Year of Quantum, we're opening our labs to tours and I'll be speaking about our work at SFU building the quantum internet. Come join us and see a quantum physics lab in action.
Come join us @sfuphysics.bsky.social #SFU on Burnaby Mountain this Saturday May 3rd for our Quantum Canada Open Doors 2025 event. There will be talks about our quantum research, hands-on activities and lab tours. #YVR 🧪 ⚛️ 🎢 🇨🇦
Applications are open for select graduate studies programs at #SFU, including biomedical physiology, chemistry, molecular biology and @sfuphysics.bsky.social. Canadian and US students encouraged to apply by April 25. www.sfu.ca/gradstudies/...
Very excited to share a new preprint by my PhD student Camille Bowness and postdoc Simon Meynell: arxiv.org/abs/2504.09908
The spectral fluctuations of integrated T centres are primarily laser-driven, and resonance checks can significantly increase entanglement rates in T centre quantum networks.
The Silicon Quantum Technology lab has arrived for the American Physical SocietyGlobal Physics Summit 2025 (#APSSummit25)! Look out for talks by our students Austin Woolverton and Michael Dobinson and postdoc Simon Meynell to get all the latest updates on silicon colour centre quantum technologies.
Congratulations! It's a beautiful experiment.
Check out our new preprint by PhD student Michael Dobinson! We demonstrate the first electrically-injected single-photon source with silicon colour centres and opto-electrically prepare a spin qubit. arxiv.org/abs/2501.10597
Big thanks to the SQT team and our industry partners Photonic Inc.