Daniel Higginbottom
Professor, SFU Department of Physics, and a Director at the quantum technology company Photonic Inc. Spins, photons, and all things quantum information. Follow me to learn about our work at SFU's Silicon Quantum Technology lab.
- 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.
- 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...
- 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
- 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
- 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
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- 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.
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- Reposted by Daniel HigginbottomApplications 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/...
