Daniel Higginbottom
@quantumdan.bsky.social
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.
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
Giant Isotope Effect on the Excited-State Lifetime and Emission Efficiency of the Silicon T Centre
Efficient single-photon emitters are desirable for quantum technologies including quantum networks and photonic quantum computers. We investigate the T centre, a telecommunications-band emitter in sil...
arxiv.org
October 29, 2025 at 6:04 PM
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...
October 6, 2025 at 10:46 PM
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
@photonicinc.bsky.social @sfuphysics.bsky.social
September 19, 2025 at 7:13 PM
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
@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
September 16, 2025 at 9:33 PM
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
Reposted by Daniel Higginbottom
"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...
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...
Canada had – and lost – its lead in AI. Can it avoid making the same mistake in the next emerging global technology race?
Canada is positioned to benefit economically from quantum computing, but can it keep up with other countries pouring billions into their own industries?
www.theglobeandmail.com
September 14, 2025 at 3:43 PM
"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...
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
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
Electrically triggered spin–photon devices in silicon
Nature Photonics - Two types of on-chip silicon device utilizing silicon T centres are developed: an O-band light-emitting diode and an electrically triggered single-photon source. Further, a new...
rdcu.be
September 11, 2025 at 9:28 PM
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
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.
Celebrate the International Year of Quantum with @sfuphysics.bsky.social this Saturday, May 3! Try hands-on activities, learn about quantum’s history and future, and how it affects your life every day. www.sfu.ca/physics/news...
May 1, 2025 at 4:19 AM
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.
Reposted by Daniel Higginbottom
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 🧪 ⚛️ 🎢 🇨🇦
Quantum Canada Open Doors 2025 - everybody is invited!
www.sfu.ca
April 29, 2025 at 10:06 PM
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 🧪 ⚛️ 🎢 🇨🇦
Reposted by Daniel Higginbottom
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/...
Lead the Way: Graduate Studies at SFU in Canada for Fall 2025 & Spring 2026
Select SFU graduate programs are opening their applications particularly for Canadian students choosing to remain and study in Canada as well as US students looking to study outside the US. Applicatio...
www.sfu.ca
April 16, 2025 at 6:44 PM
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 spectral fluctuations of integrated T centres are primarily laser-driven, and resonance checks can significantly increase entanglement rates in T centre quantum networks.
Laser-induced spectral diffusion and excited-state mixing of silicon T centres
To find practical application as photon sources for entangled optical resource states or as spin-photon interfaces in entangled networks, semiconductor emitters must produce indistinguishable photons ...
arxiv.org
April 24, 2025 at 5:30 PM
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 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.
March 16, 2025 at 8:05 PM
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.
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.
Big thanks to the SQT team and our industry partners Photonic Inc.
January 23, 2025 at 1:25 AM
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.
Big thanks to the SQT team and our industry partners Photonic Inc.