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Daniel Higginbottom

@quantumdan.bsky.social
110 followers 344 following 26 posts

Professor, SFU Department of Physics, and a Director at Photonic Inc. Spins, photons, and all things quantum information. Follow me to learn about our work at SFU's Silicon Quantum Technology lab (www.sfu.ca/physics/siliconquantum/).

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Reposted by Daniel Higginbottom
The Hilbert Space Post @hilbertspacepost.bsky.social · 14/09/2026
Researchers demonstrated the first quantum error-correction protocol operating across two separate quantum processors, showing that networked quantum computers can detect and correct errors using shared entanglement and real-time feedback. arxiv.org/abs/2609.13065
arxiv.org
Error Correction in a Distributed Quantum Computer
Building fault-tolerant quantum computers with large numbers of logical qubits requires both scalable hardware architectures and error-correcting codes that make efficient use of physical qubits. Phot...
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Daniel Higginbottom @quantumdan.bsky.social · 10/09/2026
We're hiring two full-time technical research scientists to support establishing Vancouver's metropolitan quantum network. If you have experience in quantum key or entanglement distribution then we want you to come work with us in beautiful Vancouver! tre.tbe.taleo.net/tre01/ats/ca...
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Daniel Higginbottom @quantumdan.bsky.social · 27/08/2026
PhD student Nicholas Brunelle has just returned to us from ICPS 2026 in Tokyo, where he presented work from an upcoming manuscript reporting optical coherent population trapping in a silicon colour centre. Keep an eye out for the paper! pub.confit.atlas.jp/en/event/icp...
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Reposted by Daniel Higginbottom
SFU Faculty of Science @sfuscience.bsky.social · 20/08/2026
Congratulations to @sfubiosciences.bsky.social prof Tanya Brown, @sfuphysics.bsky.social profs @quantumdan.bsky.social and Thomas Jennewein, chemistry prof Daniel Leznoff and earth sciences prof Xinyue Xu on receiving support through the John R. Evans Leaders Fund!
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Daniel Higginbottom @quantumdan.bsky.social · 17/07/2026
Welcome to the SQT team Kyle MacRobbie! Kyle comes to us from the University of Waterloo and for his MSc research he'll be working on T centre devices including strain tuning and diodes.
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Daniel Higginbottom @quantumdan.bsky.social · 07/07/2026
Farewell to our delightful postdoc Simon Meynell, who is off to work with Patrice Bertet's group at CEA Paris-Saclay! It has been a pleasure working with him on T centre spectral diffusion and optical cluster states. Read Simon's paper on T centre spectral diffusion here: doi.org/10.1103/9dxr...
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Daniel Higginbottom @quantumdan.bsky.social · 04/07/2026
So proud of our PhD graduate Camille Bowness! She triumphantly defended her thesis "The Optical Dynamics of Cavity-Integrated T centres" and you can read it here: summit.sfu.ca/item/40468. Camille started her MSc with SQT even before I joined the lab! What will we do without her?
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Daniel Higginbottom @quantumdan.bsky.social · 02/07/2026
In this new preprint we tune the emission frequency of single T centres integrated with optical cavities and a lateral diode. We're able to vary the emitter lifetime by spectral tuning, and to delay emission by controlled ionization. More tools in the kit for T devices! arxiv.org/pdf/2604.25170
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Reposted by Daniel Higginbottom
Photonic Inc. @photonicinc.bsky.social · 28/04/2026
Photonic will be at CLEO 2026. Gary Wolfowicz, Senior Quantum Architect, will be in Charlotte to present Distributed Quantum Computing in Silicon. 🗓️ May 21 🕚 11:30 AM 📍Room W207 A Learn more and view the full program: f.mtr.cool/rervxeogwm #TeamPhotonic
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Daniel Higginbottom @quantumdan.bsky.social · 01/03/2026
Phys.org covered some recent work of ours on the vibrational modes of silicon T centre isotopic variants: phys.org/news/2026-02...
phys.org
Phys.org - News and Articles on Science and Technology
Daily science news on research developments, technological breakthroughs and the latest scientific innovations
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Daniel Higginbottom @quantumdan.bsky.social · 23/02/2026
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.
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Daniel Higginbottom @quantumdan.bsky.social · 21/02/2026
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...
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Daniel Higginbottom @quantumdan.bsky.social · 19/02/2026
Delighted to present the recent work of our Silicon Quantum Technology lab at SFU at the Quantum Days conference in Victoria, BC today.
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Daniel Higginbottom @quantumdan.bsky.social · 05/02/2026
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...
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Daniel Higginbottom @quantumdan.bsky.social · 13/01/2026
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.
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Daniel Higginbottom @quantumdan.bsky.social · 19/12/2025
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.
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Daniel Higginbottom @quantumdan.bsky.social · 29/10/2025
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
arxiv.org
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...
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Daniel Higginbottom @quantumdan.bsky.social · 06/10/2025
Delighted to see this News and Views article on our recent manuscript. Great perspective from Benjamin Pingault. www.nature.com/articles/s41...
nature.com
Spin–photon interfaces in silicon - Nature Photonics
Electrically induced single-photon emission and spin initialization of a silicon T centre in photonic structures is a promising step towards integrated spin–photon interfaces for quantum networks.
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Daniel Higginbottom @quantumdan.bsky.social · 19/09/2025
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
photonic.com
The T Centre Tango: Understanding how laser light couples to both the T centre and its environment - Photonic
The T centre and silicon are the ultimate quantum power-couple: combining telecom-band optical emission with established fabrication infrastructure. However, to truly unlock this pair’s potential, we ...
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Daniel Higginbottom @quantumdan.bsky.social · 16/09/2025
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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Reposted by Daniel Higginbottom
Dr. Aimee K. Gunther @aimeekgunther.bsky.social · 14/09/2025
"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...
theglobeandmail.com
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?
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Daniel Higginbottom @quantumdan.bsky.social · 11/09/2025
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
rdcu.be
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...
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Daniel Higginbottom @quantumdan.bsky.social · 01/05/2025
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 Higginbottom
Physgal ⚛️ @physgal.bsky.social · 29/04/2025
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 🧪 ⚛️ 🎢 🇨🇦
sfu.ca
Quantum Canada Open Doors 2025 - everybody is invited!
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Reposted by Daniel Higginbottom
SFU Faculty of Science @sfuscience.bsky.social · 16/04/2025
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/...
sfu.ca
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...
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Daniel Higginbottom @quantumdan.bsky.social · 24/04/2025
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.
arxiv.org
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 ...
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Daniel Higginbottom @quantumdan.bsky.social · 16/03/2025
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.
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Daniel Higginbottom @quantumdan.bsky.social · 23/01/2025
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.
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