Roadmap on Quantum Sensors for Vacuum Metrology
D. S. Barker, J. L. Booth, S. P. Eckel, J. Grosse, K. Jousten, J. Klos, R. V. Krems, K. W. Madison, T. Rubin, and E. Tiesinga Roadmap on Quantum Sensors for Vacuum Metrology New Journal of Physics (submitted); arXiv:2609.06626
Initial results of the TRIUMF ultracold advanced neutron source
B. Algohi et al., Initial results of the TRIUMF ultracold advanced neutron source Phys. Rev. C 114, L012501 (2026); arXiv:2509.02916
A New High-Intensity Source for Ultracold Neutrons
K. Abe et al., A New High-Intensity Source for Ultracold Neutrons arXiv:2607.03033
Invariance of quantum scattering rate coefficients to anisotropy of atom-molecule interactions
Xuyang Guo, Kirk W. Madison, James L. Booth, and Roman V. Krems Invariance of quantum scattering rate coefficients to anisotropy of atom-molecule interactions Phys. Rev. A 113, 012801; arXiv:2507.03801
Ultracold neutron guide-coating facility at U. Winnipeg
T. Hepworth et al., Ultracold neutron guide-coating facility at U. Winnipeg Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1092, 171841 (2026); arXiv:2510.06289
How to Measure Nothing Better, Atomic sensors could support big science, semiconductors, and more
Dina Genkina How to Measure Nothing Better, Atomic sensors could support big science, semiconductors, and more IEEE Spectrum, September 24, 2025
Neutron EDM Experiment with an Advanced Ultracold Neutron Source at TRIUMF
T. Higuchi et al., Neutron EDM Experiment with an Advanced Ultracold Neutron Source at TRIUMF CPT and Lorentz Symmetry, pp. 177-185 (2026); arXiv:2507.05278
Cryogenic systems for the TUCAN EDM experiment
J. W. Martin et al., Cryogenic systems for the TUCAN EDM experiment arXiv:2506.09064
Design advances on the dual species cold atom based pressure standard
J Halbey , M. Bernien b, T. Rubin, K. W. Madison, and J. Grosse Design advances on the dual species cold atom based pressure standard Measurement: Sensors 38, 101695 (2024)
Significant Chiral Asymmetry Observed in Neutral Amino Acid Ultraviolet Photolysis
Brendan Moore, Linshan Zeng, Pavle Djuricanin, Ilsa R. Cooke, Kirk W. Madison, Takamasa Momose Significant Chiral Asymmetry Observed in Neutral Amino Acid Ultraviolet Photolysis Journal American Chemical Society (2024) 146 (50): 34333–34340
Competing excitation quenching and charge exchange in ultracold Li-Ba+ collisions
Xiaodong Xing, Pascal Weckesser, Fabian Thielemann, Tibor Jónás, Romain Vexiau, Nadia Bouloufa-Maafa, Eliane Luc-Koenig, Kirk W Madison, Andrea Orbán, Ting Xie Competing excitation quenching and charge exchange in ultracold Li-Ba+ collisions Journal of Physics B: Atomic, Molecular, and Optical Physics, 57 245201 (2024)
A magnetically silent optically pumped magnetometer for a neutron electric dipole moment experiment
W. Klassen, S. Ahmed, K. Pond Grehan, C. Hovde, K.W. Madison, R.R. Mammei, J.W. Martin, M. McCrea, T. Mohammadi, T. Momose, P. Opsahl, D. Ostapchuk A magnetically silent optically pumped magnetometer for a neutron electric dipole moment experiment The European Physical Journal C, xxxxx (2024), arXiv:2405.08696
Boundaries of universality of thermal collisions for atom-atom scattering
Xuyang Guo, Kirk W. Madison, James L. Booth, and Roman V. Krems Boundaries of universality of thermal collisions for atom-atom scattering Phys. Rev. A 110, 063317 (2024), arXiv:2409.00273 This “Boundaries of universality” paper was chosen by PRA for their Highlights page.
Revising the Universality Hypothesis for Room-temperature Collisions
James L. Booth, and Kirk W. Madison Revising the Universality Hypothesis for Room-temperature Collisions Phys. Rev. A 110, 052802 (2024), arXiv:2406.17065
Effect of Laser Intensity for Satuated Absorption Spectroscopy of 87Rb
Elektra Dakogiannis Effect of Laser Intensity for Satuated Absorption Spectroscopy of 87Rb Internal Report – October 2024
Explorations of universality in ultra-cold and room-temperature collisions
Erik Frieling Explorations of universality in ultra-cold and room-temperature collisions Doctor of Philosophy, Dissertation – April 2024 || UBC-Circle Link to dissertation
Cross-calibration of atomic sensors for pressure metrology
Erik Frieling, Riley A. Stewart, James L. Booth, and Kirk W. Madison Cross-calibration of atomic sensors for pressure metrology AVS Quantum Sci. 6, 024404 (2024), arxiv:2312.15446
Trapped-particle evolution driven by residual gas collisions
Avinash Deshmukh, Riley A. Stewart, Pinrui Shen, James L. Booth, and Kirk W. Madison Trapped-particle evolution driven by residual gas collisions Phys. Rev. A 109, 032818 (2024), arxiv:2310.04583
Optimizing photoassociation signals in small magneto-optical traps and evaporative cooling schemes for shallow optical dipole traps
Sudhang Varshney Optimizing photoassociation signals in small magneto-optical traps and evaporative cooling schemes for shallow optical dipole traps Master of Science, Thesis – October 2023 || UBC-Circle Link to thesis
Opportunities for Fundamental Physics Research with Radioactive Molecules
G. Arrowsmith-Kron et al., Opportunities for Fundamental Physics Research with Radioactive Molecules Rep. Prog. Phys. 87 084301 (2024), https://arxiv.org/abs/2302.02165
Cross-calibration of atomic pressure sensors and deviation from quantum diffractive collision universality for light particles
Pinrui Shen, Erik Frieling, Katherine R. Herperger, Denis Uhland, Riley A. Stewart, Avinash Deshmukh, Roman V. Krems, James L. Booth, Kirk W. Madison Cross-calibration of atomic pressure sensors and deviation from quantum diffractive collision universality for light particles New Journal of Physics 25 053018 (2023) || arXiv:2209.02900
Progress towards a portable cold-atom pressure standard
Perrin Waldock Progress towards a portable cold-atom pressure standard Master of Applied Science, Thesis – October 2022 || UBC-Circle Link to thesis
It’s pretty hard to measure nothing, but these engineers are getting close
Rahul Rao It’s pretty hard to measure nothing, but these engineers are getting close Popular Science, Aug 8, 2022
The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF
R. Matsumiya et al., The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF https://arxiv.org/abs/2207.09880
Measurement of Rb-Rb van der Waals coefficient via Quantum Diffractive Universality
Riley A. Stewart, Pinrui Shen, James L. Booth, Kirk W. Madison Measurement of Rb-Rb van der Waals coefficient via Quantum Diffractive Universality Phys. Rev. A 106, 052812 (2022) and arXiv:2208.12805
Development of a Cold Atom Pressure Standard
Pinrui Shen Development of a Cold Atom Pressure Standard Doctor of Philosophy, Dissertation – April 2022 || UBC-Circle Link to dissertation
Feshbach Resonances in Ultra-Cold Gas of 6Li Atoms
Sukhman Singh Feshbach Resonances in Ultra-Cold Gas of 6Li Atoms Honours Thesis, Thesis – April 2022
Refining the cold atom pressure standard
Pinrui Shen, Kirk W. Madison, and James L. Booth Refining the cold atom pressure standard Metrologia [http://iopscience.iop.org/article/10.1088/1681-7575/abe02f]
Simulation of Li-Rb degenerate mixtures in an Optical Dipole Trap
Siddharth Gautam Simulation of Li-Rb degenerate mixtures in an Optical Dipole Trap MITACS Globalink Research Internship 2021 Report
Quantum-state-dependent chemistry of ultracold Li2 dimers
Gene Polovy, Erik Frieling, Denis Uhland, Julian Schmidt, and Kirk W. Madison Quantum-state-dependent chemistry of ultracold Li2 dimers Phys. Rev. A 102, 013310 (2020)
Breakthrough development: a game-changing self-calibrating quantum sensor for vacuum measurement
Breakthrough development: a game-changing self-calibrating quantum sensor for vacuum measurement BCIT News
Self calibrating quantum sensor a game changer for vacuum measurement
Self calibrating quantum sensor a game changer for vacuum measurement UBC PHAS News
Realization of a universal quantum pressure standard
Pinrui Shen, Kirk W. Madison, and James L. Booth Realization of a universal quantum pressure standard Metrologia [https://doi.org/10.1088/1681-7575/ab7170]
Fast-switching magnet serving a spallation-driven ultracold neutron source
S. Ahmed et al. Fast-switching magnet serving a spallation-driven ultracold neutron source Phys. Rev. Accel. Beams 22, 102401 || https://arxiv.org/abs/1905.08857
Universality of quantum diffractive collisions and the quantum pressure standard
James L. Booth, Pinrui Shen, Roman V. Krems, Kirk W. Madison Universality of quantum diffractive collisions and the quantum pressure standard New Journal of Physics, https://doi.org/10.1088/1367-2630/ab452a || https://arxiv.org/abs/1905.02193 video abstract
A beamline for fundamental neutron physics at TRIUMF
S. Ahmed et al. A beamline for fundamental neutron physics at TRIUMF Nucl. Instr. Meth. Phys. Res. Sec. A: Accel., Spectr., Detect. Assoc. Equip. (2019). || https://arxiv.org/abs/1810.01001
Investigating the Loading Dynamics of a Magneto-Optical Trap
Jonah Berean-Dutcher Investigating the Loading Dynamics of a Magneto-Optical Trap Internal Report – October 2019
First ultracold neutrons produced at TRIUMF
S. Ahmed et al. First ultracold neutrons produced at TRIUMF Phys. Rev. C 99, 025503 (2019) || https://arxiv.org/abs/1809.04071
Phase noise reduction of mutually tunable lasers with an external acousto-optic modulator
Gene Polovy, Julian Schmidt, Denis Uhland, Erik Frieling, Kahan Dare, and Kirk W. Madison Phase noise reduction of mutually tunable lasers with an external acousto-optic modulator JOSA B, Vol. 36, Issue 2, pp. 464-469 (2019)
Determination of the Atom’s Excited-state Fraction in a Magneto-optical Trap
Yue Shen Determination of the Atom’s Excited-state Fraction in a Magneto-optical Trap Master of Science, Thesis – October 2018 || UBC-Circle Link to thesis
Gaussian Process Modeling of Rubidium-87 Magneto-Optic Traps
Adrian Lake Gaussian Process Modeling of Rubidium-87 Magneto-Optic Traps Honours Thesis, Thesis – April 2018
The performance and limitations of FPGA-based digital servos for atomic, molecular, and optical physics experiments
Shi Jing Yu, Emma Fajeau, Lin Qiao Liu, David J. Jones, and Kirk W. Madison The performance and limitations of FPGA-based digital servos for atomic, molecular, and optical physics experiments Rev. Sci. Instrum. Volume 89 (2018) || https://arxiv.org/abs/1708.05892 || RSI2 || (doi)
High-resolution two-photon spectroscopy of a 5p^5 6p <- 5p^6 transition of xenon
Emily Altiere, Eric R. Miller, Tomohiro Hayamizu, David J. Jones, Kirk W. Madison, and Takamasa Momose High-resolution two-photon spectroscopy of a 5p^5 6p <- 5p^6 transition of xenon Phys. Rev. A 97, 012507 (2018)
Atom trapping for pressure sensing applications
Erik Frieling Atom trapping for pressure sensing applications Honours Thesis, Thesis – April 2017
The Study of Field Programmable Gate Array Based Servos in Atomic, Molecular and Optical Physics Experiments
Shi Jing Yu The Study of Field Programmable Gate Array Based Servos in Atomic, Molecular and Optical Physics Experiments Master of Science, Thesis – April 2017 || UBC-Circle Link to thesis
Coils, Fields and Xenon Towards Measuring Xenon Spin Precession in a Magnetic Field for the UCN Collaboration
Joshua Nikolai Wienands Coils, Fields and Xenon Towards Measuring Xenon Spin Precession in a Magnetic Field for the UCN Collaboration Master of Science, Thesis – August 2016 || UBC-Circle Link to dissertation
Photoassociation and Feshbach Resonance Studies in Ultra-Cold Gases of 6Li and Rb Atoms
Will Gunton Photoassociation and Feshbach Resonance Studies in Ultra-Cold Gases of 6Li and Rb Atoms Doctor of Philosophy, Dissertation – April 2016 || UBC-Circle Link to dissertation
Dual Species Effusive Source and Zeeman Slower for Cold Atom Experiments
William Bowden, Will Gunton, Mariusz Semczuk, Kahan Dare, and Kirk W. Madison Dual Species Effusive Source and Zeeman Slower for Cold Atom Experiments Rev. Sci. Instrum. 87, 043111 (2016) || http://arxiv.org/abs/1509.07460
Tools for Trapping and Detecting Ultracold Gases
Kahan McAffer Dare Tools for Trapping and Detecting Ultracold Gases Master of Science, Thesis – April 2016
Transparent Electrodes for High E-Field Production Using A Buried ITO Layer
Will Gunton, Gene Polovy, Mariusz Semczuk, Kirk W. Madison Transparent Electrodes for High E-Field Production Using A Buried ITO Layer Rev. Sci. Instrum. 87, 033113 (2016) || http://arxiv.org/abs/1508.04086