Matthew F. Pusey

Lecturer in Quantum Information, Department of Mathematics, YorkMatt & a sign for the 'Pusey Room'
Editor, Quantum

Want a PhD? Applications for funded places in my department for UK students are currently open.


arXiv:2308.02380S. Khanna, M. M. Ansanelli, M. F. Pusey, E. Wolfe
Classifying Causal Structures: Ascertaining when Classical Correlations are Constrained by Inequalities
arXiv:2101.06263D. Schmid, H. Du, J. H. Selby, and M. F. Pusey
Uniqueness of Noncontextual Models for Stabilizer Subtheories
Phys. Rev. Lett. 129, 120403 (2022)
arXiv:2005.07161D. Schmid, J. H. Selby, M. F. Pusey, and R. W. Spekkens
A structure theorem for generalized-noncontextual ontological models
(download code)
M. F. Pusey, L. del Rio, and B. Meyer
Contextuality without access to a tomographically complete set
(download code)
R. Kunjwal, M. Lostaglio, and M. F. Pusey
Anomalous weak values and contextuality: robustness, tightness, and imaginary parts
Phys. Rev. A 100, 042116 (2019)
arXiv:1710.05948M. D. Mazurek, M. F. Pusey, K. J. Resch, and R. W. Spekkens
Experimentally bounding deviations from quantum theory in the landscape of generalized probabilistic theories
PRX Quantum 2, 020302 (2021)
Coverage: Inside the Perimeter
arXiv:1607.07871M. S. Leifer and M. F. Pusey
Is a time symmetric interpretation of quantum theory possible without retrocausality?
Proc. R. Soc. A 473, 20160607 (2017)
Coverage: New Scientist, New Scientist (again), de Volkskrant,
arXiv:1607.03637D. Horsman, C. Heunen, M. F. Pusey, J. Barrett, and R. W. Spekkens
Can a quantum state over time resemble a quantum state at a single time?
Proc. R. Soc. A 473, 20170395 (2017)
arXiv:1512.00262F. Hirsch, M. T. Quintino, T. Vértesi, M. F. Pusey, and N. Brunner
Algorithmic construction of local hidden variable models for entangled quantum states
Phys. Rev. Lett. 117, 190402 (2016)
arXiv:1509.08893J. Combes, C. Ferrie, M. S. Leifer, and M. F. Pusey
Why protective measurement does not establish the reality of the quantum state
Quantum Stud.: Math. Found. 5, 189 (2018)
arXiv:1506.07850M. F. Pusey and M. S. Leifer
Logical pre- and post-selection paradoxes are proofs of contextuality
Electron. Proc. Theor. Comput. Sci. 195, 295 (2015)
arXiv:1506.04178M. F. Pusey
Robust preparation noncontextuality inequalities in the simplest scenario
Phys. Rev. A 98, 022112 (2018)
arXiv:1505.06244M. D. Mazurek, M. F. Pusey, R. Kunjwal, K. J. Resch, and R. W. Spekkens
An experimental test of noncontextuality without unphysical idealizations
Nat. Commun. 7, 11780 (2016)
Coverage: Perimeter Institute
arXiv:1502.03010M. F. Pusey
Verifying the quantumness of a channel with an untrusted device
J. Opt. Soc. Am. B 32, A56 (2015)
arXiv:1409.1535M. F. Pusey
Anomalous weak values are proofs of contextuality
Phys. Rev. Lett. 113, 200401 (2014)
Coverage: Physics World blog, The Conversation
(download code)
J. Henson, R. Lal, and M. F. Pusey
Theory-independent limits on correlations from generalised Bayesian networks
New J. Phys. 16, 113043 (2014)
Coverage: The n-Category Café
(download code)
M. F. Pusey
Negativity and steering: A stronger Peres conjecture
Phys. Rev. A 88, 032313 (2013)
arXiv:1303.4724S. Jevtic, M. F. Pusey, D. Jennings, and T. Rudolph
Quantum steering ellipsoids
Phys. Rev. Lett. 113, 020402 (2014)
arXiv:1211.0942D. Nigg, T. Monz, P. Schindler, E. A. Martinez, M. Chwalla, M. Hennrich, R. Blatt, M. F. Pusey, T. Rudolph, and J. Barrett
Can different quantum state vectors correspond to the same physical state? An experimental test
New J. Phys. 18, 013007 (2016)
arXiv:1208.2550M. F. Pusey and T. Rudolph
Quantum lost property: A possible operational meaning for the Hilbert-Schmidt product
Phys. Rev. A 86, 044301 (2012)
arXiv:1111.3328M. F. Pusey, J. Barrett, and T. Rudolph
On the reality of the quantum state
Nat. Phys. 8, 475 (2012)
Print coverage: New Scientist, Physics World, Nature, Nature Physics, Die Zeit, The Quantum Times
Audio coverage: Big Science FM
Blog coverage: Matt Leifer, Shtetl-Optimized, The Reference Frame
arXiv:1103.5037M. F. Pusey
Stabilizer notation for Spekkens' toy theory
Found. Phys. 42, 688 (2012)

Other writing

Quantum Correlations Take a New Shape
Viewpoint, Physics 12, 106 (2019)
An inconsistent friend
News & Views, Nat. Phys. 14, 977 (2018)
Is quantum steering spooky?
PhD thesis, Imperial College London (2013)
A few connections between quantum computation and quantum non-locality
MRes thesis, Imperial College London (2010)

Recorded talks

The structure of noncontextuality, in particular for the stabilizer subtheory
Quantum Information seminar, Cavendish, Cambridge, February 2022
The structure of noncontextuality, in particular for the stabilizer subtheory
Vienna Quantum Foundations Conference, September 2021
A structure theorem for all noncontextual ontological models of an operational theory
Quantum Physics & Logic, June 2021
A structure theorem for transformations in noncontextual models
Quantum Contextuality in Quantum Mechanics and Beyond, May 2021
Direct experimental reconstruction of the Bloch sphere
with Mike Mazurek
Experimental Quantum Foundations, Perimeter Institute, September 2016
What experimental contextuality might teach us about experimental higher-order interference
Formulating and Finding Higher-order Interference, Perimeter Institute, August 2016
Three QBist worlds
Information-Theoretic Interpretations of Quantum Mechanics, Rotman Institute, June 2016
Noncontextuality violation as a robust quantum resource
QIP 2016, Banff Centre, January 2016
A guided tour from locality to noncontextuality (and back again)
Workshop on Quantum Nonlocality, Causal Structures, and Device-independent Quantum Information, National Cheng Kung University, Tainan, December 2015
Logical pre- and post-selection paradoxes are proofs of contextuality
Quantum Physics & Logic, University of Oxford, July 2015
Why protective measurement does not establish the reality of the wave function
First iWorkshop on the Meaning of the Wave Function, IJQF, October 2014
Contextuality as a litmus test for quantum weirdness
PI Day 2014, Perimeter Institute, October 2014
Time-symmetric ontologies for quantum theory
Free Will and Retrocausality in the Quantum World, University of Cambridge, July 2014
Beyond local causality: causation and correlation after Bell
Quantum Foundations seminar, Perimeter Institute, April 2014
What's an unknown POVM?
Quantum Foundations seminar, Perimeter Institute, November 2012

There is also a full list of my talks and posters, including those for which no recording is available.