Matthew F. Pusey

Post-doctoral fellow, Perimeter Institute for Theoretical Physics.

mpusey@perimeterinstitute.ca Matt & a sign for the 'Pusey Room'

Papers

arXiv:1607.07871M. S. Leifer, M. F. Pusey
Is a time symmetric interpretation of quantum theory possible without retrocausality?
arXiv:1607.03637D. Horsman, C. Heunen, M. F. Pusey, J. Barrett, R. W. Spekkens
Can a quantum state over time resemble a quantum state at a single time?
arXiv:1512.00262F. Hirsch, M. T. Quintino, T. Vértesi, M. F. Pusey, N. Brunner
Algorithmic construction of local hidden variable models for entangled quantum states
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
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
The robust noncontextuality inequalities in the simplest scenario
arXiv:1505.06244M. D. Mazurek, M. F. Pusey, R. Kunjwal, K. J. Resch and R. W. Spekkens
An experimental test of noncontextuality without unwarranted idealizations
Nat. Commun. 7, 11780 (2016)
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)
arXiv:1405.2572
(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)
arXiv:1305.1767
(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
Nature Phys. 8, 475 (2012)
arXiv:1103.5037M. F. Pusey
Stabilizer notation for Spekkens' toy theory
Found. Phys. 42, 688 (2012)

Theses

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)

Talks

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
Thoughts on a qubit from the perspective of generalised probabilistic theories
IQSA 2016, Leicester, July 2016
Direct experimental reconstruction of the Bloch sphere
QCMC 2016, Centre for Quantum Technologies, July 2016
Contextuality as a resource theory
Contextuality as a resource in quantum computation, UCL, June 2016
Three QBist worlds
Information-Theoretic Interpretations of Quantum Mechanics (a.k.a. Bubfest), Rotman Institute, June 2016
From the Kochen-Specker theorem to robust noncontextuality inequalities
Math, Physics & Computation seminar, Chapman University, April 2016
The triangle
Joint McGill-Oxford Workshop on Causality in Quantum Foundations, Bellairs Research Institute, March 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
The robust noncontextuality inequalities in the simplest scenario
International Conference on Quantum Foundations 2015, Patna, December 2015
Specker vs. Spekkens
Workshop on Quantum Correlations, Contextuality and All That... Again, International Institute of Physics, Natal, November 2015
What do unconventional measurements tell us about quantum theory?
Center for Coherence and Quantum Optics seminar, University of Rochester, October 2015
An experimental test of noncontextuality without unwarranted idealizations
Quantum Information seminar, University College London, September 2015
An invitation to generalised contextuality
Contextuality: why and how, Linköping University, August 2015
The robust noncontextuality inequalities in the simplest scenario
Conference on Quantum Information & Quantum Control VI, Fields Institute, Toronto, August 2015
Logical pre- and post-selection paradoxes are proofs of contextuality
Quantum Physics & Logic, University of Oxford, July 2015
Experimental contextuality: new and improved
Quantum Computation & Information seminar, University of Bristol, April 2015
The experimentally robust noncontextuality inequalities in the simplest scenario
Theory seminar, GAP-Optique, University of Geneva, April 2015
A resource theory of contextuality
Quantum Malawi, April 2015
Contextuality: a benchmark for "quantumness" in theory and experiment
APS March Meeting, San Antonio, March 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
Theory-independent limits on correlations from generalised Bayesian networks
GISIN'14 - The Greatest Inspiration Surely Is Nonlocality, Riederalp, September 2014
Time-Symmetric Ontologies for Quantum Theory
Free Will and Retrocausality in the Quantum World, University of Cambridge, July 2014
Theory-independent limits on correlations from generalised Bayesian networks
Quantum Theory: from Problems to Advances, Linnæus University, June 2014
Beyond local causality: causation and correlation after Bell
Quantum Foundations seminar, Perimeter Institute, April 2014
How to demonstrate contextuality in a realistic experiment
Institute for Quantum Computing seminar, University of Waterloo, February 2014
Negativity and steering: a stronger Peres conjecture
London Foundations Connection, Imperial College London, May 2013
On the character of the wavefunction
Quantum Theory Without Observers III, Bielefeld University, April 2013
Quantum lost property: A possible operational meaning for the Hilbert-Schmidt product
APS March Meeting, Baltimore Convention Center, March 2013
Are quantum states real?
with Peter Lewis
International Laser Center, Moscow State University, January 2013
Quantum lost property
CQT Talk, National University of Singapore, December 2012
What's an unknown POVM?
Quantum Foundations seminar, Perimeter Institute, November 2012
On the reality of the quantum state
New Directions in the Foundations of Physics, Mathematical Association of America Carriage House, May 2012
Comparing two explanations for qubits
LARSIM / QuPa workshop "Foundational questions of quantum information", Télécom ParisTech, April 2012
The quantum state cannot be interpreted statistically
Quantum Computation & Information seminar, Bristol, February 2012
Quantum Information seminar, University College London, January 2012
High Energy Physics seminar, Imperial College London, January 2012
CDT board meeting student talk, Imperial College London, January 2012
Q+ Hangout, Google+, November 2011
Philosophy of Physics research seminar, Oxford, November 2011
Bell inequalities sans computation
ColLoQuI, Imperial College London, March 2011

Posters

Theory-independent limits on correlations from generalised Bayesian networks
Quantum [Un]Speakables II: 50 Years of Bell's Theorem, University of Vienna, June 2014
Visualizing two qubit states: the steering ellipsoid
Quantum Information Processing 2013, Tsinghua University, January 2013
Quantum lost property: an operational meaning for the Hilbert-Schmidt product?
Summer School on Quantum Information, Computing and Control, Aberystwyth, August 2012
Stabilizer notation for Spekkens' toy theory
Conceptual Foundations and Foils for Quantum Information Processing, Perimeter Institute, May 2011
Every Stabilizer Circuit Admits a Local Hidden Variable Model (for computational basis inputs and outputs)
DTC Summer School, Imperial College London, September 2010