Show abstracts

Preprints
  1. David Schmid, Robert W. Spekkens, Elie Wolfe
    All the noncontextuality inequalities for arbitrary prepare-and-measure experiments with respect to any fixed sets of operational equivalences
    [arXiv:1710.08434 (quant-ph)]

  2. Michael D. Mazurek, Matthew F. Pusey, Kevin J. Resch, Robert W. Spekkens
    Experimentally bounding deviations from quantum theory in the landscape of generalized probabilistic theories
    [arXiv:1710.05948 (quant-ph)]

  3. Ravi Kunjwal and Robert W. Spekkens
    From statistical proofs of the Kochen-Specker theorem to noise-robust noncontextuality inequalities
    [arXiv:1708.04793 (quant-ph)]

  4. David Schmid and Robert W. Spekkens
    Contextual advantage for state discrimination
    [arXiv:1706.04588 (quant-ph)]

  5. Anirudh Krishna, Robert W. Spekkens, and Elie Wolfe
    Deriving robust noncontextuality inequalities from algebraic proofs of the Kochen-Specker theorem: the Peres-Mermin square
    [arXiv:1704.01153 (quant-ph)]

  6. Elie Wolfe, Robert W. Spekkens, and Tobias Fritz
    The Inflation Technique for Causal Inference with Latent Variables
    [arXiv:1609.00672 (quant-ph)]

  7. Iman Marvian and Robert W. Spekkens
    An information-theoretic account of the Wigner-Araki-Yanase theorem
    [arXiv:1212.3378 (quant-ph)]
Articles
  1. Katja Ried, Jean-Philippe W. MacLean, Robert W. Spekkens, Kevin J. Resch
    Quantum to classical transitions in causal relations
    Phys. Rev. A 95, 062102 (2017)
    [arXiv:1707.06131 (quant-ph)]

  2. Dax Enshan Koh, Mark D. Penney, and Robert W. Spekkens
    Computing quopit Clifford circuit amplitudes by the sum-over-paths technique
    Quantum Inf. Comput. 17 (13-14) 1081-1095 (2017)
    [arXiv:1702.03316 (quant-ph)]

  3. John-Mark A. Allen, Jonathan Barrett, Dominic C. Horsman, Ciaran M. Lee, and Robert W. Spekkens
    Quantum common causes and quantum causal models
    Phys. Rev. X 7, 031021 (2017)
    [arXiv:1609.09487 (quant-ph)]

  4. Dominic Horsman, Chris Heunen, Matthew F. Pusey, Jonathan Barrett, Robert W. Spekkens
    Can a quantum state over time resemble a quantum state at a single time?
    Proc. R. Soc. A 473(2205), p. 20170395 (2017)
    [arXiv:1607.03637 (quant-ph)]

  5. Jean-Philippe W. MacLean, Katja Ried, Robert W. Spekkens, Kevin J. Resch
    Quantum-coherent mixtures of causal relations
    Nat. Commun. 8, 15149 (2017)
    [arXiv:1606.04523 (quant-ph)]

  6. Mark D. Penney, Dax Enshan Koh, and Robert W. Spekkens
    Quantum circuit dynamics via path integrals: Is there a classical action for discrete-time paths?
    New J. Phys. 19, 073006 (2017)
    [arXiv:1604.07452 (quant-ph)]

  7. Iman Marvian and Robert W. Spekkens
    How to quantify coherence: distinguishing speakable and unspeakable notions
    Phys. Rev. A 94, 052324 (2016)
    [arXiv:1602.08049 (quant-ph)]

  8. Iman Marvian, Robert W. Spekkens, and Paolo Zanardi
    Quantum speed limits, coherence and asymmetry
    Phys. Rev. A 93, 052331 (2016)
    [arXiv:1510.06474 (quant-ph)]

  9. Ravi Kunjwal and Robert W. Spekkens
    From the Kochen-Specker theorem to noncontextuality inequalities without assuming determinism
    Phys. Rev. Lett. 115, 110403 (2015)
    [arXiv:1506.04150 (quant-ph)]

  10. Ciaran M. Lee and Robert W. Spekkens
    Causal inference via algebraic geometry: feasibility tests for functional causal structures with two binary observed variables
    J. Causal Inference 5(2) (2017)
    [arXiv:1506.03880 (stat.ML)]

  11. Michael D. Mazurek, Matthew F. Pusey, Ravi Kunjwal, Kevin J. Resch, Robert W. Spekkens
    An experimental test of noncontextuality without unphysical idealizations
    Nat. Commun. 7, 11780 (2016)
    [arXiv:1505.06244 (quant-ph)]

  12. Bob Coecke, Tobias Fritz and Robert W. Spekkens
    A mathematical theory of resources
    Information and Computation 250, 59 (2016).
    [arXiv:1409.5531 (quant-ph)]

  13. Robert W. Spekkens
    Quasi-quantization: classical statistical theories with an epistemic restriction
    Published in book "Quantum Theory: Informational foundations and foils", eds. G. Chiribella and R. W. Spekkens, Springer (2016)
    [arXiv:1409.5041 (quant-ph)]

  14. Katja Ried, Megan Agnew, Lydia Vermeyden, Dominik Janzing, Robert W. Spekkens, Kevin J. Resch
    A quantum advantage for inferring causal structure
    Nature Physics 11, 414 (2015)
    [arXiv:1406.5036 (quant-ph)]

  15. Iman Marvian and Robert W. Spekkens
    Extending Noether's theorem by quantifying the asymmetry of quantum states
    Nature Communications 5, 3821 (2014)
    [arXiv:1404.3236 (quant-ph)]

  16. Robert W. Spekkens
    The status of determinism in proofs of the impossibility of a noncontextual model of quantum theory
    Found. Phys. 44, 1125 (2014)
    [arXiv: 1312.3667 (quant-ph)]

  17. Iman Marvian and Robert W. Spekkens
    Modes of asymmetry: the application of harmonic analysis to symmetric quantum dynamics and quantum reference frames
    Phys. Rev. A 90, 062110 (2014)
    [arXiv:1312.0680 (quant-ph)]

  18. M. S. Leifer and Robert W. Spekkens
    Towards a formulation of quantum theory as a causally neutral theory of Bayesian inference
    Phys. Rev. A 88, 052130 (2013)
    [arXiv:1107.5849 (quant-ph)]

  19. Gilad Gour, Markus P. Muller, Varun Narasimhachar, Robert W. Spekkens, Nicole Yunger Halpern
    The resource theory of informational nonequilibrium in thermodynamics
    Phys. Rep. 583, 1 (2015)
    [arXiv:1309.6586 (quant-ph)]

  20. Iman Marvian and Robert W. Spekkens
    The theory of manipulations of pure state asymmetry I: basic tools and equivalence classes of states under symmetric operations
    New J. Phys. 15, 033001 (2013)
    [arXiv:1104.0018 (quant-ph)]

  21. Robert W. Spekkens
    The paradigm of kinematics and dynamics must yield to causal structure
    In "Questioning the Foundations of Physics: Which of Our Fundamental Assumptions Are Wrong?" edited by A. Aguirre, B. Foster, and Z. Merali
    [arXiv:1209.0023 (quant-ph)]

  22. Christopher J. Wood and Robert W. Spekkens
    The lesson of causal discovery algorithms for quantum correlations: Causal explanations of Bell-inequality violations require fine-tuning
    New J. Phys. 17, 033002 (2015)
    [arXiv:1208.4119 (quant-ph)]

  23. Iman Marvian and Robert W. Spekkens
    A generalization of Schur-Weyl duality with applications in quantum estimation
    Comm. Math. Phys. 331, 431 (2014)
    [arXiv:1112.0638 (quant-ph)]

  24. Stephen D. Bartlett, Terry Rudolph, Robert W. Spekkens
    Reconstruction of Gaussian quantum mechanics from Liouville mechanics with an epistemic restriction
    Phys. Rev. A 86, 012103 (2012)
    [arXiv:1111.5057 (quant-ph)]

  25. Fernando G. S. L. Brandão, Michal Horodecki, Jonathan Oppenheim, Joseph M. Renes, Robert W. Spekkens
    Resource Theory of Quantum States Out of Thermal Equilibrium
    Phys. Rev. Lett. 111, 250404 (2013)
    [arXiv:1111.3882 (quant-ph)]

  26. M. S. Leifer and Robert W. Spekkens
    A Bayesian approach to compatibility, improvement, and pooling of quantum states
    J. Phys. A: Math. Theor. 47 , 275301 (2014)
    [arXiv:1110.1085 (quant-ph)]

  27. Iman Marvian and Robert W. Spekkens
    Asymmetry properties of pure quantum states
    Phys. Rev. A 90, 014102 (2014)
    [arXiv:1105.1816 (quant-ph)]

  28. Bob Coecke and Robert W. Spekkens
    Picturing classical and quantum Bayesian inference
    Synthese 186, 651 (2012)
    [arXiv:1102.2368 (quant-ph)]

  29. Yeong-Cherng Liang, Robert W. Spekkens, Howard M. Wiseman
    Specker's Parable of the Over-protective Seer: A Road to Contextuality, Nonlocality and Complementarity
    Physics Reports 506, 1 (2011)
    [arXiv:1010.1273 (quant-ph)]

  30. Lucien Hardy and Robert Spekkens
    Why Physics Needs Quantum Foundations
    Physics in Canada 66, 73 (2010)
    [arXiv:1003.5008 (quant-ph)]

  31. Bob Coecke, Bill Edwards, Robert W. Spekkens
    Phase groups and the origin of non-locality for qubits
    Electronic Notes in Theoretical Computer Science 270, 15 (2011)
    [arXiv:1003.5005 (quant-ph)]

  32. Howard Barnum, Jonathan Barrett, Lisa Orloff Clark, Matthew Leifer , Robert Spekkens, Nicholas Stepanik, Alex Wilce and Robin Wilke
    Entropy and information causality in general probabilistic theories
    New J. Phys. 12, 033024 (2010).
    [arXiv:0909.5075 (quant-ph)]

  33. Nicholas Harrigan and Robert W. Spekkens
    Einstein, incompleteness, and the epistemic view of quantum states
    Found. Phys. 40, 125 (2010)
    [arXiv:0706.2661 (quant-ph)]

  34. Gilad Gour, Iman Marvian and Robert W. Spekkens
    Measuring the quality of a quantum reference frame: the relative entropy of frameness
    Phys. Rev. A 80, 012307 (2009)
    [arXiv:0901.0943 (quant-ph)]

  35. Stephen D. Bartlett, Terry Rudolph, Robert W. Spekkens, and Peter S. Turner
    Quantum communication using a bounded-size quantum reference frame
    New J. Phys. 11 063013 (2009)
    arXiv:0812.5040 (quant-ph)

  36. Robert W. Spekkens, D. H. Buzacott, A. J. Keehn, Ben Toner, G. J. Pryde
    Preparation Contextuality Powers Parity-Oblivious Multiplexing
    Phys. Rev. Lett. 102 , 010401 (2009)
    [arXiv:0805.1463 (quant-ph)]

  37. Dennis Kretschmann, David W. Kribs and Robert W. Spekkens
    Complementarity of Private and Correctable Subsystems in Quantum Cryptography and Error Correction
    Phys. Rev. A 78, 032330 (2008)
    [arXiv:0711.3438 (quant-ph)]

  38. Robert W. Spekkens
    Negativity and contextuality are equivalent notions of nonclassicality
    Phys. Rev. Lett. 101, 020401 (2008)
    [arXiv:0710.5549v1 (quant-ph)]

  39. Gilad Gour and Robert W. Spekkens
    The resource theory of quantum reference frames: manipulations and monotones
    New J. Phys. 10, 033023 (2008)
    [arXiv:0711.0043 (quant-ph)]

  40. Robert W. Spekkens and H. M. Wiseman
    Pooling quantum states obtained by indirect measurements
    Phys. Rev. A 75, 042104 (2007)
    [arXiv:quant-ph/0612190]

  41. Stephen D. Bartlett, Terry Rudolph, and Robert W. Spekkens
    Reference frames, superselection rules, and quantum information
    Rev. Mod. Phys. 79, 555 (2007)
    [arXiv:quant-ph/0610030]

  42. Mark R. Dowling, Stephen D. Bartlett, Terry Rudolph, Robert W. Spekkens
    Observing a coherent superposition of an atom and a molecule
    Phys. Rev. A 74, 052113 (2006)
    [arXiv:quant-ph/0606128]

  43. David W. Kribs and Robert W. Spekkens
    Quantum Error-Correcting Subsystems are Unitarily Recoverable Subsystems
    Phys. Rev. A 74, 042329 (2006)
    [arXiv:quant-ph/0608045]

  44. Stephen D. Bartlett, Terry Rudolph, Robert W. Spekkens, and Peter S. Turner,
    Degradation of a quantum reference frame
    New J. Phys. 8, 58 (2006)
    [arXiv:quant-ph/0602069]

  45. Gilad Gour and Robert W. Spekkens
    Entanglement of Assistance is not a bipartite measure nor a tripartite monotone
    Phys. Rev. A 73, 062331 (2006)
    [arXiv:quant-ph/0512139]

  46. Jonathan Oppenheim, Robert W. Spekkens and Andreas Winter
    A classical analogue of negative information
    Accepted for publication in Phys. Rev. Lett but unpublished due to copyright dispute.
    [arXiv:quant-ph/0511247]

  47. Stephen D. Bartlett, Terry Rudolph and Robert W. Spekkens
    Dialogue Concerning Two Views on Quantum Coherence: Factist and Fictionist
    Int. J. Quantum Inf. 4, 17 (2006)
    [arXiv:quant-ph/0507214]

  48. Stephen D. Bartlett, Patrick Hayden and Robert W. Spekkens
    Random subspaces for encryption based on a private shared Cartesian frame
    Phys. Rev. A 72, 052329 (2005)
    [arXiv:quant-ph/0506260]

  49. M. S. Leifer and R. W. Spekkens
    Pre- and Post-selection paradoxes and contextuality in quantum mechanics
    Phys. Rev. Lett. 95, 200405 (2005)
    [arXiv:quant-ph/0412178]

  50. M. S. Leifer and R. W. Spekkens
    Logical Pre- and Post-Selection paradoxes, measurement-disturbance and contextuality
    Proceedings of QS 2004, Int. J. Theor. Phys. 44, 1977 (2005)
    [arXiv:quant-ph/0412179]

  51. Stephen D. Bartlett, Andrew C. Doherty, Robert W. Spekkens and H. M. Wiseman
    Entanglement under restricted operations: Analogy to mixed-state entanglement
    Phys. Rev. A 73, 022311 (2005)
    [arXiv:quant-ph/0412158]

  52. R. W. Spekkens
    Contextuality for preparations, transformations, and unsharp measurements
    Phys. Rev. A 71, 052108 (2005)
    [arXiv:quant-ph/0406166]

  53. Robert W. Spekkens
    Evidence for the epistemic view of quantum states: a toy theory
    Phys. Rev. A 75, 032110 (2007)
    [arXiv:quant-ph/0401052]

  54. Terry Rudolph and Robert W. Spekkens
    Quantum State Targeting
    Phys. Rev. A 70, 052306 (2004)
    [arXiv:quant-ph/0310060]

  55. Stephen D. Bartlett, Terry Rudolph, and Robert W. Spekkens
    Optimal measurements for relative quantum information
    Phys. Rev. A 70, 032321 (2004)
    [arXiv:quant-ph/0310009]

  56. J.-C. Boileau, D. Gottesman, R. Laflamme, D. Poulin, R.W. Spekkens
    Robust polarization-based quantum key distribution over collective-noise channel
    Phys. Rev. Lett. 92, 017901 (2004)
    [arXiv:quant-ph/0306199]

  57. Terry Rudolph, Robert W. Spekkens, Peter S. Turner
    Unambiguous discrimination of mixed states
    Phys. Rev. A 68, 010301(R) (2003)
    [arXiv:quant-ph/0303071]

  58. Stephen D. Bartlett, Terry Rudolph and R. W. Spekkens,
    Classical and Quantum Communication without a Shared Reference Frame,
    Phys. Rev. Lett. 91, 027901 (2003)
    [arXiv:quant-ph/0302111]

  59. R. W. Spekkens and Terry Rudolph
    Quantum protocol for cheat-sensitive weak coin flipping
    Phys. Rev. Lett. 89, 227901 (2002)
    [arXiv:quant-ph/0202118]

  60. R. W. Spekkens and T. Rudolph
    Optimization of coherent attacks in generalizations of the BB84 quantum bit commitment protocol
    Quantum Inform. Compu. 2, 66 (2002)
    [arXiv:quant-ph/0107042]

  61. R. W. Spekkens and T. Rudolph
    Degrees of concealment and bindingness in quantum bit commitment protocols
    Phys. Rev. A 65, 012310 (2001)
    [arXiv:quant-ph/0106019]

  62. R. W. Spekkens and J. E. Sipe
    A Modal Interpretation of Quantum Mechanics Based on a Principle of Entropy Minimization
    Found. Phys. 31, 1431 (2001)
    [arXiv:quant-ph/0003092]

  63. R. W. Spekkens and J. E. Sipe
    Non-Orthogonal Core Projectors for Modal Interpretations of Quantum Mechanics
    Found. Phys. 31, 1403 (2001).
    [arXiv:quant-ph/0003092]

  64. R. W. Spekkens and J. E. Sipe
    Spatial fragmentation of a Bose-Einstein condensate in a double-well potential
    Phys. Rev. A 59, 3868 (1999)
    [arXiv:quant-ph/9810094]