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I am interested in the novel features of quantum theory and how they can be used in information processing tasks. To find these features I have studied quantum theory in contrast to classical physics, but also in contrast to other possible theories that go beyond quantum theory.
I have worked on various subjects within quantum information and the foundations of quantum theory such as quantum computation, quantum random number generation, the characterisation of quantum non-locality, the certification of quantum devices, and computation in theories beyond quantum theory. I am currently interested in how one can verify quantum computers, certify quantum devices given limited information about them, and developing methods for quantum causal discovery. |
Quantum Non-locality
A common thread through much of my research is the study of correlations produced by entangled quantum systems, known as quantum non-locality. This is one of the most striking features of quantum theory in contrast to classical physics, and I have studied how it can be used in information tasks such as quantum computing. In the other direction, I have looked at how quantum non-locality may be characterised in terms of its information processing power.
Characterisation of Quantum Non-locality
Almost quantum correlations
M Navascués, Y Guryanova, MJ Hoban, A Acín
Nature communications 657 (2015)
Stronger Quantum Correlations with Loophole-Free Postselection
MJ Hoban, DE Browne
Physical Review Letters 107 (12), 1204026 (2011)
Quantum Non-locality and Random Number Certification
A Single Entangled System Is an Unbounded Source of Nonlocal Correlations and of Certified Random Numbers
FJ Curchod, M Johansson, R Augusiak, MJ Hoban, P Wittek, A Acín
LIPIcs-Leibniz International Proceedings in Informatics 73 (2018)
Unbounded randomness certification using sequences of measurements
FJ Curchod, M Johansson, R Augusiak, MJ Hoban, P Wittek, A Acín
Physical Review A 95 (2), 020102(R) (2017)
Maximally nonlocal theories cannot be maximally random
G de la Torre, MJ Hoban, C Dhara, G Prettico, A Acín
Physical Review Letters 114 (16), 160502 (2015)
EPR-steering
Self-testing through EPR-steering
I Šupić, MJ Hoban
New Journal of Physics 18 (7), 075006 (2016)
A channel-based framework for steering, non-locality and beyond
MJ Hoban, AB Sainz
New J. Phys. 2018, in press https://doi.org/10.1088/1367-2630/aabea8
A formalism for steering with local quantum measurements
AB Sainz, L Aolita, M Piani, MJ Hoban, P Skrzypczyk
arXiv:1708.00756 (2017)
Quantum networks
Towards device-independent information processing on general quantum networks
CM Lee, MJ Hoban
Physical Review Letters 120 (2), 020504 (2018)
The Foundations of Quantum Computation
I am interested in how quantum computers are fundamentally different from other forms of computer, such as classical computation. I have looked at models of computation and their relation to the non-classical features of quantum mechanics. In addition to this, I have studied computation beyond standard quantum computers, such as computation in general physical theories, and post-selected quantum computation.
Quantum Non-locality and Quantum Computation
Majorana fermions and non-locality
ET Campbell, MJ Hoban, J Eisert
Quantum Information & Computation 14 (11-12), 981-9955 (2014)
Measurement-based classical computation
MJ Hoban, JJ Wallman, H Anwar, N Usher, R Raussendorf, DE Browne
Physical Review Letters 112 (14), 14050517 (2014)
Generalized Bell-inequality experiments and computation
MJ Hoban, JJ Wallman, DE Browne
Physical Review A 84 (6), 06210710 (2011)
Non-adaptive measurement-based quantum computation and multi-party Bell inequalities
MJ Hoban, ET Campbell, K Loukopoulos, DE Browne
New Journal of Physics 13 (2), 023014 (2011)
Computation in General Probabilistic Theories
The computational landscape of general physical theories
J Barrett, N de Beaudrap, MJ Hoban, CM Lee
arXiv:1702.08483 (2017)
The Information Content of Systems in General Physical Theories
CM Lee, MJ Hoban
In A. A. Abbott and D. C. Horsman: Proceedings of the 7th International Workshop on Physics and Computation (PC 2016), Manchester, UK, 14 July 2016, Electronic Proceedings in Theoretical Computer Science 214, pp. 22–28 (2016)
Bounds on the power of proofs and advice in general physical theories
CM Lee, MJ Hoban
Proc. R. Soc. A 472 (2190), 20160076 (2016)
Quantum Computation with Post-selection
Non-Unitary Quantum Computation in the Ground Space of Local Hamiltonians
N Usher, MJ Hoban, DE Browne
arXiv:1703.08118 (2017)
Verification of Quantum Computation
A simple protocol for fault tolerant verification of quantum computation
A Gheorghiu, MJ Hoban, E Kashefi
arXiv:1804.06105 (2018)
A common thread through much of my research is the study of correlations produced by entangled quantum systems, known as quantum non-locality. This is one of the most striking features of quantum theory in contrast to classical physics, and I have studied how it can be used in information tasks such as quantum computing. In the other direction, I have looked at how quantum non-locality may be characterised in terms of its information processing power.
Characterisation of Quantum Non-locality
Almost quantum correlations
M Navascués, Y Guryanova, MJ Hoban, A Acín
Nature communications 657 (2015)
Stronger Quantum Correlations with Loophole-Free Postselection
MJ Hoban, DE Browne
Physical Review Letters 107 (12), 1204026 (2011)
Quantum Non-locality and Random Number Certification
A Single Entangled System Is an Unbounded Source of Nonlocal Correlations and of Certified Random Numbers
FJ Curchod, M Johansson, R Augusiak, MJ Hoban, P Wittek, A Acín
LIPIcs-Leibniz International Proceedings in Informatics 73 (2018)
Unbounded randomness certification using sequences of measurements
FJ Curchod, M Johansson, R Augusiak, MJ Hoban, P Wittek, A Acín
Physical Review A 95 (2), 020102(R) (2017)
Maximally nonlocal theories cannot be maximally random
G de la Torre, MJ Hoban, C Dhara, G Prettico, A Acín
Physical Review Letters 114 (16), 160502 (2015)
EPR-steering
Self-testing through EPR-steering
I Šupić, MJ Hoban
New Journal of Physics 18 (7), 075006 (2016)
A channel-based framework for steering, non-locality and beyond
MJ Hoban, AB Sainz
New J. Phys. 2018, in press https://doi.org/10.1088/1367-2630/aabea8
A formalism for steering with local quantum measurements
AB Sainz, L Aolita, M Piani, MJ Hoban, P Skrzypczyk
arXiv:1708.00756 (2017)
Quantum networks
Towards device-independent information processing on general quantum networks
CM Lee, MJ Hoban
Physical Review Letters 120 (2), 020504 (2018)
The Foundations of Quantum Computation
I am interested in how quantum computers are fundamentally different from other forms of computer, such as classical computation. I have looked at models of computation and their relation to the non-classical features of quantum mechanics. In addition to this, I have studied computation beyond standard quantum computers, such as computation in general physical theories, and post-selected quantum computation.
Quantum Non-locality and Quantum Computation
Majorana fermions and non-locality
ET Campbell, MJ Hoban, J Eisert
Quantum Information & Computation 14 (11-12), 981-9955 (2014)
Measurement-based classical computation
MJ Hoban, JJ Wallman, H Anwar, N Usher, R Raussendorf, DE Browne
Physical Review Letters 112 (14), 14050517 (2014)
Generalized Bell-inequality experiments and computation
MJ Hoban, JJ Wallman, DE Browne
Physical Review A 84 (6), 06210710 (2011)
Non-adaptive measurement-based quantum computation and multi-party Bell inequalities
MJ Hoban, ET Campbell, K Loukopoulos, DE Browne
New Journal of Physics 13 (2), 023014 (2011)
Computation in General Probabilistic Theories
The computational landscape of general physical theories
J Barrett, N de Beaudrap, MJ Hoban, CM Lee
arXiv:1702.08483 (2017)
The Information Content of Systems in General Physical Theories
CM Lee, MJ Hoban
In A. A. Abbott and D. C. Horsman: Proceedings of the 7th International Workshop on Physics and Computation (PC 2016), Manchester, UK, 14 July 2016, Electronic Proceedings in Theoretical Computer Science 214, pp. 22–28 (2016)
Bounds on the power of proofs and advice in general physical theories
CM Lee, MJ Hoban
Proc. R. Soc. A 472 (2190), 20160076 (2016)
Quantum Computation with Post-selection
Non-Unitary Quantum Computation in the Ground Space of Local Hamiltonians
N Usher, MJ Hoban, DE Browne
arXiv:1703.08118 (2017)
Verification of Quantum Computation
A simple protocol for fault tolerant verification of quantum computation
A Gheorghiu, MJ Hoban, E Kashefi
arXiv:1804.06105 (2018)