Articles
2025
- Advancing Photonic Chip Design With Interpretable Machine Learning
L. Pira, A. Antony, N. Prathap, J. A. Roque, D. Peace, and J. Romero
submitted arXiv, 2025 - Near-unity quantum interference of transverse spatial modes in an ultra-compact inverse-designed photonic device
J. A. Roque, D. Peace, S. White, E. Polino, S. Das, F. Ghafari, S. Slussarenko, N. Tischler, and J. Romero
APL Photonics 11, 026101 - Self-guided tomography of time-frequency qudits
L. Serino, M.Rambach, B. Brecht, J. Romero, and C. Silberhorn
Quantum Science and Technology 10, 025024 - On-chip high-dimensional entangled photon sources
T. Kaur, D. Peace, and J. Romero
Journal of Optics 27, 023001
- Advancing Photonic Chip Design With Interpretable Machine Learning
2024
- Photonic Quantum Computing
J. Romero and G. J. Milburn
Oxford Research Encyclopedia,
arXiv preprint
- Photonic Quantum Computing
2023
- Universal quantum computation via superposed orders of single-qubit gates
K. Simonov, M.Caleffi, J. Illiano, J. Romero, and A. S. Cacciapuoti
Physical Review Research 131, 130201 - Randomness-free Test of Non-classicality: a Proof of Concept
Z. Ma, M. Rambach, K. Goswami, S.S. Bhattacharya, M. Banik, and J. Romero
Physical Review Letters 131, 130201 - Approximate reconstructability of quantum states and noisy quantum secret sharing schemes
Y. Ouyang, K. Goswami, J. Romero, B. C. Sanders, M.-H. Hsieh, and M. Tomamichel
Physical Review A 108, 012425
- Universal quantum computation via superposed orders of single-qubit gates
2022
- Efficient Quantum State Tracking in Noisy Environments
M. Rambach, A. Youssry, M. Tomamichel, J. Romero
Quantum Science and Technology 4, 012501 - Roadmap on integrated quantum photonics
G. Moody, V. J. Sorger, D. J. Blumenthal, P. W. Juodawlkis, W. Loh, C. Sorace-Agaskar, A. E. Jones, K. C. Balram, J. C. F. Matthews, A. Laing, M. Davanco, L. Chang, J. E. Bowers, N. Quack, C. Galland, I. Aharonovich, M. A. Wolff, C. Schuck, N. Sinclair, M. Lončar, T. Komljenovic, D. Weld, S. Mookherjea, S. Buckley, M. Radulaski, S. Reitzenstein, B. Pingault, B. Machielse, D. Mukhopadhyay, A. Akimov, A. Zheltikov, G. S. Agarwal, K. Srinivasan, J. Lu, H. X. Tang, W. Jiang, T. P. McKenna, A. H. Safavi-Naeini, S. Steinhauer, A.W. Elshaari, V. Zwiller, P. S. Davids, N. Martinez, M. Gehl, J. Chiaverini, K.K. Mehta, J. Romero, N. B. Lingaraju, A. M. Weiner, D. Peace, R. Cernansky, M. Lobino, E. Diamanti, L.T. Vidarte and R. M. Camacho
JPhys Photonics 4, 012501 - Entanglement Levels Up
J. Romero and M. Rambach
Optics and Photonics News 33, 31
- Efficient Quantum State Tracking in Noisy Environments
2021
- Experimental characterisation of a non-Markovian quantum process
K. Goswami, C. Giarmatzi, C. Monterola, S. Shrapnel, J. Romero and F. Costa
Physical Review A 104, 022432 (Editors’ suggestion) - Robust and efficient high-dimensional quantum state tomography
M. Rambach, M. Qaryan, M. Kewming, C. Ferrie, A.G. White, and J. Romero
Physical Review Letters 126, 100402 (Editors’ suggestion)
Finding quvigints in a quantum treasure map
- Experimental characterisation of a non-Markovian quantum process
2020
- Experiments on quantum causality
K. Goswami and J. Romero
AVS Quantum Science 2, 037101 - Increasing communication capacity via superposition of order
K. Goswami, Y. Cao, G.A. Paz-Silva, J. Romero, and A.G. White
Physical Review Research 2, 033292 - Hiding ignorance using high dimensions
M. Kewming, S. Shrapnel, A.G. White, and J. Romero
Physical Review Letters 124, 250401
Quantum physics provides a way to hide ignorance - Quantum correlations in the Kerr Ising model
M. Kewming, S. Shrapnel, and G. Milburn
New Journal of Physics 22 053042 - Distribution of high-dimensional orbital angular momentum entanglement at telecom wavelength over 1km of optical fibre
H. Cao, S.C. Gao, C. Zhang, J. Wang, D.Y. He, B.H. Liu, Z.W. Zhou, Y.J. Chen, Z.H. Li, S.Y. Yu, J. Romero, Y.F. Huang, C.F. Li, and G.C. Guo
Optica 7 (3) 232-237
- Experiments on quantum causality
2018
- Indefinite causal order in a quantum switch
K. Goswami, C. Giarmatzi, M. Kewming, F. Costa, C. Branciard, J. Romero, and A.G. White
Physical Review Letters 121, 090503 (Editors’ suggestion)
Physics World 2018 Top Breakthroughs in Physics Shortlist
Quantum chicken-or-egg experiment blurs the distinction between before and after
- Indefinite causal order in a quantum switch
2016
- Roadmap on structured light
H. Rubinsztein-Dunlop, A. Forbes, M.V. Berry, M.R. Dennis, D.L. Andrews,M. Mansuripur, C. Denz, C. Alpmann,P. Banzer, T. Bauer, E. Karimi, L. Marucci, M.J. Padgett, M. Ritsch-Marte, N.M. Litchinitser, N.P. Bigelow, C. Rosales-Guzman, A. Belmonte, J.P. Torres, T.W. Neely, M. Baker, R. Gordon, A.B. Stilgoe, J. Romero, A.G. White, R. Fickler, A.E. Willner, G. Xie, B. McMorran, and A.M. Weiner
Journal of Optics 19 , 013001 - A new device-independent dimension witness and its experimental implementation
Y. Cai, J-D. Bancal, J Romero, and V. Scarani
Journal of Physics A: Mathematical and Theoretical 49 (30), 305301 - Coherent absorption of N00N states
T. Roger, S. Restuccia, A. Lyons, D. Giovannini, J. Romero , J. Jeffers, M.J. Padgett, and D. Faccio
Physical Review Letters 117 , 023601
- Roadmap on structured light
2015 (prior to UQ)
- Spatially structured photons that travel in free space slower than the speed of light
D. Giovannini*, J. Romero*, V. Potocek, G. Ferenczi, F. Speirits, S.M. Barnett, D. Faccio, and M.J. Padgett
*authors contributed equally
Science 347 , 857-860
- Spatially structured photons that travel in free space slower than the speed of light
2014
- Practical bound for dimensionality in high-dimensional entanglement
J. Romero and M.J. Padgett
Proceedings of the National Academy of Sciences 111 (17), 6122-6123 - Quantum digital spiral imaging
L. Chen, J. Lei, and J. Romero
Light: Science and Applications 3 (3), e153 - Interference of probability amplitudes: a simple demonstration within the Hong-Ou-Mandel experiment
D. Giovannini, J. Romero, and M.J. Padgett
Journal of Optics 16 (3), 032002
- Practical bound for dimensionality in high-dimensional entanglement
2013
- Two-photon optics of Bessel-Gaussian modes
M.G. McLaren, J. Romero , M.J. Padgett, F.S. Roux, and A. Forbes
Physical Review A 88 (3), 033818 - Tailored two-photon correlation and fair-sampling: a cautionary tale
J. Romero , D. Giovannini, D.S. Tasca, S.M. Barnett, and M.J. Padgett
New Journal of Physics 15 (8), 083047 - Characterization of high-dimensional entangled systems via mutually unbiased measurements
D. Giovannini, J. Romero , J. Leach, A. Dudley, A. Forbes, and M.J. Padgett
Physical Review Letters 110 (14), 143601
- Two-photon optics of Bessel-Gaussian modes
2012
- Hardy’s nonlocality proof using twisted photons
L.Chen and J. Romero
Optics Express 20 (19) 21687-21692 - Orbital angular momentum correlations with a phase-flipped Gaussian mode pump beam
J. Romero, D. Giovannini, M.G. McLaren, E.J. Galvez, A. Forbes, and M.J. Padgett
Journal of Optics 14 (8), 085401 - Increasing the dimension in high-dimensional two-photon orbital angular momentum entanglement
J. Romero , D. Giovannini, S. Franke-Arnold, S.M. Barnett, and M.J. Padgett
Physical Review A 86 (1), 012334 - Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems
F. M. Miatto, D. Giovannini, J. Romero , S. Franke-Arnold, S.M Barnett, and M.J. Padgett
European Physical Journal D 66 , 178 - Determining the dimensionality of bipartite orbital-angular-momentum entanglement using multi-sector phase masks
D. Giovannini, F.M. Miatto, J. Romero , S.M. Barnett, J.P. Woerdman, and M.J. Padgett
New Journal of Physics 14 , 073046
- Hardy’s nonlocality proof using twisted photons
2011
- Entangled optical vortex links
J. Romero , J. Leach, B. Jack, M.R. Dennis, S. Franke-Arnold, S.M. Barnett, and M.J. Padgett
Physical Review Letters 106 , 100407
- Entangled optical vortex links
2010
- Violation of Leggett inequalities in orbital angular momentum subspaces
J. Romero , J. Leach, B. Jack, S.M. Barnett, M.J. Padgett, and S. Franke-Arnold
New Journal of Physics 12 , 123007 - Quantum correlations in optical angle orbital angular momentum variables
J. Leach, B. Jack, J. Romero , A.K. Jha, A.M. Yao, S. Franke-Arnold, D.G. Ireland, R.W. Boyd, S.M. Barnett, and M.J. Padgett
Science 329 , 662-665 - Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces
B. Jack, A.M. Yao, J. Leach, J. Romero , S. Franke-Arnold, D.G. Ireland, S.M. Barnett, and M.J. Padgett
Physical Review A 81 , 043844 - Laser confocal microscope with wavelet-profiled point spread function
M.J. Romero , G. Bautista, V.R. Daria, and C. Saloma
Optics Communications 283 (7), 1217-1221
- Violation of Leggett inequalities in orbital angular momentum subspaces
2009
- Holographic ghost imaging and the violation of a Bell inequality
B. Jack, J. Leach, J. Romero , S. Franke-Arnold, M. Ritsch-Marte, S.M. Barnett, and M.J. Padgett
Physical Review Letters 103 , 083602 - Violation of a Bell inequality in two-dimensional orbital angular momentum state-spaces
J. Leach, B. Jack, J. Romero , M. Ritsch-Marte, R. W. Boyd, A.K. Jha, S.M. Barnett, S. Franke-Arnold, and M.J. Padgett
Optics Express 17 , 8287-8293 - Parallel two-photon photopolymerization of microgear patterns
G. Bautista, M.J. Romero , G Tapang, and V.R. Daria
Optics Communications 282 (18), 3746-3750
- Holographic ghost imaging and the violation of a Bell inequality
2007
- Modifed filter design to optimize the synthetic reference wave in the generalized phase contrast method
M.J. Romero and V.R. Daria
Optics Communications 280 (2), 237-242
- Modifed filter design to optimize the synthetic reference wave in the generalized phase contrast method
Book Chapters
- Orbital angular momentum: Testbed for quantum mechanics
J. Romero and M.J. Padgett
in Quantum Information and Coherence; E. Andersson and P. Öhberg (Eds.)
Springer International Publishing (2014) - An experimentalist’s introduction to orbital angular momentum for quantum optics
J.Romero, D. Giovannini, S. Franke-Arnold, and M.J. Padgett
in The Angular Momentum of Light; D. Andrews and M. Babiker (Eds.)
Cambridge University Press (2013)
- Orbital angular momentum: Testbed for quantum mechanics