Quantum key distribution theory
Deployment of QKD and other quantum safe technologies
Device independent and semi device independent characterization
Characterization of the quantum set of correlations
Correlation in a network
Tree size complexity of quantum states
Commuting and non-commuting polynomial optimization
Neural networks
Le H.N., Y. Cai, X. Wu, V. Scarani. Tree-size complexity of multiqubit states. Phys. Rev. A 88 012321 (2013)
Le H.N., Y. Cai, X. Wu, R. Rabelo, V. Scarani. Maximal tree size of few-qubit states. Phys. Rev. A 89 062333 (2014)
X. Wu, Y. Cai, T.H. Yang, Le H. N., J.D. Bancal, V. Scarani. Robust self testing of the 3-qubit W state. Phys. Rev. A 90 042339 (2014) (Editors' Suggestion)
Y. Cai, Le H.N., V. Scarani. State complexity and quantum computation. Ann. Phys. 527 684 (2015)
Y. Cai, J.D. Bancal, J. Romero, V. Scarani. A new device-independent dimension witness and its experimental implementation. J. Phys. A: Math. Theor. 49 305301 (2016)
E. Y.-Z. Tan, Y. Cai, V. Scarani. Measurement-dependent locality beyond independent and identically distributed runs. Phys. Rev. A 94 032117 (2016)
H.S. Poh, A. Cere, J.D. Bancal, Y. Cai, N. Sangouard, V. Scarani, C. Kurtsiefer. Experimental many-pairs nonlocality. Phys. Rev. A 96 022101 (2017)
W. Cong, Y. Cai, J.D. Bancal, V. Scarani. Irreducible dimension witness. Phys. Rev. Lett. 119 080401 (2017)
Y. Zhou, Y. Cai, J.D. Bancal, F. Gao, V. Scarani. Many-box locality. Phys. Rev. A 96, 052108 (2017)
K.T. Goh, J. Kaniewski, E. Wolfe, T. Vertesi, X. Wu, Y. Cai, Y.C. Liang, V. Scarani. Geometry of the quantum set of correlations. Phys. Rev. A 97, 022104 (2018) (Editors' Suggestion)
X. Li, Y. Cai, Y. Han, Q. Wen, V. Scarani. Self-testing using only marginal information. Phys. Rev. A 98 052331 (2018)
L.P. Thinh, A. Varvitsiotis, and Y Cai. Geometric structure of quantum correlators via semidefinite programming. Phys. Rev. A 99, 052108 (2019)
W. Shi, Y. Cai, J.B. Brask, H. Zbinden, and N. Brunner. Semi-device-independent characterization of quantum measurements under a minimum overlap assumption. Phys. Rev. A 100, 042108 (2019)
A. Shu, Y. Cai, S. Seah, S. Nimmrichter, and V. Scarani. Almost thermal operations: Inhomogeneous reservoirs. Phys. Rev. A 100, 042107 (2019)
N. Gisin, J.D. Bancal, Y. Cai, P. Remy, A. Tavakoli, E. Zambrini Cruzeiro, S. Popescu, N. Brunner. Constraints on nonlocality in networks from no-signaling and independence. Nat Commun 11, 2378 (2020).
T. Kriváchy, Y. Cai, D. Cavalcanti, A. Tavakoli, N. Gisin & N. Brunner A neural network oracle for quantum nonlocality problems in networks. npj Quantum Inf 6, 70 (2020).
I referee for Physical Review Letters, Physical Review A and Scientific Report