Publications

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U
G. Sentís, Monras, A., Muñoz-Tapia, R., Calsamiglia, J., and Bagan, E., “Unsupervised Classification of Quantum Data”, Physical Review X, vol. 9, p. 041029, 2019.
M. Fanizza, Skotiniotis, M., Calsamiglia, J., Muñoz-Tapia, R., and Sentís, G., “Universal algorithms for quantum data learning”, Europhysics Letters, vol. 140, p. 28001, 2022.
S
E. Bagan, Ballester, M. A., Gill, R. D., Muñoz-Tapia, R., and Romero-Isart, O., “Separable Measurement Estimation of Density Matrices and its Fidelity Gap with Collective Protocols”, Physical Review Letters, vol. 97, pp. 130501–4, 2006.
A. Acín, Bae, J., Bagan, E., Baig, M., Masanes, L., and Muñoz-Tapia, R., “Secrecy properties of quantum channels”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 73, pp. 012327–5, 2006.
R
E. Bagan, Iblisdir, S., and Muñoz-Tapia, R., “Relative states, quantum axes, and quantum references”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 73, pp. 022341–6, 2006.
L. Domingo Colomer, Skotiniotis, M., and Muñoz-Tapia, R., “Reinforcement learning for optimal error correction of toric codes”, Physics Letters A, vol. 384, p. 126353, 2020.
P. Rapcan, Calsamiglia, J., Muñoz-Tapia, R., Bagan, E., and Buzek, V., “Recycling of qubits”, Physica Scripta, vol. T140, p. 014059, 2010.
P. Rapcan, Calsamiglia, J., Muñoz-Tapia, R., Bagan, E., and Bużek, V., “Recycling of quantum information: Multiple observations of quantum systems”, arXiv, 2007.
Q
E. Martínez Vargas, Hirche, C., Sentís, G., Skotiniotis, M., Carrizo, M., Muñoz-Tapia, R., and Calsamiglia, J., “Quantum Sequential Hypothesis Testing”, Physical Review Letters, vol. 126, 2021.
E. Bagan, Baig, M., and Muñoz-Tapia, R., “Quantum reverse engineering and reference-frame alignment without nonlocal correlations”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 70, p. 030301, 2004.
G. Sentís, Calsamiglia, J., Muñoz-Tapia, R., and Bagan, E., “Quantum learning without quantum memory”, Scientific Reports (Nature Publishing Group), vol. 2, p. 708, 2012.
J. Calsamiglia, Muñoz-Tapia, R., Masanes, L., Acín, A., and Bagan, E., “Quantum Chernoff bound as a measure of distinguishability between density matrices: Application to qubit and Gaussian states”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 77, pp. 032311–15, 2008.
G. Sentís, Bagan, E., Calsamiglia, J., Chiribella, G., and Muñoz-Tapia, R., “Quantum Change Point”, Physical Review Letters, vol. 117, 2016.
M. (formerly M. A. ) Bracons, “Quantum Accuracy Limits and Benchmarks in Continuos Variable Systems”, Universitat Autònoma de Barcelona, Barcelona, 2011.
P
E. Bagan, Ballester, M. A., Muñoz-Tapia, R., and Romero-Isart, O., “Purity Estimation with Separable Measurements”, Physical Review Letters, vol. 95, p. 110504, 2005.
J. Calsamiglia, Aspachs, M., Muñoz-Tapia, R., and Bagan, E., “Phase-covariant quantum benchmarks”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 79, pp. 050301–4, 2009.
E. Bagan, Monras, A., and Muñoz-Tapia, R., “Phase variance of squeezed vacuum states”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 78, pp. 043829–7, 2008.
M. Aspachs, Calsamiglia, J., Muñoz-Tapia, R., and Bagan, E., “Phase estimation for thermal Gaussian states”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 79, pp. 033834–12, 2009.
O
O. Oreshkov, Calsamiglia, J., Muñoz-Tapia, R., and Bagan, E., “Optimal signal states for quantum detectors”, New Journal of Physics, vol. 13, p. 073032, 2011.
E. Bagan, Baig, M., Monras, A., and Muñoz-Tapia, R., “Optimal reconstruction of a pure qubit state with local measurements”, in Proceedings of the 8th ICSSUR, 2003.
E. Bagan, Ballester, M. A., Gill, R. D., Monras, A., and Muñoz-Tapia, R., “Optimal full estimation of qubit mixed states”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 73, pp. 032301–18, 2006.
G. Sentís, Martínez-Vargas, E., and Muñoz-Tapia, R., “Online strategies for exactly identifying a quantum change point”, Physical Review A, vol. 9857, 2018.
G. Sentís, Martínez-Vargas, E., and Muñoz-Tapia, R., “Online identification of symmetric pure states”, Quantum, vol. 6, p. 658, 2022.
M
A. Acín, Bagan, E., Baig, M., Masanes, L., and Muñoz-Tapia, R., “Multiple-copy two-state discrimination with individual measurements”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 71, p. 032338, 2005.
G. Sentís, Bagan, E., Calsamiglia, J., and Muñoz-Tapia, R., “Multicopy programmable discrimination of general qubit states”, Physical Review A, vol. 82, p. 042312, 2010.
H
E. Bagan, Calsamiglia, J., Demkowicz-Dobrzanski, R., and Muñoz-Tapia, R., “How to hide a secret direction”, New Journal of Physics, vol. 9, p. 244, 2007.
E
S. Yu, Huang, C. - J., Tang, J. - S., Jia, Z. - A., Wang, Y. - T., Ke, Z. - J., Liu, W., Liu, X., Zhou, Z. - Q., Di Cheng, Z. -, Xu, J. - S., Wu, Y. - C., Zhao, Y. - Y., Xiang, G. - Y., Li, C. - F., Guo, G. - C., Sentís, G., and Muñoz-Tapia, R., “Experimentally detecting a quantum change point via the Bayesian inference”, Physical Review A, vol. 98, 2018.
G. Sentís, Calsamiglia, J., and Muñoz-Tapia, R., “Exact Identification of a Quantum Change Point”, PHYSICAL REVIEW LETTERS, vol. 119, 2017.
J. I. de Vicente, Calsamiglia, J., Muñoz-Tapia, R., and Bagan, E., “Estimation of quantum finite mixtures”, Physical Review A, vol. 81, p. 012332, 2010.
E. Bagan, Baig, M., and Muñoz-Tapia, R., “Entanglement-assisted alignment of reference frames using a dense covariant coding”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 69, p. 050303, 2004.
D
K. M. R. Audenaert, Calsamiglia, J., Muñoz-Tapia, R., Bagan, E., Masanes, L., Acín, A., and Verstraete, F., “Discriminating States: The Quantum Chernoff Bound”, Physical Review Letters, vol. 98, pp. 160501–4, 2007.
A. Pujol, “Discriminació quàntica”, Universitat Autònoma de Barcelona, Barcelona, 2010.
C
E. Bagan, Monras, A., and Muñoz-Tapia, R., “Comprehensive analysis of quantum pure-state estimation for two-level systems”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 71, p. 062318, 2005.
E. Bagan, Baig, M., Muñoz-Tapia, R., and Rodriguez, A., “Collective versus local measurements in a qubit mixed-state estimation”, Physical Review A (Atomic, Molecular, and Optical Physics), vol. 69, p. 010304, 2004.
E. Martínez Vargas and Muñoz-Tapia, R., “Certified answers for ordered quantum discrimination problems”, Phys. Rev. A, vol. 100, p. 042331, 2019.
B
B. Gendra, Ronco-Bonvehi, E., Calsamiglia, J., Muñoz-Tapia, R., and Bagan, E., “Beating noise with abstention in state estimation”, New Journal of Physics, vol. 14, p. 105015, 2012.
A
E. Bagan and Muñoz-Tapia, R., “Aligning spatial frames through quantum channels”, International Journal of Quantum Information, vol. 4, p. 5, 2006.
E. Bagan, Baig, M., and Muñoz-Tapia, R., “Aligning Reference Frames with Quantum States”, arXiv, 2001.
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