Información del autor
Autor Martín-Delgado Alcántara, Miguel Ángel |
Documentos disponibles escritos por este autor (45)
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Viyuela, O. ; Rivas, A. ; Gasparinetti, S. ; Wallraff, A. ; Filipp, S. ; Martín-Delgado Alcántara, Miguel Ángel | Nature Publishing Group | 2018-02-12Topological insulators and superconductors at finite temperature can be characterized by the topological Uhlmann phase. However, a direct experimental measurement of this invariant has remained elusive in condensed matter systems. Here, we repor[...]![]()
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We construct a descriptive toy model that considers quantum effects on biological evolution starting from Chaitin’s classical framework. There are smart evolution scenarios in which a quantum world is as favorable as classical worlds for evoluti[...]![]()
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Andrist, Ruben S. ; Bombin, H. ; Katzgraber, Helmut G. ; Martín-Delgado Alcántara, Miguel Ángel | American Physical Society | 2012-05-14A promising approach to overcome decoherence in quantum computing schemes is to perform active quantum error correction using topology. Topological subsystem codes incorporate both the benefits of topological and subsystem codes, allowing for er[...]![]()
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Moreno Casares, Pablo Antonio ; Martín-Delgado Alcántara, Miguel Ángel | IOP publishing ltd | 2020-07Adversarial attacks represent a serious menace for learning algorithms and may compromise the security of future autonomous systems. A theorem by Khoury and Hadfield-Menell (KH), provides sufficient conditions to guarantee the robustness of acti[...]![]()
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De las Cuevas, G. ; Dürt, W. ; Van den Nest, M. ; Martín-Delgado Alcántara, Miguel Ángel | IOP Publishing | 2011-09-09We give efficient quantum algorithms to estimate the partition function of (i) the six-vertex model on a two-dimensional (2D) square lattice, (ii) the Ising model with magnetic fields on a planar graph, (iii) the Potts model on a quasi-2D square[...]![]()
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Nigg, Daniel ; Müller, Markus ; Martínez, Esteban A. ; Schindler, Philipp ; Hennrich, Markus ; Monz, Thomas ; Martín-Delgado Alcántara, Miguel Ángel ; Blatt, Rainer | Amer Assoc Advancement Science | 2014-07-18The construction of a quantum computer remains a fundamental scientific and technological challenge, in particular due to unavoidable noise. Quantum states and operations can be protected from errors using protocols for fault-tolerant quantum co[...]![]()
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Paparo, G.D. ; Müller, Markus ; Comellas, F. ; Martín-Delgado Alcántara, Miguel Ángel | Springer Heidelberg | 2014-07-22We review the main findings on the ranking capabilities of the recently proposed Quantum PageRank algorithm [1, 2] applied to large complex networks. The algorithm has been shown to identify unambiguously the underlying topology of the network a[...]![]()
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Paparo, Giuseppe Davide ; Müller, Markus ; Comellas, Francesc ; Martín-Delgado Alcántara, Miguel Ángel | Nature Publishing Group | 2013-10-04We investigate the behaviour of the recently proposed Quantum PageRank algorithm, in large complex networks. We find that the algorithm is able to univocally reveal the underlying topology of the network and to identify and order the most releva[...]![]()
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Díaz de la Cruz, J.M. ; Martín-Delgado Alcántara, Miguel Ángel | American Physical Society | 2014-03-19We introduce quantum information engines that extract work from quantum states and a single thermal reservoir. They may operate under three general conditions—(1) unitarily steered evolution (US), driven by a restricted set of available Hamilton[...]![]()
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Dauphin, Alexander ; Müller, Markus ; Martín-Delgado Alcántara, Miguel Ángel | American Physical Society | 2016-04-11We propose a realistic scheme to quantum simulate the so-far experimentally unobserved topological Mott insulator phase-an interaction-driven topological insulator-using cold atoms in an optical Lieb lattice. To this end, we study a system of sp[...]![]()
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Davide Paparo, Giuseppe ; Dunjko, Vedran ; Makmal, Adi ; Martín-Delgado Alcántara, Miguel Ángel ; Briegel, Hans J. | American Physical Society (APS) | 2014-06-08Can quantum mechanics help us build intelligent learning agents? A defining signature of intelligent behavior is the capacity to learn from experience. However, a major bottleneck for agents to learn in reallife situations is the size and comple[...]![]()
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Goldman, N. ; Satija, I. ; Nikolic, P. ; Bermúdez, A. ; Martín-Delgado Alcántara, Miguel Ángel ; Lewenstein, M. ; Spielman, I.B. | American Physical Society | 2010-12-16We lay out an experiment to realize time-reversal invariant topological insulators in alkali atomic gases. We introduce an original method to synthesize a gauge field in the near field of an atom chip, which effectively mimics the effects of spi[...]![]()
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Weinfurtner, Silke ; De las Cuevas, Gemma ; Martín-Delgado Alcántara, Miguel Ángel ; Briegel, Hans J. | IOP publishing ltd | 2014-03-07We present a new description of discrete space-time in 1+1 dimensions in terms of a set of elementary geometrical units that represent its independent classical degrees of freedom. This is achieved by means of a binary encoding that is ergodic i[...]![]()
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Dauphin, Alexander ; Müller, Markus ; Martín-Delgado Alcántara, Miguel Ángel | American Physical Society | 2012-11-20In this work we consider a system of spinless fermions with nearest and next-to-nearest neighbor repulsive Hubbard interactions on a honeycomb lattice, and propose and analyze a realistic scheme for analog quantum simulation of this model with c[...]![]()
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Cats, P. ; Quelle, A. ; Viyuela, O. ; Martín-Delgado Alcántara, Miguel Ángel ; Morais Smith, C. | American Physical Society | 2018-03-12We find a series of topological phase transitions of increasing order, beyond the more standard second-order phase transition in a one-dimensional topological superconductor. The jumps in the order of the transitions depend on the range of the p[...]