8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- L. Sánchez‐Soto128 · h 37
- M. Martin-Delgado126 · h 47
- F. Llanes-Estrada122 · h 28
- P. Pérez-González2 profiles120 · h 71
- V. Martín-Mayor112 · h 41
- J. Caballero3 profiles103 · h 36
- D. Montes2 profiles100 · h 47
- A. Dobado96 · h 32
- A. L. Maroto79 · h 32
- F. Domínguez‐Adame79 · h 28
- J. Gallego73 · h 30
- L. A. Fernández70 · h 28
- Instituto de Astrofísica de CanariasES749 papers
- Centre National de la Recherche ScientifiqueFR727 papers
- Consejo Superior de Investigaciones CientíficasES669 papers
- Universidad de La LagunaES660 papers
- Universidad Autónoma de MadridES549 papers
- Instituto de Astrofísica de AndalucíaES514 papers
- National Institute for AstrophysicsIT368 papers
- Centro de AstrobiologíaES366 papers
- Universidad Carlos III de MadridES354 papers
- University of PaduaIT351 papers
- Institute of Mathematical SciencesIN350 papers
- Institute of Space SciencesES347 papers
21 papers · 2 filters
Quantum quench influenced by an excited-state phase transition
P. Perez-Fernandez, P. Cejnar, J. M. Arias +3
We analyze excited-state quantum phase transitions (ESQPTs) in three schematic (integrable and nonintegrable) models describing a single-mode bosonic field coupled to a collection…
Orbital angular momentum in phase space
I. Rigas, L. L. Sanchez-Soto, A. B. Klimov +2
A comprehensive theory of the Weyl-Wigner formalism for the canonical pair angle-angular momentum is presented. Special attention is paid to the problems linked to rotational perio…
Quantum Bell Inequalities from Macroscopic Locality
Tzyh Haur Yang, Miguel Navascués, Lana Sheridan +1
We propose a method to generate analytical quantum Bell inequalities based on the principle of Macroscopic Locality. By imposing locality over binary processings of virtual macrosc…
Simulating quantum-optical phenomena with cold atoms in optical lattices
Carlos Navarrete-Benlloch, Inés de Vega, Diego Porras +1
We propose a scheme involving cold atoms trapped in optical lattices to observe different phenomena traditionally linked to quantum-optical systems. The basic idea consists of conn…
Activation of Non-Local Quantum Resources
Miguel Navascues, Tamas Vertesi
We find two two-qubit states such that any number of copies of one state or the other cannot violate the CHSH Bell inequality. However, their tensor product can produce a CHSH viol…
Sequential Strong Measurements and Heat Vision
Miguel Navascues, David Perez-Garcia
We study scenarios where a finite set of non-demolition von-Neumann measurements are available. We note that, in some situations, repeated application of such measurements allows e…
The U(1) Lattice Gauge Theory Universally Connects All Classical Models with Continuous Variables, Including Background Gravity
Ying Xu, Gemma De las Cuevas, Wolfgang Dür +2
We show that the partition function of many classical models with continuous degrees of freedom, e.g. abelian lattice gauge theories and statistical mechanical models, can be writt…
Quantum entanglement produced in the formation of a black hole
E. Martin-Martinez, L. J. Garay, J. Leon
A field in the vacuum state, which is in principle separable, can evolve to an entangled state in a dynamical gravitational collapse. We will study, quantify, and discuss the origi…
Graph states in phase space
A. B. Klimov, C. Munoz, L. L. Sanchez-Soto
The phase space for a system of qubits is a discrete grid of points, whose axes are labeled in terms of the elements of the finite field $\Gal{2^n}$ to end…
A new exactly solvable quantum model in N dimensions
Angel Ballesteros, Alberto Enciso, Francisco J. Herranz +2
An N-dimensional position-dependent mass Hamiltonian (depending on a parameter λ) formed by a curved kinetic term and an intrinsic oscillator potential is considered. It is shown t…
Unveiling quantum entanglement degradation near a Schwarzschild black hole
E. Martin-Martinez, L. J. Garay, J. Leon
We analyze the entanglement degradation provoked by the Hawking effect in a bipartite system Alice-Rob when Rob is in the proximities of a Schwarzschild black hole while Alice is f…
The quantum vacuum at the foundations of classical electrodynamics
G. Leuchs, A. S. Villar, L. L. Sanchez-Soto
In the classical theory of electromagnetism, the permittivity and the permeability of free space are constants whose magnitudes do not seem to possess any deeper physical meaning.…
Quantum degrees of polarization
G. Bjork, J. Soderholm, L. L. Sanchez-Soto +4
We discuss different proposals for the degree of polarization of quantum fields. The simplest approach, namely making a direct analogy with the classical description via the Stokes…
Tricolored Lattice Gauge Theory with Randomness: Fault-Tolerance in Topological Color Codes
Ruben S. Andrist, Helmut G. Katzgraber, H. Bombin +1
We compute the error threshold of color codes, a class of topological quantum codes that allow a direct implementation of quantum Clifford gates, when both qubit and measurement er…
Extracting dynamical equations from experimental data is NP-hard
Toby S. Cubitt, Jens Eisert, Michael M. Wolf
The behavior of any physical system is governed by its underlying dynamical equations. Much of physics is concerned with discovering these dynamical equations and understanding the…
A Hybrid Long-Distance Entanglement Distribution Protocol
Jonatan B. Brask, Ioannes Rigas, Eugene S. Polzik +2
We propose a hybrid (continuous-discrete variable) quantum repeater protocol for distribution of entanglement over long distances. Starting from entangled states created by means o…
Zero-error channel capacity and simulation assisted by non-local correlations
Toby S. Cubitt, Debbie Leung, William Matthews +1
Shannon's theory of zero-error communication is re-examined in the broader setting of using one classical channel to simulate another exactly, and in the presence of various resour…
Spin Filtering and Entanglement Swapping through Coherent Evolution of a Single Quantum Dot
Jose Garcia Coello, Abolfazl Bayat, Sougato Bose +2
We exploit the non-dissipative dynamics of a pair of electrons in a large square quantum dot to perform singlet-triplet spin measurement through a single charge detection and show…
Localization of phonons in ion traps with controlled quantum disorder
A. Bermudez, M. A. Martin-Delgado, D. Porras
We show that the vibrations of a chain of trapped ions offer an interesting route to explore the physics of disordered quantum systems. By preparing the internal state of the ions…
Precision quantum metrology and nonclassicality in linear and nonlinear detection schemes
Ángel Rivas, Alfredo Luis
We examine whether metrological resolution beyond coherent states is a nonclassical effect. We show that this is true for linear detection schemes but false for nonlinear schemes,…
PEPS as ground states: degeneracy and topology
Norbert Schuch, Ignacio Cirac, David Perez-Garcia
We introduce a framework for characterizing Matrix Product States (MPS) and Projected Entangled Pair States (PEPS) in terms of symmetries. This allows us to understand how PEPS app…