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
27 papers · 2 filters
Implementing Semiclassical Szegedy Walks in Classical-Quantum Circuits for Homomorphic Encryption
Sergio A. Ortega, Pablo Fernández, Miguel A. Martin-Delgado
As cloud services continue to expand, the security of private data stored and processed in these environments has become paramount. This work delves into quantum homomorphic encryp…
Dynamically Enhanced Two-Photon Spectroscopy
Sebastian C. Carrasco, Sean Lourette, Ignacio Sola +1
A novel quantum control protocol utilizing two-photon processes with trigonometric pulse modulation is developed, enabling the intermediate state population's dynamic elimination (…
Asymptotic robustness of entanglement in noisy quantum networks and graph connectivity
Fernando Lledó, Carlos Palazuelos, Julio I. de Vicente
Quantum networks are promising venues for quantum information processing. This motivates the study of the entanglement properties of the particular multipartite quantum states that…
Complex-Phase Extensions of Szegedy Quantum Walk on Graphs
Sergio A. Ortega, Miguel A. Martin-Delgado
This work introduces a graph-phased Szegedy's quantum walk, which incorporates link phases and local arbitrary phase rotations (APR), unlocking new possibilities for quantum algori…
The product structure of MPS-under-permutations
Marta Florido-Llinàs, Álvaro M. Alhambra, Rahul Trivedi +3
Tensor network methods have proved to be highly effective in addressing a wide variety of physical scenarios, including those lacking an intrinsic one-dimensional geometry. In such…
Undecidability of the spectral gap in rotationally symmetric Hamiltonians
Laura Castilla-Castellano, Angelo Lucia
The problem of determining the existence of a spectral gap in a lattice quantum spin system was previously shown to be undecidable for one [J. Bausch et al., "Undecidability of the…
Role of energy-invariant assistants in energy extraction from quantum batteries
Paranjoy Chaki, Aparajita Bhattacharyya, Kornikar Sen +1
We investigate the role of energy-invariant assistants in energy extraction from quantum batteries. To this end, for energy extraction, we restrict ourselves to unitaries that join…
Intensity correlations in the Wigner representation
Mojdeh S. Najafabadi, Luis L. Sánchez-Soto, Kun. Huang +3
We derive a compact expression for the second-order correlation function of a quantum state in terms of its Wigner function, thereby establishing a direct link betwee…
Quantum Algorithm for Testing Graph Completeness
Sara Giordano, Miguel A. Martin-Delgado
Testing graph completeness is a critical problem in computer science and network theory. Leveraging quantum computation, we present an efficient algorithm using the Szegedy quantum…
Regular language quantum states
Marta Florido-Llinàs, Álvaro M. Alhambra, David Pérez-García +1
We introduce regular language states, a family of quantum many-body states. They are built from a special class of formal languages, called regular, which has been thoroughly studi…
Symmetries and singular behaviors with Bohmian trajectories
A. S. Sanz
Quantum mechanics is able to predict challenging behaviors even in the simplest physical scenarios. These behaviors are possible because of the important dynamical role that phase…
Optimizing measurement tradeoffs in multiparameter spatial superresolution
J. Řeháček, J. L. Romero, A. Z. Goldberg +2
The quantum Cramér-Rao bound for the joint estimation of the centroid and the separation between two incoherent point sources cannot be saturated. As such, the optimal measurements…
Relative-belief inference in quantum information theory
Y. S. Teo, S. U. Shringarpure, H. Jeong +6
We introduce the framework of Bayesian relative belief that directly evaluates whether or not the experimental data at hand supports a given hypothesis regarding a quantum system b…
Eluding Zeno effect via dephasing and detuning
Julio Cuadrado, Alfredo Luis
We analyze some variants of the Zeno effect in which the frequent observation of the population of an intermediate state does not prevent the transition of the system from the init…
Correlated and Critical Phenomena in Multipartite Quantum Non-Markovianity
Ignacio González, Ángel Rivas
We study non-Markovianity in the exact dynamics of two two-level atoms in a resonant cavity. We find a critical behavior in the form of a Markovian to non-Markovian transition at a…
Matrix-product unitaries: Beyond quantum cellular automata
Georgios Styliaris, Rahul Trivedi, David Pérez-García +1
Matrix-product unitaries (MPU) are 1D tensor networks describing time evolution and unitary symmetries of quantum systems, while their action on states by construction preserves th…
Positive and non-positive measurements in energy distillation from quantum batteries
Paranjoy Chaki, Aparajita Bhattacharyya, Kornikar Sen +1
We investigate energy distillation from quantum batteries within the framework of generalized quantum measurements, including both positive operator-valued measurements (POVMs) and…
Multipartite entanglement distribution in a topological photonic network
Juan Zurita, Andrés Agustí Casado, Charles E. Creffield +1
In the ongoing effort towards a scalable quantum computer, multiple technologies have been proposed. Some of them exploit topological materials to process quantum information. In t…
Quantum metrology using quantum combs and tensor network formalism
Stanislaw Kurdzialek, Piotr Dulian, Joanna Majsak +2
We develop an efficient algorithm for determining optimal adaptive quantum estimation protocols with arbitrary quantum control operations between subsequent uses of a probed channe…
Constants of motion characterizing continuous symmetry-broken phases
Ángel L. Corps, Jorge Dukelsky, Armando Relaño
We present a theory characterizing the phases emerging as a consequence of continuous symmetry-breaking in quantum and classical systems. In symmetry-breaking phases, dynamics is r…
Minimal-error quantum state discrimination versus robustness of entanglement:More indistinguishability with less entanglement
Debarupa Saha, Kornikar Sen, Chirag Srivastava +1
We relate the the distinguishability of quantum states with their robustness of the entanglement, where the robustness of any resource quantifies how tolerant it is to noise. In pa…
Conditional Independence of 1D Gibbs States with Applications to Efficient Learning
Álvaro M. Alhambra, Ángela Capel, Paul Gondolf +2
We show that spin chains in thermal equilibrium have a correlation structure in which individual regions are strongly correlated at most with their near vicinity. We quantify this…
Particle detectors under chronological hazard
Ana Alonso-Serrano, Erickson Tjoa, Luis J. Garay +1
We analyze how the presence of closed timelike curves (CTCs) characterizing a time machine can be discerned by placing a local particle detector in a region of spacetime which is c…
Simultaneous symmetry breaking in spontaneous Floquet states: temporal Floquet-Nambu-Goldstone modes, Floquet thermodynamics, and the time operator
Juan Ramón Muñoz de Nova, Fernando Sols
We study simultaneous symmetry breaking in spontaneous Floquet states, focusing on the specific case of an atomic condensate. We first describe the quantization of the Nambu-Goldst…