7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Complutense de MadridES198 papers
- Universidad Autónoma de MadridES177 papers
- Centre National de la Recherche ScientifiqueFR103 papers
- IMDEA MaterialsES100 papers
- Universidad Carlos III de MadridES86 papers
- Universidad Rey Juan CarlosES81 papers
- Consejo Superior de Investigaciones CientíficasES61 papers
- Institute of Mathematical SciencesIN57 papers
- Universitat de ValènciaES45 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR39 papers
- IMDEA Software InstituteES38 papers
- Université Paris-SaclayFR34 papers
88 papers · 1 filter
Error Resilience of Fracton Codes and Near Saturation of Code-Capacity Threshold in Three Dimensions
Giovanni Canossa, Lode Pollet, Miguel A. Martin-Delgado +2
Fracton codes have been intensively studied as novel topological states of matter, yet their fault-tolerant properties remain largely unexplored. Here, we investigate the optimal t…
From Divergent Series to Geometry: Resurgence of the Quantum Metric
Marcos J. Hernández, Bogar Díaz, J. David Vergara
In this work, we analyze perturbative expansions of the quantum metric tensor (QMT) in anharmonic oscillators, focusing on quartic, sextic, and -dimensional models. Using high-o…
Phenomenological Noise Models and Optimal Thresholds of the 3D Toric Code
Ji-Ze Xu, Yin Zhong, Miguel A. Martin-Delgado +2
Three-dimensional (3D) topological codes offer the advantage of supporting fault-tolerant implementations of non-Clifford gates, yet their performance against realistic noise remai…
Hybrid Reward-Driven Reinforcement Learning for Efficient Quantum Circuit Synthesis
Sara Giordano, Kornikar Sen, Miguel A. Martin-Delgado
A reinforcement learning (RL) framework is introduced for the efficient synthesis of quantum circuits that generate specified target quantum states from a fixed initial state, addr…
Roadmap on Quantum Thermodynamics
Steve Campbell, Irene D'Amico, Mario A. Ciampini +66
The last two decades has seen quantum thermodynamics become a well established field of research in its own right. In that time, it has demonstrated a remarkably broad applicabilit…
Time-dependent quantum geometric tensor and some applications
Bogar Díaz, Diego Gonzalez, Marcos J. Hernández +1
We define a time-dependent extension of the quantum geometric tensor to describe the geometry of the time-parameter space for a quantum state, by considering small variations in bo…
Quantum codes do not fix isotropic errors
Jesús García López de Lacalle, Luis Miguel Pozo Coronado, André L. Fonseca de Oliveira
In this work we prove that quantum error correcting codes do not fix isotropic errors, even assuming that their correction circuits do not introduce new errors. We say that a quant…
The simplest 2D quantum walk detects chaoticity
C. Alonso-Lobo, Gabriel G. Carlo, F. Borondo
Quantum walks are at present an active field of study in mathematics, with important applications in quantum information and statistical physics. In this paper, we determine the in…
Efficient Reconciliation of Continuous Variable Quantum Key Distribution with Multiplicatively Repeated Non-Binary LDPC Codes
Jesus Martinez-Mateo, David Elkouss
Continuous variable quantum key distribution bears the promise of simple quantum key distribution directly compatible with commercial off the shelf equipment. However, for a long t…
Variance of the sum of independent quantum computing errors
Jesús Lacalle, Luis Miguel Pozo Coronado
The sum of quantum computing errors is the key element both for the estimation and control of errors in quantum computing and for its statistical study. In this article we analyze…
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…
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…
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…
Randomized SearchRank: A Semiclassical Approach to a Quantum Search Engine
Sergio A. Ortega, Miguel A. Martin-Delgado
The quantum SearchRank algorithm is a promising tool for a future quantum search engine based on PageRank quantization. However, this algorithm loses its functionality when the $N/…
Exotic Symmetry Breaking Properties of Self-Dual Fracton Spin Models
Giovanni Canossa, Lode Pollet, Miguel A. Martin-Delgado +2
Fracton codes host unconventional topological states of matter and are promising for fault-tolerant quantum computation due to their large coding space and strong resilience agains…
Simplifying the simulation of local Hamiltonian dynamics
Ayaka Usui, Anna Sanpera, María García Díaz
Local Hamiltonians, , describe non-trivial -body interactions in quantum many-body systems. Here, we address the dynamical simulatability of a -local Hamiltonian by a si…
SQUWALS: A Szegedy QUantum WALks Simulator
Sergio A. Ortega, Miguel A. Martin-Delgado
Szegedy's quantum walk is an algorithm for quantizing a general Markov chain. It has plenty of applications such as many variants of optimizations. In order to check its properties…
Discrete-time Semiclassical Szegedy Quantum Walks
Sergio A. Ortega, Miguel A. Martin-Delgado
Quantum walks are promising tools based on classical random walks, with plenty of applications such as many variants of optimization. Here we introduce the semiclassical walks in d…
A didactic approach to quantum machine learning with a single qubit
Elena Peña Tapia, Giannicola Scarpa, Alejandro Pozas-Kerstjens
This paper presents, via an explicit example with a real-world dataset, a hands-on introduction to the field of quantum machine learning (QML). We focus on the case of learning wit…
Long-Range QKD without Trusted Nodes is Not Possible with Current Technology
Bruno Huttner, Romain Alléaume, Eleni Diamanti +11
A recently published patent (https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2590064) has claimed the development of a novel quantum key distribution protocol purporting to…
Generalized Quantum PageRank Algorithm with Arbitrary Phase Rotations
Sergio A. Ortega, Miguel A. Martin-Delgado
The quantization of the PageRank algorithm is a promising tool for a future quantum internet. Here we present a modification of the quantum PageRank introducing arbitrary phase rot…
AutoQML: Automatic Generation and Training of Robust Quantum-Inspired Classifiers by Using Genetic Algorithms on Grayscale Images
Sergio Altares-López, Juan José García-Ripoll, Angela Ribeiro
We propose a new hybrid system for automatically generating and training quantum-inspired classifiers on grayscale images by using multiobjective genetic algorithms. We define a dy…
Quantum Metropolis Solver: A Quantum Walks Approach to Optimization Problems
Roberto Campos, Pablo A M Casares, M A Martin-Delgado
The efficient resolution of optimization problems is one of the key issues in today's industry. This task relies mainly on classical algorithms that present scalability problems an…
Simulating key properties of lithium-ion batteries with a fault-tolerant quantum computer
Alain Delgado, Pablo A. M. Casares, Roberto dos Reis +9
There is a pressing need to develop new rechargeable battery technologies that can offer higher energy storage, faster charging, and lower costs. Despite the success of existing me…