activity
20232026
most citedCircuit Complexity through phase transitions: consequences in quantum state preparation

10 citations · 32 across the 9 of their papers we have counts for

collaborators

9 papers

quant-ph2026

Polariton-polariton coherent coupling in a molecular spin-superconductor chip

Carolina del Río, Marcos Rubín-Osanz, David Rodriguez +12

The ability to establish coherent communication channels is key for scaling up quantum devices. Here, we engineer interactions between distant polaritons, hybrid spin-photon excita…

quant-ph2025

Optimizing magnetic coupling in lumped element superconducting resonators for molecular spin qubits

Marcos Rubín-Osanz, David Rodriguez, Ignacio Gimeno +18

We engineer lumped-element superconducting resonators that maximize magnetic coupling to molecular spin qubits, achieving record single-spin couplings up to kHz and collectiv…

quant-ph2025

Accelerating Quantum Monte Carlo Calculations with Set-Equivariant Architectures and Transfer Learning

Manuel Gallego, Sebastián Roca-Jerat, David Zueco +1

Machine-learning (ML) ansätze have greatly expanded the accuracy and reach of variational quantum Monte Carlo (QMC) calculations, in particular when exploring the manifold quantum…

physics.comp-ph2025★ 1 cited

A genetic algorithm to generate maximally orthogonal frames in complex space

Sebastián Roca-Jerat, Juan Román-Roche

A frame is a generalization of a basis of a vector space to a redundant overspanning set whose vectors are linearly dependent. Frames find applications in signal processing and qua…

quant-ph2024★ 4 cited

First- and second-order quantum phase transitions in the long-range unfrustrated antiferromagnetic Ising chain

Víctor Herráiz-López, Sebastián Roca-Jerat, Manuel Gallego +4

We study the ground-state phase diagram of an unfrustrated antiferromagnetic Ising chain with longitudinal and transverse fields in the full range of interactions: from all-to-all…

quant-ph2024★ 7 cited

Transformer Wave Function for Quantum Long-Range models

Sebastián Roca-Jerat, Manuel Gallego, Fernando Luis +2

We employ a neural-network architecture based on the Vision Transformer (ViT) architecture to find the ground states of quantum long-range models, specifically the transverse-field…

quant-ph2024

Waveguide quantum electrodynamics at the onset of spin-spin correlations

Sebastián Roca-Jerat, Marcos Rubín-Osanz, Mark D. Jenkins +4

We explore the competition between light-mediated and intrinsic matter-matter interactions in waveguide quantum electrodynamics. For this, we couple a superconducting transmission…

quant-ph2023★ 10 cited

Qudit Machine Learning

Sebastián Roca-Jerat, Juan Román-Roche, David Zueco

We present a comprehensive investigation into the learning capabilities of a simple d-level system (qudit). Our study is specialized for classification tasks using real-world datab…

quant-ph2023★ 10 cited

Circuit Complexity through phase transitions: consequences in quantum state preparation

Sebastián Roca-Jerat, Teresa Sancho-Lorente, Juan Román-Roche +1

In this paper, we analyze the circuit complexity for preparing ground states of quantum many-body systems. In particular, how this complexity grows as the ground state approaches a…