activity
20202025
most citedPhoton Condensation and Enhanced Magnetism in Cavity QED

44 citations · 83 across the 5 of their papers we have counts for

collaborators

5 papers

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-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-ph2021

Broad-band spectroscopy of a vanadyl porphyrin: a model electronuclear spin qudit

I. Gimeno, A. Urtizberea, J. Román-Roche +5

We explore how to encode more than a qubit in vanadyl porphyrin molecules hosting a electronic spin 1/2 coupled to a nuclear spin 7/2. The spin Hamiltonian and its parameters, as w…

quant-ph2020★ 44 cited

Photon Condensation and Enhanced Magnetism in Cavity QED

Juan Román-Roche, Fernando Luis, David Zueco

A system of magnetic molecules coupled to microwave cavities ( resonators) undergoes the equilibrium superradiant phase transition. The transition is experimentally observable.…

quant-ph2020★ 28 cited

Bound states in ultrastrong waveguide QED

Juan Román-Roche, Eduardo Sánchez-Burillo, David Zueco

We discuss the properties of bound states in finite-bandwidth waveguide QED beyond the Rotating Wave Approximation or excitation number conserving light-matter coupling models. The…