activity
20222026
most citedRadiative loss of coherence in free electrons: a long-range quantum phenomenon

9 citations · 23 across the 9 of their papers we have counts for

collaborators

10 papers

quant-ph2026

Electron decoherence in cylindrical holes and circular apertures

Cruz I. Velasco, F. Javier Garc\'ıa de Abajo

The coherence of free electrons sets fundamental limits on the resolution and contrast of phase-sensitive electron microscopy because coherence is lost whenever the electron leaves…

cond-mat.mes-hall2026

Unity-order coupling between free electrons and multiphoton waveguided Fock states

L. Prelat, S. Abdullah, C. I. Velasco +1

Electron beams enable highly localized near-field excitation of waveguided optical modes, yet their coupling is typically limited by short interaction times along straight-line tra…

cond-mat.mtrl-sci2026

Free-electron decoherence: Theory and applications

Cruz I. Velasco, Valerio Di Giulio, F. Javier García de Abajo

Electron microscopy relies on the spatial coherence of electron beams to generate atomic-scale images using interference and diffraction, which can be degraded by inelastic scatter…

quant-ph2025

Quantum sensing and metrology with free electrons

Cruz I. Velasco, F. Javier García de Abajo

The quantum properties of matter and radiation can be leveraged to surpass classical limits of sensing and detection. Quantum optics does so by creating and measuring nonclassical…

cond-mat.mes-hall2025★ 1 cited

Zeptosecond free-electron compression through temporal lensing

Xin Jin, Cruz I. Velasco, F. Javier García de Abajo

The pursuit of ever-shorter time scales is a frontier in modern physics, exemplified by the synthesis of attosecond light pulses -- an achievement made possible by coherently super…

cond-mat.mtrl-sci2025★ 1 cited

Spectrometer-Free Electron Spectromicroscopy

F. Javier García de Abajo, Cruz I. Velasco

We introduce an approach for performing spectrally resolved electron microscopy without the need for an electron spectrometer. The method involves an electron beam prepared as a co…

cond-mat.mes-hall2025

Roadmap for Quantum Nanophotonics with Free Electrons

F. Javier García de Abajo, Albert Polman, Cruz I. Velasco +44

Over the past century, continuous advancements in electron microscopy have enabled the synthesis, control, and characterization of high-quality free-electron beams. These probes ca…

quant-ph2024★ 7 cited

Free-Space Optical Modulation of Free Electrons in the Continuous-Wave Regime

Cruz I. Velasco, F. Javier García de Abajo

The coherent interaction between free electrons and optical fields can produce free-electron compression and push the temporal resolution of ultrafast electron microscopy to the at…

quant-ph2023★ 9 cited

Radiative loss of coherence in free electrons: a long-range quantum phenomenon

Cruz I. Velasco, Valerio Di Giulio, F. Javier García de Abajo

Quantum physics rules the dynamics of small objects as they interact over microscopic length scales. Nevertheless, quantum correlations involving macroscopic distances can be obser…

quant-ph2022★ 5 cited

Photon generation and entanglement in a double superconducting cavity

Cruz I. Velasco, Nicolás F. Del Grosso, Fernando C. Lombardo +2

We study the dynamical Casimir effect in a double superconducting cavity in a circuit quantum electrodynamics architecture. Parameters in the quantum circuit are chosen in such a w…