Javier Cerrillo

Fast arbitrary qutrit gates for NV centers in the low-field regime

Alberto López-García, Marcel Morillas-Rozas, Alberto Mayorgas, Javier Cerrillo

Abstract The ground state of the negatively charged NV center forms a spin–1 manifold providing a versatile platform for sensing and information processing. Here we present a scheme for implementing fast arbitrary qutrit gates in the low–field regime using monochromatic microwave pulses …

es (code pays fourni par la source)

The transfer tensor method: An analytical study case

Marcel Morillas-Rozas, Alberto López-García, G. Rivero, Jianshu Cao et autres

The transfer tensor method (TTM) is a versatile tool for analyzing and propagating general open quantum systems. It captures in a compact manner all memory effects in a non-Markovian system through a straightforward transformation of a set of dynamical maps. Transfer tensors …

co, es, us (code pays fourni par la source)

Data for "Models of liquid samples confinement for nanoscale NMR"

Santiago Oviedo-Casado, D. Cohen, Allan Josué González-Villalobos, Javier Cerrillo

This dataset includes files and data to reproduce the figures of "Models of liquid samples confinement for nanoscale NMR". Included are the Mathematica notebook to generate correlation functions for the evaporation walls model, and the python files to generate correlation functions for …

es, de, cr (code pays fourni par la source)

Data for "Models of liquid samples confinement for nanoscale NMR"

Santiago Oviedo-Casado, D. Cohen, Allan Josué González-Villalobos, Javier Cerrillo

This dataset includes files and data to reproduce the figures of "Models of liquid samples confinement for nanoscale NMR". Included are the Mathematica notebook to generate correlation functions for the evaporation walls model, and the python files to generate correlation functions for …

es, de, cr (code pays fourni par la source)

Fast Generation of Metrologically Relevant Fock State Mixtures

G. Rivero, Marcel Morillas-Rozas, Alberto López-García, Javier Cerrillo

We propose a fast laser pulse sequence for the generation of non-thermal Fock state mixtures of the motion of a trapped ion, targeted at displacement metrology beyond the standard quantum limit. Using a polaron-frame description of the ion-laser interaction, we identify a …

Electron Shuttle Waiting Times for Electric Field Sensing

Alberto Mayorgas, Alberto López-García, Enamul Haque, Javier Cerrillo

We explore the use of waiting-time statistics in a quantum electron shuttle for electric-field sensing. Electron shuttles convert nanomechanical motion into charge transport, showing a noise-broadened crossover between stochastic tunneling and mechanically assisted charge transfer. This allows investigation of how transport fluctuations …

Electron Shuttle Waiting Times for Electric Field Sensing

Alberto Mayorgas, Alberto López-García, Enamul Haque, Javier Cerrillo

We explore the use of waiting-time statistics in a quantum electron shuttle for electric-field sensing. Electron shuttles convert nanomechanical motion into charge transport, showing a noise-broadened crossover between stochastic tunneling and mechanically assisted charge transfer. This allows investigation of how transport fluctuations …

es (code pays fourni par la source)

Fast Generation of Metrologically Relevant Fock State Mixtures

G. Rivero, Marcel Morillas-Rozas, Alberto López-García, Javier Cerrillo

We propose a fast laser pulse sequence for the generation of non-thermal Fock state mixtures of the motion of a trapped ion, targeted at displacement metrology beyond the standard quantum limit. Using a polaron-frame description of the ion-laser interaction, we identify a …

es (code pays fourni par la source)

Models of liquid-sample confinement for nanoscale NMR

Anonymous, D. Cohen, Allan Josué González-Villalobos, Javier Cerrillo

es, il, cr (code pays fourni par la source)

Critical Sensing with Autonomous Devices: The Self-Oscillation Threshold of a Frequency-Locked NV-Centre Magnetometer

Joan Toledo Aguilera, G. Rivero, Marcel Morillas-Rozas, Javier Cerrillo

Feedback locking of a probe frequency to a spin resonance is the standard operating mode of precision quantum sensors. Here we deliberately operate such a lock outside its stable regime: a continuous-wave nitrogen-vacancy (NV) ensemble magnetometer, frequency-modulation (FM) locked to one flank …

Reversible photo-switching optical functionality in two-dimensional mixed-halide hybrid perovskites

Enamul Haque, Wenxin Mao, Javier Cerrillo

Ion migration in halide perovskites is often associated with defects, irreversible processes, and structural instability, making them largely impractical for photo-switching applications. Here, we demonstrate a physical mechanism for reversible, defect-free light-induced halide-ion swapping in two-dimensional mixed-halide perovskites. We find that the …

Dark Polaron Theory for High Intensity Laser Cooling

Marcel Morillas-Rozas, Alberto López-García, Enamul Haque, G. Rivero et autres

Conventional laser control schemes for cooling and gate operation of trapped ions are limited to the regime of weak laser intensities and small Lamb-Dicke parameters. To overcome this limitation, we present the concept of dark polarons: spatially extended states of pseudospin polarization …