449 citations · 1.5k across the 37 of their papers we have counts for
37 papers
Shaping frequency-tunable single photons for quantum networking in waveguide QED
Álvaro Pernas, Ricardo Puebla
The exchange of quantum information among nodes in a quantum network is one of the main challenges in modern technologies. Superconducting waveguide QED networks hold great potenti…
Comment on "Properties and dynamics of generalized squeezed states"
Rubén Gordillo-Hachuel, Ricardo Puebla
A recent article [S. Ashhab and M. Ayyash, New J. Phys. 27, 054104 (2025)] has reported unexpected oscillatory dynamics in generalized squeezed states of order higher than two as t…
Characterization of the photon emission statistics in nitrogen-vacancy centers
Iván Panadero, Hilario Espinós, Lucas Tsunaki +7
We model and experimentally demonstrate the full time-dependent counting statistics of photons emitted by a single nitrogen-vacancy (NV) center in diamond under non-resonant laser…
Enhancing polarization transfer from nitrogen-vacancy centers in diamond to external nuclear spins via dangling bond mediators
H. Espinós, C. Munuera-Javaloy, I. Panadero +4
The use of nitrogen-vacancy centers in diamond as a non-invasive platform for hyperpolarizing nuclear spins in molecular samples is a promising area of research with the potential…
Neural networks for Bayesian quantum many-body magnetometry
Yue Ban, Jorge Casanova, Ricardo Puebla
Entangled quantum many-body systems can be used as sensors that enable the estimation of parameters with a precision larger than that achievable with ensembles of individual quantu…
Improving quantum state transfer: Correcting non-Markovian and distortion effects
Guillermo F. Peñas, Ricardo Puebla, Juan José García-Ripoll
Quantum state transfer is a key operation for quantum information processing. The original pitch-and-catch protocols rely on flying qubits or single photons with engineered wavepac…
Multi-squeezed state generation and universal bosonic control via a driven quantum Rabi model
Peter McConnell, Alessandro Ferraro, Ricardo Puebla
Universal control over a bosonic degree of freedom is key in the quest for quantum-based technologies. Such universal control requires however the ability to perform demanding non-…
Linear-response approach to critical quantum many-body systems
Ricardo Puebla, Alessio Belenchia, Giulio Gasbarri +2
The characterization of quantum critical phenomena is pivotal for the understanding and harnessing of quantum many-body physics. However, their complexity makes the inference of su…
Exponential precision by reaching a quantum critical point
Louis Garbe, Obinna Abah, Simone Felicetti +1
Quantum metrology shows that by exploiting nonclassical resources it is possible to overcome the fundamental limit of precision found for classical parameter-estimation protocols.…
Detection of Molecular Transitions with Nitrogen-Vacancy Centers and Electron-Spin Labels
C. Munuera-Javaloy, R. Puebla, B. D'Anjou +2
We present a protocol that detects molecular conformational changes with two nitroxide electron-spin labels and a nitrogen-vacancy (NV) center in diamond. More specifically, we dem…
Critical Quantum Metrology with Fully-Connected Models: From Heisenberg to Kibble-Zurek Scaling
Louis Garbe, Obinna Abah, Simone Felicetti +1
Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg…
Universal deterministic quantum operations in microwave quantum links
Guillermo F. Peñas, Ricardo Puebla, Tomás Ramos +2
We propose a realistic setup, inspired by already existing experiments, within which we develop a general formalism for the implementation of distributed quantum gates. Mediated by…
Open Quantum Rotors: Connecting Correlations and Physical Currents
Ricardo Puebla, Alberto Imparato, Alessio Belenchia +1
We consider a finite one-dimensional chain of quantum rotors interacting with a set of thermal baths at different temperatures. When the interaction between the rotors is made chir…
Harnessing non-adiabatic excitations promoted by a quantum critical point
Obinna Abah, Gabriele De Chiara, Mauro Paternostro +1
Crossing a quantum critical point in finite time challenges the adiabatic condition due to the closing of the energy gap, which ultimately results in the formation of excitations.…
Dynamical decoupling methods in nanoscale NMR
C. Munuera-Javaloy, R. Puebla, J. Casanova
Nuclear magnetic resonance (NMR) schemes can be applied to micron-, and nanometer-sized samples by the aid of quantum sensors such as nitrogen-vacancy (NV) color centers in diamond…
Work statistics and symmetry breaking in an excited state quantum phase transition
Zakaria Mzaouali, Ricardo Puebla, John Goold +2
We examine how the presence of an excited state quantum phase transition manifests in the dynamics of a many-body system subject to a sudden quench. Focusing on the Lipkin-Meshkov-…
Finite-component dynamical quantum phase transitions
Ricardo Puebla
Phase transitions have recently been formulated in the time domain of quantum many-body systems, a phenomenon dubbed dynamical quantum phase transitions (DQPTs), whose phenomenolog…
Ultrafast critical ground state preparation via bang-bang protocols
Luca Innocenti, Gabriele De Chiara, Mauro Paternostro +1
The fast and faithful preparation of the ground state of quantum systems is a challenging task but crucial for several applications in the realm of quantum-based technologies. Deco…
Kibble-Zurek scaling in quantum speed limits for shortcuts to adiabaticity
Ricardo Puebla, Sebastian Deffner, Steve Campbell
Geometric quantum speed limits quantify the trade-off between the rate with which quantum states can change and the resources that are expended during the evolution. Counterdiabati…
Measurement-based cooling of a nonlinear mechanical resonator
Ricardo Puebla, Obinna Abah, Mauro Paternostro
We propose two measurement-based schemes to cool a nonlinear mechanical resonator down to energies close to that of its ground state. The protocols rely on projective measurements…
Quantum state engineering by shortcuts-to-adiabaticity in interacting spin-boson systems
Obinna Abah, Ricardo Puebla, Mauro Paternostro
We present a fast and robust framework to prepare non-classical states of a bosonic mode exploiting a coherent exchange of excitations with a two-level system ruled by a Jaynes-Cum…
Universal anti-Kibble-Zurek scaling in fully-connected systems
Ricardo Puebla, Andrea Smirne, Susana F. Huelga +1
We investigate the quench dynamics of an open quantum system involving a quantum phase transition. In the isolated case, the quench dynamics involving the phase transition exhibits…
Quantum Kibble-Zurek physics in long-range transverse-field Ising models
Ricardo Puebla, Oliver Marty, Martin B. Plenio
We analyze the quantum phase transitions taking place in a one-dimensional transverse field Ising model with long-range couplings that decay algebraically with distance. We are int…
Energetic cost of quantum control protocols
Obinna Abah, Ricardo Puebla, Anthony Kiely +3
We quantitatively assess the energetic cost of several well-known control protocols that achieve a finite time adiabatic dynamics, namely counterdiabatic and local counterdiabatic…