Publications (19)
Ab-initio calculation of all-optical time-resolved calorimetry of nanosized systems: Evidence of nanosecond-decoupling of electron and phonon temperatures
F. Banfi, F. Pressacco, B. Revaz +4
The thermal dynamics induced by ultrashort laser pulses in nanoscale systems, i.e. all-optical time-resolved nanocalorimetry is theoretically investigated from 300 to 1.5 K. We rep…
Noise in Bose Josephson junctions: Decoherence and phase relaxation
G. Ferrini, D. Spehner, A. Minguzzi +1
Squeezed states and macroscopic superpositions of coherent states have been predicted to be generated dynamically in Bose Josephson junctions. We solve exactly the quantum dynamics…
From the Bloch sphere to phase space representations with the Gottesman-Kitaev-Preskill encoding
L. GarcÃa-Ãlvarez, A. Ferraro, G. Ferrini
In this work, we study the Wigner phase-space representation of qubit states encoded in continuous variables (CV) by using the Gottesman-Kitaev-Preskill (GKP) mapping. We explore a…
Optimization of networks for measurement-based quantum computation
G. Ferrini, J. Roslund, F. Arzani +3
This work introduces optimization strategies to continuous variable measurement based quantum computation (MBQC) at different levels. We provide a recipe for mitigating the effects…
Thermo-mechanical behavior of surface acoustic waves in ordered arrays of nanodisks studied by near infrared pump-probe diffraction experiments
C. Giannetti, B. Revaz, F. Banfi +10
The ultrafast thermal and mechanical dynamics of a two-dimensional lattice of metallic nano-disks has been studied by near infrared pump-probe diffraction measurements, over a temp…
Ultrafast laser pulses to detect and generate fast thermo-mechanical transients in matter
C. Giannetti, F. Banfi, D. Nardi +2
The use of femtosecond laser pulses to impulsively excite thermal and mechanical transients in matter has led, in the last years, to the development of picosecond acoustics. Recent…
Pseudo-surface acoustic waves in hypersonic surface phononic crystals
D. Nardi, F. Banfi, C. Giannetti +3
We present a theoretical framework allowing to properly address the nature of surface-like eigenmodes in a hypersonic surface phononic crystal, a composite structure made of period…
Continuous-Variable Instantaneous Quantum Computing is hard to sample
T. Douce, D. Markham, E. Kashefi +5
Instantaneous quantum computing is a sub-universal quantum complexity class, whose circuits have proven to be hard to simulate classically in the Discrete-Variable (DV) realm. We e…
Emergent ultrafast phenomena in correlated oxides and heterostructures
M. Gandolfi, L. Celardo, F. Borgonovi +4
The possibility of investigating the dynamics of solids on timescales faster than the thermalization of the internal degrees of freedom has disclosed novel non-equilibrium phenomen…
Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates
S. Dal Conte, L. Vidmar, D. Golež +18
One of the pivotal questions in the physics of high-temperature superconductors is whether the low-energy dynamics of the charge carriers is mediated by bosons with a characteristi…
Competition between the Pseudogap and Superconducting States of BiSrCaYCuO Single Crystals Revealed by Ultrafast Broadband Optical Reflectivity
G. Coslovich, C. Giannetti, F. Cilento +8
Ultrafast broadband transient reflectivity experiments are performed to study the interplay between the non-equilibrium dynamics of the pseudogap and the superconducting phases in…
ExoClock Project IV: A homogeneous catalogue of 620 updated exoplanet ephemerides
A. Kokori, A. Tsiaras, G. Pantelidou +323
The ExoClock project is an open platform aiming to monitor exoplanets by integrating observations from space and ground based telescopes. This study presents an updated catalogue o…
First evidence of transient interactions between optical excitations and image potential states in graphite
M. Montagnese, S. Pagliara, S. Dal Conte +3
Here we report the experimental evidence of the interactions between the excitations of the optical transition and the image potential states (IPS) of highly oriented p…
Evidence of a photoinduced non-thermal superconducting-to-normal-state phase transition in overdoped BiSrCaYCuO
G. Coslovich, C. Giannetti, F. Cilento +9
Here we report extensive ultrafast time-resolved reflectivity experiments on overdoped BiSrCaYCuO single crystals (T=78 K) aimed to clari…
Symplectic approach to the amplification process in a nonlinear fiber
G. Ferrini, I. Fsaifes, T. Labidi +3
We analyze the amplification processes occurring in a nonlinear fiber, either driven with one or two pumps. After determining the solution for the signal and idler fields resulting…
Evidence of diffusive fractal aggregation of TiO2 nanoparticles by femtosecond laser ablation at ambient conditions
G. L. Celardo, D. Archetti, G. Ferrini +3
The specific mechanisms which leads to the formation of fractal nanostructures by pulsed laser deposition remain elusive despite intense research efforts, motivated mainly by the t…
Reconfigurable Optical Quantum Networks Using Multimode Quantum Frequency Combs and Pulse Shaping
Y. Cai, J. Roslund, G. Ferrini +4
Multimode entanglement is quintessential for the design and fabrication of quantum networks, which play a central role in quantum information processing and quantum metrology. Howe…
Number squeezing, quantum fluctuations and oscillations in mesoscopic Bose Josephson junctions
G. Ferrini, A. Minguzzi, F. W. J. Hekking
Starting from a quantum two-mode Bose-Hubbard Hamiltonian we determine the ground state properties, momentum distribution and dynamical evolution for a Bose Josephson junction real…
Combined Scanning Electron Microscope and Micro-InfraRed measurements on Interplanetary Dust Particles
A. Aronica, A. Rotundi, G. Ferrini +3
Laboratory characterization of Interplanetary Dust Particles (IDPs) collected in the lower stratosphere represents a concrete analysis of cosmic dust properties which played a fund…