Results 11 to 20 of about 328 (204)

Macroscopic quantumness of optically conditioned mechanical systems

New Journal of Physics, 2020
We address the macroscopic quantumness of the state of mechanical systems subjected to conditional protocols devised for state engineering in cavity optomechanics. We use a measure of macroscopicity based on phase-space methods.
Hannah McAleese, Mauro Paternostro
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Complex Attosecond Waveform Synthesis at FEL FERMI

Applied Sciences, 2021
Free-electron lasers (FELs) can produce radiation in the short wavelength range extending from the extreme ultraviolet (XUV) to the X-rays with a few to a few tens of femtoseconds pulse duration. These facilities have enabled significant breakthroughs in
Praveen Kumar Maroju, Cesare Grazioli, Michele Di Fraia, Matteo Moioli, Dominik Ertel, Hamed Ahmadi, Oksana Plekan, Paola Finetti, Enrico Allaria, Luca Giannessi, Giovanni De Ninno, Alberto A. Lutman, Richard J. Squibb, Raimund Feifel, Paolo Carpeggiani, Maurizio Reduzzi, Tommaso Mazza, Michael Meyer, Samuel Bengtsson, Neven Ibrakovic, Emma Rose Simpson, Johan Mauritsson, Tamás Csizmadia, Mathieu Dumergue, Sergei Kühn, Harshitha Nandiga Gopalakrishnan, Daehyun You, Kiyoshi Ueda, Marie Labeye, Jens Egebjerg Bækhøj, Kenneth J. Schafer, Elena V. Gryzlova, Alexei N. Grum-Grzhimailo, Kevin C. Prince, Carlo Callegari, Giuseppe Sansone   +35 more
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Estimating the Level of Uncertainty in Electron-Impact Excitation and Photoionisation Rates of Low-Ionised Stages of Ni Ions

Galaxies, 2018
Ni iv lines can be used as diagnostics for temperature and density for various astrophysical objects. In addition, ionization of Ni2+ is one of the causes of the opacity in the interstellar medium.
Luis Fernández-Menchero, Catherine A. Ramsbottom, Connor P. Ballance   +2 more
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Advances in Atomic, Molecular, and Optical Physics

, 2013
F. Calegari, F. Ferrari, M. Lucchini, M. Negro, C. Vozzi, S. Stagira, G. Sansone, M. Nisoli   +7 more
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Thermodynamics of trajectories and local fluctuation theorems for harmonic quantum networks

New Journal of Physics, 2015
We present a general method to undertake a thorough analysis of the thermodynamics of the quantum jump trajectories followed by an arbitrary quantum harmonic network undergoing linear and bilinear dynamics.
Simon Pigeon, Lorenzo Fusco, André Xuereb, Gabriele De Chiara, Mauro Paternostro   +4 more
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Towards the Provision of Accurate Atomic Data for Neutral Iron

Galaxies, 2018
The rich emission and absorption line spectra of Fe I may be used to extract crucial information on astrophysical plasmas, such as stellar metallicities.
Andrew Conroy, Catherine Ramsbottom, Connor Ballance, Francis Keenan   +3 more
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Out-of-equilibrium thermodynamics of quantum optomechanical systems

New Journal of Physics, 2015
We address the out-of-equilibrium thermodynamics of an isolated quantum system consisting of a cavity optomechanical device. We explore the dynamical response of the system when driven out of equilibrium by a sudden quench of the coupling parameter and ...
M Brunelli, A Xuereb, A Ferraro, G De Chiara, N Kiesel, M Paternostro   +5 more
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Testing the foundation of quantum physics in space via Interferometric and non-interferometric experiments with mesoscopic nanoparticles

Communications Physics, 2021
This perspective presents current and future possibilities offered by space technology for testing quantum mechanics, with a focus on mesoscopic superposition of nanoparticles and the potential of interferometric and non-interferometric experiments in ...
Giulio Gasbarri, Alessio Belenchia, Matteo Carlesso, Sandro Donadi, Angelo Bassi, Rainer Kaltenbaek, Mauro Paternostro, Hendrik Ulbricht   +7 more
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Entanglement classification via neural network quantum states

New Journal of Physics, 2020
The task of classifying the entanglement properties of a multipartite quantum state poses a remarkable challenge due to the exponentially increasing number of ways in which quantum systems can share quantum correlations.
Cillian Harney, Stefano Pirandola, Alessandro Ferraro, Mauro Paternostro   +3 more
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Dynamical symmetries and crossovers in a three-spin system with collective dissipation

New Journal of Physics, 2015
We consider the non-equilibrium dynamics of a simple system consisting of interacting spin-1/2 particles subjected to a collective damping. The model is close to situations that can be engineered in hybrid electro/opto-mechanical settings.
S Pigeon, A Xuereb, I Lesanovsky, J P Garrahan, G De Chiara, M Paternostro   +5 more
doaj   +1 more source