Search Results - "Ranfagni, A."

Spectral Analysis of Quantum Field Fluctuations in a Strongly Coupled Optomechanical System by Ranfagni, A, Marino, F, Marin, F

“…With a levitodynamics experiment in the strong and coherent quantum optomechanical coupling regime, we demonstrate that the oscillator acts as a broadband…”
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Vectorial polaritons in the quantum motion of a levitated nanosphere by Ranfagni, A., Vezio, P., Calamai, M., Chowdhury, A., Marino, F., Marin, F.

“…The strong coupling between photons and bosonic excitations in matter produces hybrid quasiparticle states known as polaritons 1 – 3 . Their signature is the…”
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Two-dimensional quantum motion of a levitated nanosphere by Ranfagni, A., Børkje, K., Marino, F., Marin, F.

“…We report on the two-dimensional (2D) dynamics of a levitated nanoparticle in an optical cavity. The motion of the nanosphere is strongly coupled to the cavity…”
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Transfer of a levitating nanoparticle between optical tweezers by Calamai, M., Ranfagni, A., Marin, F.

“…We demonstrate and characterize the transfer of a levitating silica nanosphere between two optical tweezers at low pressure. Both optical traps are mounted on…”
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Macroscopic quantum tunneling in differently loaded Josephson junctions by Ranfagni, A., Mugnai, D.

“…In relation to the problem of quantum measurement, macroscopic quantum tunneling (MQT) in Josephson junctions is one of the most investigated topics. Although…”
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A method for determining dissipative effects in superconductive devices by Ranfagni, A., Mugnai, D.

“…A simple criterion for evaluating dissipative effects in superconductive tunneling devices is presented, and is established on the basis of a shortening of the…”
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Microwave propagation of surface waves by Mugnai, D., Ranfagni, A.

“…Experimental results of field amplitude and delay-time variation in microwave propagation in the presence of lossy media (dielectric or conductor) are…”
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Observation of superluminal behaviors in wave propagation by Mugnai, D, Ranfagni, A, Ruggeri, R

“…The possibility of observing superluminal behavior in the propagation of localized microwaves over distances of tens of wavelengths is experimentally…”
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Decay kinetics of high- and low-energy emission in the A band of KCl:Tl by Ranfagni, A., Pazzi, G.P., Fabeni, P., Mugnai, D.

“…Within a revival of interest in the emission properties of Tl+-like impurity centers in alkali-halide crystals, the problem of a complete interpretation of…”
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Stochastic model in microwave propagation by Ranfagni, A., Mugnai, D.

“…Further experimental results of delay time in microwave propagation are reported in the presence of a lossy medium (wood). The measurements show that the…”
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Structured AT-emission of KCl:Tl by Mugnai, D., Pazzi, G.P., Fabeni, P., Ranfagni, A.

“…The experimental evidence of an anomalous behavior in the decay times of Tl+-like impurity centers in alkali-halide crystals has generated a revival of…”
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Two possible interpretations of the near-field anomaly in microwave propagation by Agresti, A., Cacciari, I., Ranfagni, A., Mugnai, D., Mignani, R., Petrucci, A.

“…Microwave propagation experiments, over a short range, demonstrated that the ratio b=c/v of the light velocity c to the observed one v resulted to be less than…”
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The question of tunneling time duration: A new experimental test at microwave scale by Mugnai, D., Ranfagni, A., Ronchi, L.

“…Delay-time measurements in a two-prism experiment, at microwave scale, have been performed, both for phase- and group-delay, in the range of picoseconds. The…”
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Pupils with super-resolution by Mugnai, D, Ranfagni, A, Ruggeri, R

“…In 1952 Toraldo di Francia [Il Nuovo Cimento (Suppl.) 9 (1952) 426] proposed an intriguing concept to increase the optical resolving power. As a consequence,…”
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Anomalous forerunners in wave propagation interpreted by a typical diffraction integral by Ranfagni, A., Cacciari, I., Ruggeri, R., Agresti, A., Mignani, R., Ricci, A. M., Petrucci, A.

“…By using radar techniques over distances of 16 and 80 m, microwave propagation experiments revealed the presence of anomalous forerunners situated in advanced…”
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Delay-time measurements in narrowed waveguides as a test of tunneling by RANFAGNI, A, MUGNAI, D, FABENI, P, PAZZI, G. P

“…Delay-time measurements with a microwave setup, where a step narrowing in the waveguide simulates a quantum mechanical potential barrier, have been performed…”
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Characteristic time-scales for macroscopic quantum tunneling by Ranfagni, A., Cacciari, I., Sandri, P., Ranfagni, C., Ruggeri, R., Agresti, A.

“…Tunneling time ( τ t ) , in its real and imaginary parts, can be deduced from measurements of decay time ( τ d ) in Josephson junctions. It turns out that the…”
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Decay kinetics in low-energy emission of KCl:Tl: A Jahn-Teller model interpretation by FABENI, P, MUGNAI, D, PAZZI, G. P, RANFAGNI, A

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The question of the superluminal speed of information by Ranfagni, A., Fabeni, P., Pazzi, G.P., Ricci, A.M., Trinci, R., Mignani, R., Ruggeri, R., Cardone, F.

“…The debated question of the superluminal speed of information, a vexata quaestio, remains open to different interpretations in spite of recent, apparently…”
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A note on microwave guided propagation in the case of anomalous dispersion by Mugnai, D., Ranfagni, A., Ruggeri, R.

“…A group velocity greater than that of light, in propagation through dispersive media, was theoretically predicted by Brillouin. We present a simple experiment…”
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