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Leone Villari, Ewan Wright, Fabio Biancalana and Claudio Conti report on the possibility that all types of classical solitons may evaporate in the quantum regime. A paper in the arXiv contains the theory on the exact quantization of the nonlinear Schroedinger equation: solitons emit a blackbody radiation spectrum at a temperature given by the same formula of Hawking!

This result is intriguing. On one hand, because it represents the first theoretical prediction of the Hawking radiation in a fully nonlinear quantum field theory. The standard Hawking theory relies on the quantization of a linear field in a curved background. The theory may hence provide insights for a true quantum gravity based on the complete quantization of the Einstein-Hilbert equations.

On the other hand, the result is also important because the Hawking radiation from a quantum soliton may furnish a novel highly tunable quantum source with many possible applications.

]]>The picture below shows a pictorial representation of the Gelfand triplet, the phase space of the Time Asymmetric Quantum Mechanics

]]>In a recent manuscript in arXiv, Marco Ornigotti, Leone di Mauro Villari, Alexander Szeimeit, and Claudio Conti study propagation invariant quantum X-waves with angular momentum. The adopted representation expresses the electromagnetic field as a quantum gas of weakly interacting bosons. The resulting spatio-temporal quantized light pulses are not subject to diffraction and dispersion, and are intrinsically resilient to disturbances in propagation. Spontaneous down-conversion generates squeezed X-waves useful for quantum protocols. Surprisingly the orbital angural momentum affects the squeezing angle, and a characteristic axicon aperture for maximal squeezing exists.

There results may boost the applications in free space of quantum optical transmission and multi-level quantum protocols, and may also be relevant for novel kinds of interferometers, as satellite-based gravitational wave detectors.

]]>Marco Ornigotti, Claudio Conti, and Alexander Szameit extend to the polychromatic domain the light beams with cylindrical polarization, which have widespread applications in microscopy and spectroscopy.

These light pulses represent a fully vectorial solution of Maxwell equations, can be focused at the sub-wavelength scale and may open a number of possibilities for a new generation of imaging devices, and for free space information transmission.

The paper was published in Journal of Optics (ArXiv:1602.03317)

]]>In a paper posted in the ArXiv, Maria Chiara Braidotti, Ziad Musslimani and Claudio Conti show the way the generalized uncertainty principle, introduced for studying physics at the Planck scale, has a role in optics, and may stimulate unexpected applications for high resolution imaging and ultrafast propagation.

The picture below shows a representation of the generalized uncertainty principle (G-UP) and the difference with the standard Heisenberg principle (H-UP), further details in our paper in the ArXiv.

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http://nanotechweb.org/cws/article/tech/64211

http://www.azonano.com/news.aspx?newsID=34445

https://cosmosmagazine.com/technology/five-new-uses-miracle-material-graphene

http://www.directorstalk.com/graphene-oxide-could-help-fight-hospital-acquired-infections-2/

http://www.milanofinanza.it/articoli/i-nuovi-killer-di-batteri-2075304?preview=false&access=FA

**The research has been spotted by the Dailymail !**

Other press release:

http://www.liberoquotidiano.it/news/salute/11893222/Funghi-e-batteri-killer-in-ospedale.html

http://www.corriere.it/notizie-ultima-ora/Scienza_e_salute/Grafene-puo-diventare-disifettante/29-03-2016/1-A_022733436.shtml

http://www.repubblica.it/salute/ricerca/2016/03/31/news/dalla_matita_all_ospedale_il_grafene_diventa_un_disinfettante-136757741/

http://www.e-gazette.it/sezione/tecnologia/grafene-potrebbe-essere-disinfettante-futuro-dice-studio-italiano-presentato-los-#.VwPE7CZxPQM.email

Press Release in Italian "Donna del Corriere della Sera"

Press release in the Netherlands

Press release in Japan !

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