Effects of quenching protocols based on parametric oscillators

Autor: Giulio Landolfi, Mariagiovanna Gianfreda

Publikováno v: Chinese Journal of Physics. 74:328-349

We consider the problem of understanding the basic features displayed by quantum systems described by parametric oscillators whose time-dependent frequency parameter ω ( t ) varies continuously during evolution so to realise quenching protocols of d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f0c6a116ad6e651324c84fe4ec03f5b
https://doi.org/10.1016/j.cjph.2021.07.017

Coupling analysis of high Q resonators in add-drop configuration through cavity ringdown spectroscopy

Autor: Simone Berneschi, Yannick Dumeige, Ayda Aray, Silvia Soria, Francesco Baldini, Stefano Pelli, Andrea Barucci, Mariagiovanna Gianfreda, Daniele Farnesi, Patrice Feron, Mojtaba Arjmand, G. Nunzi Conti, Gabriele Frigenti

Publikováno v: Journal of Optics
Journal of Optics, 2018, 20 (6), pp.065706. ⟨10.1088/2040-8986/aac459⟩
Journal of Optics, Institute of Physics (IOP), 2018, 20 (6), pp.065706. ⟨10.1088/2040-8986/aac459⟩
Journal of optics
20 (2018). doi:10.1088/2040-8986/aac459
info:cnr-pdr/source/autori:Frigenti, G.; Arjmand, M.; Barucci, A.; Baldini, F.; Berneschi, S.; Farnesi, D.; Gianfreda, M.; Pelli, S.; Soria, S.; Aray, A.; Dumeige, Y.; Féron, P.; Conti, G. Nunzi/titolo:Coupling analysis of high Q resonators in add-drop configuration through cavity ringdown spectroscopy/doi:10.1088%2F2040-8986%2Faac459/rivista:Journal of optics (Print)/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:20

International audience; An original method able to fully characterize high-Q resonators in an add-drop configuration has been implemented. The method is based on the study of two cavity ringdown (CRD) signals, which are produced at the transmission a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8f2ed9fcc5b90b909b5d9488fe01f96
https://hal.science/hal-01940112/document

Parity–time-symmetric whispering-gallery microcavities

Autor: Fuchuan Lei, Gui-Lu Long, Franco Nori, Lan Yang, Carl M. Bender, Sahin Kaya Ozdemir, Bo Peng, Mariagiovanna Gianfreda, Shanhui Fan, Faraz Monifi

Publikováno v: Nature Physics. 10:394-398

It is now shown that coupled optical microcavities bear all the hallmarks of parity–time symmetry; that is, the system’s dynamics are unchanged by both time-reversal and mirror transformations. The resonant nature of microcavities results in unus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b72736321a411a81a44a4449454a3275
https://doi.org/10.1038/nphys2927

Bound states, scattering states and resonant states in PT-symmetric open quantum systems

Autor: Naomichi Hatano, Mariagiovanna Gianfreda, Savannah Garmon

We study a simple open quantum system with a $\mathcal{PT}$-symmetric defect potential as a prototype in order to illustrate a number of general features of $\mathcal{PT}$-symmetric open quantum systems; however, the potential itself could be mimicke

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a6b752a9f5cda8fc5364043a3b5d378
http://arxiv.org/abs/1505.04267

Spectral Problems for The Weyl-ordered Form of Operators $\left(\frac{1}{\hat{p}}\right)^{n} \hat{q}^{n}$

Autor: Mariagiovanna Gianfreda, LANDOLFI, Giulio

In this paper, we consider quantization of powers of the ratio between the Hamiltonian coordinates for position and momentum in one-dimensional systems. The domain of the operators consists of square integrable functions over a finite real interval t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4034::a68bbc88242f6daa4b75eaef78849068
http://link.aip.org/link/?JMP/52/122104