Zobrazeno 1 - 10
of 202
pro vyhledávání: '"A. Villois"'
Recent experimental advancements enabled the creation of various systems exhibiting superfluid behavior, with one notable achievement being the development of dipolar Bose-Einstein condensates (dBECs). When confined along one or more spatial dimensio
Externí odkaz:
http://arxiv.org/abs/2407.18412
Autor:
Falsi, Ludovica, Villois, Alberto, Coppini, Francesco, Agranat, Aharon J., DelRe, Eugenio, Trillo, Stefano
The Kerr nonlinearity allows for exact analytic soliton solutions in 1+1D. While nothing excludes that these solitons form in naturally-occurring real-world 3D settings as solitary walls or stripes, their observation has previously been considered un
Externí odkaz:
http://arxiv.org/abs/2405.00883
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p L012017 (2021)
We consider a high-Q microresonator with χ^{(2)} nonlinearity under conditions when the coupling rate between the sidebands around the pump and its second harmonic exceeds the damping rates, implying the strong coupling regime (SC). Using the dresse
Externí odkaz:
https://doaj.org/article/5ccf7fc14c8440b7956309494b161384
Dissipative solitons in optical microcavities have attracted significant attention in recent years due to their direct association with the generation of optical frequency combs. Here, we address the problem of dissipative soliton breathers in a micr
Externí odkaz:
http://arxiv.org/abs/2307.02893
Publikováno v:
Physical Review A 104, 013520 (2021)
We present a theory of the frequency comb generation in the high-Q ring microresonators with quadratic nonlinearity and normal dispersion and demonstrate that the naturally large difference of the repetition rates at the fundamental and 2nd harmonic
Externí odkaz:
http://arxiv.org/abs/2107.09111
Publikováno v:
Physical Review Research, vol 3, issue 1, L012017 (2021)
We consider a high-Q microresonator with $\chi^{(2)}$ nonlinearity under conditions when the coupling rates between the sidebands around the pump and second harmonic exceed the damping rates, implying the strong coupling regime (SC). Using the dresse
Externí odkaz:
http://arxiv.org/abs/2102.08977
Publikováno v:
Physical Review A, vol 103, L011502 (2021)
We show that the threshold condition for two pump photons to convert into a pair of the sideband ones in Kerr microresonators with high-quality factors breaks the pump laser parameter space into a sequence of narrow in frequency and broad in power Ar
Externí odkaz:
http://arxiv.org/abs/2101.02247
Publikováno v:
Phys. Rev. A 103, 011502 (2021)
We report that an instability boundary of a single-mode state in Kerr ring microresonators with ultrahigh quality factors breaks the parameter space span by the pump laser power and frequency into a sequence of narrow in frequency and broad in power
Externí odkaz:
http://arxiv.org/abs/2006.04274
Publikováno v:
Phys. Rev. Lett. 125, 164501 (2020)
We statistically study vortex reconnections in quantum fluids by evolving different realizations of vortex Hopf links using the Gross--Pitaevskii model. Despite the time-reversibility of the model, we report a clear evidence that the dynamics of the
Externí odkaz:
http://arxiv.org/abs/2005.02048
Autor:
Szabados, Jan, Puzyrev, Danila N., Minet, Yannick, Reis, Luis, Buse, Karsten, Villois, Alberto, Skryabin, Dmitry V., Breunig, Ingo
Publikováno v:
Phys. Rev. Lett. 124, 203902 (2020)
Optical frequency combs are revolutionising modern time and frequency metrology. In the past years, their range of applications has increased substantially, driven by their miniaturisation through microresonator-based solutions. The combs in such dev
Externí odkaz:
http://arxiv.org/abs/1912.00945