Zobrazeno 1 - 10
of 1 061
pro vyhledávání: '"Vidal, P. J."'
Superfocusing confines light within subwavelength structures, breaking the diffraction limit. Structures with spatial singularities, such as metallic cones, are crucial to enable nanoscale focusing, leading to significant advancements in nanophotonic
Externí odkaz:
http://arxiv.org/abs/2411.08157
Cherenkov radiation in artificial structures experiencing strong radiation enhancements promises important applications in free-electron quantum emitters, broadband light sources, miniaturized particle detectors, etc. However, the momentum matching c
Externí odkaz:
http://arxiv.org/abs/2408.13993
The manipulation of low-energy matter properties such as superconductivity, ferromagnetism and ferroelectricity via cavity quantum electrodynamics engineering has been suggested as a way to enhance these many-body collective phenomena. In this work,
Externí odkaz:
http://arxiv.org/abs/2407.19478
Using topology optimization, we inverse-design nanophotonic cavities enabling the preparation of pure states of pairs and triples of quantum emitters. Our devices involve moderate values of the dielectric constant, operate under continuous laser driv
Externí odkaz:
http://arxiv.org/abs/2405.15361
A connected graph can be associated with two distinct evolution algebras. In the first case, the structural matrix is the adjacency matrix of the graph itself. In the second case, the structural matrix is the transition probabilities matrix of the sy
Externí odkaz:
http://arxiv.org/abs/2405.12341
Publikováno v:
Nature Communications 15, 4000 (2024)
Magnetic order typically emerges due to the short-range exchange interaction between the constituent electronic spins. Recent discoveries have found a crucial role for spin-phonon coupling in various phenomena from optical ultrafast magnetization swi
Externí odkaz:
http://arxiv.org/abs/2405.09246
Time-varying media offer a platform to realize novel and exotic wave effects, including photonic time crystals characterized by momentum band gaps with exponential wave amplification. Here we focus on the quantum electrodynamical properties of time-v
Externí odkaz:
http://arxiv.org/abs/2405.05043
Autor:
Hoang, Thanh Xuan, Leykam, Daniel, Chu, Hong-Son, Png, Ching Eng, Garcıa-Vidal, Francisco J., Kivshar, Yuri S.
We study high quality-factor (high Q) resonances supported by periodic arrays of Mie resonators from the perspectives of both Bloch wave theory and multiple scattering theory. We reveal that, unlike a common belief, the bound states in the continuum
Externí odkaz:
http://arxiv.org/abs/2405.01034
Autor:
Fajardo, M. D., Vidal-Nunez, J.
In this paper we study how Lagrange duality is connected to optimization problems whose objective function is the difference of two convex functions, briefly called DC problems. We present two Lagrange dual problems, each of them obtained via a diffe
Externí odkaz:
http://arxiv.org/abs/2403.11248
Autor:
You, Jia-Bin, Kong, Jian Feng, Aghamalyan, Davit, Mok, Wai-Keong, Lim, Kian Hwee, Ye, Jun, Png, Ching Eng, García-Vidal, Francisco J.
We explore a scheme for entanglement generation and optimization in giant atoms by coupling them to finite one-dimensional arrays of spins that behave as cavities. We find that high values for the concurrence can be achieved in small-sized cavities,
Externí odkaz:
http://arxiv.org/abs/2403.00264