Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Skipetrov, Sergey"'
Autor:
Skipetrov, Sergey E., Wulles, Pierre
Publikováno v:
Comptes Rendus. Physique, Vol , Iss , Pp 1-16 (2023)
Disorder in atomic positions can induce a topologically nontrivial phase—topological Anderson insulator (TAI)—for transverse electric optical quasimodes of a two-dimensional honeycomb lattice of immobile atoms. TAI requires both time-reversal and
Externí odkaz:
https://doaj.org/article/d22b8531936a4332b2cba02f67861b66
We study Anderson transition for light in three dimensions by performing large-scale ab-initio simulations of electromagnetic wave transport in disordered ensembles of conducting spheres. A mobility edge that separates diffusive transport and Anderso
Externí odkaz:
http://arxiv.org/abs/2408.04853
Autor:
Skipetrov, Sergey E.
For a Hamiltonian ${\hat H}$ containing a position-dependent (disordered) potential, we introduce a sequence of landscape functions $u_n(\mathbf{r})$ obeying ${\hat H} u_n(\mathbf{r}) = u_{n-1}(\mathbf{r})$ with $u_0(\mathbf{r}) = 1$. For $n \to \inf
Externí odkaz:
http://arxiv.org/abs/2408.05078
Autor:
Skipetrov, Sergey E., Sokolov, Igor M.
A solid transparent medium with randomly positioned, immobile impurity atoms is a promising candidate for observation of Anderson localization of light in three dimensions. It can have low losses and allows for mitigation of the detrimental effect of
Externí odkaz:
http://arxiv.org/abs/2408.01381
Autor:
Wulles, Pierre, Skipetrov, Sergey E.
The spectrum of excitations a two-dimensional, planar honeycomb lattice of two-level atoms coupled by the in-plane electromagnetic field may exhibit band gaps that can be opened either by applying an external magnetic field or by breaking the symmetr
Externí odkaz:
http://arxiv.org/abs/2308.13423
Autor:
Skipetrov, Sergey E., Wulles, Pierre
Publikováno v:
Comptes Rendus. Physique 24, 39 (2023)
Disorder in atomic positions can induce a topologically nontrivial phase - topological Anderson insulator (TAI) - for transverse electric optical quasimodes of a two-dimensional honeycomb lattice of immobile atoms. TAI requires both time-reversal and
Externí odkaz:
http://arxiv.org/abs/2212.05046
Autor:
Yamilov, Alexey, Skipetrov, Sergey E., Hughes, Tyler W., Minkov, Momchil, Yu, Zongfu, Cao, Hui
Publikováno v:
Nature Physics 19, 1308-1313 (2023)
Anderson localization marks a halt of diffusive wave propagation in disordered systems. Despite extensive studies over the past 40 years, Anderson localization of light in three dimensions has remained elusive, leading to the question of its very exi
Externí odkaz:
http://arxiv.org/abs/2203.02842
We study Anderson localization of a scalar wave in an ensemble of resonant point scatterers embedded in an anisotropic background medium. For uniaxial anisotropy of moderate strength, the mobility edges and the critical exponent of the localization t
Externí odkaz:
http://arxiv.org/abs/2107.12199
Autor:
Tallon, Benoit, Roux, Philippe, Matte, Guillaume, Guillard, Jean, Page, John H., Skipetrov, Sergey E.
A dramatic slowing down of acoustic wave transport in dense fish shoals is observed in open-sea fish cages. By employing a multi-beam ultrasonic antenna, we observe the coherent backscattering (CBS) phenomenon. We extract key parameters of wave trans
Externí odkaz:
http://arxiv.org/abs/2103.01375
Publikováno v:
Phys. Rev. B 102, 220201 (2020)
We study the transport of classical waves through three-dimensional (3D) anisotropic media close to the Anderson localization transition. Time-, frequency-, and position-resolved ultrasonic measurements are performed on anisotropic slab-shaped mesogl
Externí odkaz:
http://arxiv.org/abs/2011.09560