Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Benalcazar, Wladimir"'
Autor:
Zhong, Jia-Xin, de Castro, Pedro Fittipaldi, Lu, Tianhong, Kim, Jeewoo, Oudich, Mourad, Ji, Jun, Shi, Li, Chen, Kai, Lu, Jing, Jing, Yun, Benalcazar, Wladimir A.
The non-Hermitian skin effect (NHSE) is a distinctive topological phenomenon observed in nonHermitian systems. Recently, there has been considerable interest in exploring higher-order NHSE occurrences in two and three dimensions. In such systems, top
Externí odkaz:
http://arxiv.org/abs/2409.01516
The nonlinear Schrodinger equation supports solitons -- self-interacting, localized states that behave as nearly independent objects. We exhibit solitons with self-induced nonreciprocal dynamics in a discrete nonlinear Schrodinger equation. This nonr
Externí odkaz:
http://arxiv.org/abs/2405.14919
Autor:
Liu, Gengming, Workman, Violet, Noh, Jiho, Ma, Yuhao, Hughes, Taylor L., Benalcazar, Wladimir A., Bahl, Gaurav
Topological crystalline insulators (TCIs) are classified by topological invariants defined with respect to the crystalline symmetries of their gapped bulk. The bulk-boundary correspondence then links the topological properties of the bulk to robust o
Externí odkaz:
http://arxiv.org/abs/2310.10403
Nonlinear lattice models can support "discrete breather" excitations that stay localized in space for all time. By contrast, the localized Wannier states of linear lattice models are dynamically unstable. Nevertheless, symmetric and exponentially loc
Externí odkaz:
http://arxiv.org/abs/2309.07244
Autor:
Ghorashi, Ali, Vaidya, Sachin, Rechtsman, Mikael, Benalcazar, Wladimir, Soljačić, Marin, Christensen, Thomas
The topological characteristics of photonic crystals have been the subject of intense research in recent years. Despite this, the basic question of whether photonic band topology is rare or abundant -- i.e., its relative prevalence -- remains unaddre
Externí odkaz:
http://arxiv.org/abs/2307.15701
Autor:
Wang, Dongyi, Deng, Yuanchen, Oudich, Mourad, Benalcazar, Wladimir A., Ma, Guancong, Jing, Yun
Higher-order topological band theory has transformed the landscape of topological phases in quantum and classical systems. Here, we experimentally demonstrate a two-dimensional (2D) higher-order topological phase (HOTP), referred to as the multiple c
Externí odkaz:
http://arxiv.org/abs/2305.08313
Chern insulators present a topological obstruction to a smooth gauge in their Bloch wave functions that prevents the construction of exponentially-localized Wannier functions - this makes the electric polarization ill-defined. Here, we show that spat
Externí odkaz:
http://arxiv.org/abs/2304.13118
Autor:
Vaidya, Sachin, Ghorashi, Ali, Christensen, Thomas, Rechtsman, Mikael C., Benalcazar, Wladimir A.
Photonic crystals (PhCs) have emerged as a popular platform for realizing various topological phases due to their flexibility and potential for device applications. In this article, we present a comprehensive classification of topological bands in on
Externí odkaz:
http://arxiv.org/abs/2303.10261
Publikováno v:
Nature Communications 13, 6597 (2022)
The rich physical properties of multiatomic molecules and crystalline structures are determined, to a significant extent, by the underlying geometry and connectivity of atomic orbitals. This orbital degree of freedom has also been used effectively to
Externí odkaz:
http://arxiv.org/abs/2204.06238
Autor:
Deng, Yuanchen, Benalcazar, Wladimir A., Chen, Ze-Guo, Oudich, Mourad, Ma, Guancong, Jing, Yun
Building upon the bulk-boundary correspondence in topological phases of matter, disclinations have recently been harnessed to trap fractionally quantized density of states (DoS) in classical wave systems. While these fractional DoS have associated st
Externí odkaz:
http://arxiv.org/abs/2112.05182