Zobrazeno 1 - 10
of 3 941
pro vyhledávání: '"non-Hermitian"'
Autor:
Oh Donghak, Baek Soojeong, Lee Sangha, Lee Kyungmin, Park Jagang, Liu Zhaowei, Kim Teun-Teun, Min Bumki
Publikováno v:
Nanophotonics, Vol 13, Iss 24, Pp 4409-4416 (2024)
Non-Hermitian systems can be tuned to exhibit exceptional points, where both eigenvalues and eigenstates coalesce concurrently. The inherent adaptability of photonic non-Hermitian systems in configuring gain and loss has allowed us to observe a pleth
Externí odkaz:
https://doaj.org/article/1ca3a1203a0042f7b589cae14a96f84a
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract The non-Hermitian skin effect and nonreciprocal behavior are sensitive to the boundary conditions, which are unique features of non-Hermitian systems. In such systems, eigenenergies can become complex, and all eigenstates tend to localize at
Externí odkaz:
https://doaj.org/article/df48ec7eb8c747b29528906fd6c10ea2
Publikováno v:
Nanophotonics, Vol 13, Iss 21, Pp 3945-3952 (2024)
The performance of all active photonic devices today is greatly limited by loss. Here, we show that one can engineer a low loss path in a metal-clad lossy multi-mode waveguide while simultaneously achieving high-performance active photonic devices. W
Externí odkaz:
https://doaj.org/article/c0320f980dc8418895a648b93af7d55d
Autor:
Leonardo S. Lima
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Spin transport theory of non-Hermitian quantum systems, where the non-Hermiticity led to a series of exotic phenomena when the system experiences dissipation to an environment is proposed. The goal is a better understanding of the spin diffu
Externí odkaz:
https://doaj.org/article/0e5b87c5ea6a4f48b0aa8874abfe4c24
Autor:
Kędziora Mateusz, Król Mateusz, Kapuściński Piotr, Sigurðsson Helgi, Mazur Rafał, Piecek Wiktor, Szczytko Jacek, Matuszewski Michał, Opala Andrzej, Piętka Barbara
Publikováno v:
Nanophotonics, Vol 13, Iss 14, Pp 2491-2500 (2024)
Exploring the non-Hermitian properties of semiconductor materials for optical applications is at the forefront of photonic research. However, the selection of appropriate systems to implement such photonic devices remains a topic of debate. In this w
Externí odkaz:
https://doaj.org/article/18908d3f773d4bada0e54a37bb5da092
Akademický článek
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Publikováno v:
Results in Physics, Vol 64, Iss , Pp 107932- (2024)
Non-Hermitian systems based on anti-parity-time (PT) symmetry reveal rich physics beyond the Hermitian regime. Here, the anti-PT-symmetric photonic lattice is effectively achieved in a four-level inverted Y-type 85Rb atomic vapor. Such instantaneousl
Externí odkaz:
https://doaj.org/article/e65618f0a3594582b4e880a201d7c71a
Publikováno v:
Results in Physics, Vol 64, Iss , Pp 107917- (2024)
We study the steady-state non-Hermitian magnomechanical system driven by a transverse magnetic field directly interacting with YIG sphere yielding in magnons excitation, which later interacts with cavity microwave photons. To make the system non-Herm
Externí odkaz:
https://doaj.org/article/1478b35314854707acfa6d4bb9e271fd
Autor:
Ying Ming, Rong-Can Yang
Publikováno v:
Results in Physics, Vol 64, Iss , Pp 107915- (2024)
Nonreciprocal transmission, reflection and absorption are very important in quantum science. For their realization, cavity magnonics is attracting much attention, where Kittel mode describing collective excitations of a large number of spins is excit
Externí odkaz:
https://doaj.org/article/c75263fb398a414284dd319cf5106f48