Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ş. K. Özdemir"'
Autor:
J.-W. Zhang, J.-Q. Zhang, G.-Y. Ding, J.-C. Li, J.-T. Bu, B. Wang, L.-L. Yan, S.-L. Su, L. Chen, F. Nori, Ş. K. Özdemir, F. Zhou, H. Jing, M. Feng
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Investigations of quantum thermal machines and Liouvillian exceptional points have rarely crossed each other. Here, the authors realize experimentally a quantum Otto engine using a single trapped ion, and show that crossing a Liouvillian exceptional
Externí odkaz:
https://doaj.org/article/05133dafa06b46c4979e7b2dbac561a7
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Robust engineering of non-Hermitian light-matter coupling will be crucial for future optical device design. Here the authors present a photonic system that operates on an exceptional surface, demonstrating chiral and degenerate absorption with super-
Externí odkaz:
https://doaj.org/article/51b8125c2b5e4bf8bde6bfd624c576b1
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract We study mechanical cooling in systems of coupled passive (lossy) and active (with gain) optical resonators. We find that for a driving laser which is red-detuned with respect to the cavity frequency, the supermode structure of the system is
Externí odkaz:
https://doaj.org/article/10f592a0988148838a7cbd1d671ea517
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013220 (2021)
We investigate spontaneous emission from a quantum emitter located within the mode volume of a microring resonator that features chiral exceptional points. We show that this configuration offers enough degrees of freedom to exhibit a full control to
Externí odkaz:
https://doaj.org/article/fd20c61dcb2a4413a6b5727e62f95185
Autor:
J.-T. Bu, J.-Q. Zhang, G.-Y. Ding, J.-C. Li, J.-W. Zhang, B. Wang, W.-Q. Ding, W.-F. Yuan, L. Chen, Ş. K. Özdemir, F. Zhou, H. Jing, M. Feng
Quantum heat engines are expected to outperform the classical counterparts due to quantum coherences involved. Here we experimentally execute a single-ion quantum heat engine and demonstrate, for the first time, the dynamics and the enhanced performa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f0b453fe64a307d20552bcdfbbb32b8
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate an exceptional surface in a waveguide-coupled resonator by establishing unidirectional coupling between its frequency-degenerate counterpropagating modes. When operated on the ES, the system chiral perfect absorption with quartic lines
Autor:
Ran Huang, Ş. K. Özdemir, Jie‐Qiao Liao, Fabrizio Minganti, Le‐Man Kuang, Franco Nori, Hui Jing
Publikováno v:
Laser & Photonics Reviews. 16:2270034
Publikováno v:
Nature materials. 18(8)
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
The authors develop a closed-form expansion of the linear response associated with resonant non-Hermitian systems having exceptional points and demonstrate that the spectral response may involve different super Lorentzian lineshapes depending on the
Externí odkaz:
https://doaj.org/article/860c8aa937d8491884981a8be3a9d414
Autor:
T. Tashima, T. Wakatsuki, Ş. K. Özdemir, T. Yamamoto, M. Koashi, N. Imoto, Alexander Lvovsky
Publikováno v:
AIP Conference Proceedings.
We propose and demonstrate a local transformation of two EPR photon pairs to three‐photon W state. The key issue of our scheme is that it requires only one polarization dependent beamsplitter to perform the necessary local operation. Using a quantu