Zobrazeno 1 - 10
of 222
pro vyhledávání: '"Ching Hua Lee"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-14 (2024)
Abstract Programmable quantum simulators may one day outperform classical computers at certain tasks. But at present, the range of viable applications with noisy intermediate-scale quantum (NISQ) devices remains limited by gate errors and the number
Externí odkaz:
https://doaj.org/article/e5e25a78a6654e24af7804a98c57a8d9
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Parity-time ( $${{{{{{{\mathcal{PT}}}}}}}}$$ PT ) symmetry is a cornerstone of non-Hermitian physics as it ensures real energies for stable experimental realization of non-Hermitian phenomena. In this work, we propose $${{{{{{{\mathcal{PT}}}
Externí odkaz:
https://doaj.org/article/60a896ca41104238ae1239ea18a76be7
Autor:
Ce Shang, Shuo Liu, Caigui Jiang, Ruiwen Shao, Xiaoning Zang, Ching Hua Lee, Ronny Thomale, Aurélien Manchon, Tie Jun Cui, Udo Schwingenschlögl
Publikováno v:
Advanced Science, Vol 11, Iss 11, Pp n/a-n/a (2024)
Abstract The modern theory of quantized polarization has recently extended from 1D dipole moment to multipole moment, leading to the development from conventional topological insulators (TIs) to higher‐order TIs, i.e., from the bulk polarization as
Externí odkaz:
https://doaj.org/article/99e0383d53cc40b4bdc445bfbd9cfb95
Autor:
Xiao Zhang, Boxue Zhang, Haydar Sahin, Zhuo Bin Siu, S. M. Rafi-Ul-Islam, Jian Feng Kong, Bing Shen, Mansoor B. A. Jalil, Ronny Thomale, Ching Hua Lee
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-11 (2023)
Abstract Much of the qualitative nature of physical systems can be predicted from the way it scales with system size. Contrary to the continuum expectation, we observe a profound deviation from logarithmic scaling in the impedance of a two-dimensiona
Externí odkaz:
https://doaj.org/article/6cba9955f2bc425495d606d351edd65c
Symmetry‐Induced Selective Excitation of Topological States in Su–Schrieffer–Heeger Waveguide Arrays
Autor:
Min Tang, Jiawei Wang, Sreeramulu Valligatla, Christian N. Saggau, Haiyun Dong, Ehsan Saei Ghareh Naz, Sebastian Klembt, Ching Hua Lee, Ronny Thomale, Jeroen van den Brink, Ion Cosma Fulga, Oliver G. Schmidt, Libo Ma
Publikováno v:
Advanced Photonics Research, Vol 4, Iss 11, Pp n/a-n/a (2023)
The investigation of topological state transition in carefully designed photonic lattices is of high interest for fundamental research, as well as for applied studies such as manipulating light flow in on‐chip photonic systems. Herein, the topologi
Externí odkaz:
https://doaj.org/article/7fe35d816dc443adb473d219fac4ba29
Autor:
Ruizhe Shen, Ching Hua Lee
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-11 (2022)
This study extends the notion of the non-Hermitian skin effect to the regime where many-body interactions dominate single particle energetics, reminiscent of fractional quantum Hall systems. It reveals the emergence of a family of "skin cluster" stat
Externí odkaz:
https://doaj.org/article/04fe388359db403598ce5393f03ff3b6
Autor:
Patrick M. Lenggenhager, Alexander Stegmaier, Lavi K. Upreti, Tobias Hofmann, Tobias Helbig, Achim Vollhardt, Martin Greiter, Ching Hua Lee, Stefan Imhof, Hauke Brand, Tobias Kießling, Igor Boettcher, Titus Neupert, Ronny Thomale, Tomáš Bzdušek
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Spaces with negative curvature are difficult to realise and investigate experimentally, but they can be emulated with synthetic matter. Here, the authors show how to do this using an electric circuit network, and present a method to characterize and
Externí odkaz:
https://doaj.org/article/f3e742da54644207a0c96ca9b44595a5
Autor:
Hendrik Hohmann, Tobias Hofmann, Tobias Helbig, Stefan Imhof, Hauke Brand, Lavi K. Upreti, Alexander Stegmaier, Alexander Fritzsche, Tobias Müller, Udo Schwingenschlögl, Ching Hua Lee, Martin Greiter, Laurens W. Molenkamp, Tobias Kießling, Ronny Thomale
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p L012041 (2023)
We observe a localized cnoidal (LCn) state in an electric circuit network. Its formation derives from the interplay of nonlinearity and the topology inherent to a Su-Schrieffer-Heeger (SSH) chain of inductors. Varicap diodes act as voltage-dependent
Externí odkaz:
https://doaj.org/article/c5785a18ef454457af75e426e017603b
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-10 (2022)
Abstract In classical and single-particle settings, non-trivial band topology always gives rise to robust boundary modes. For quantum many-body systems, however, multiple topological fermions are not always able to coexist, since Pauli exclusion prev
Externí odkaz:
https://doaj.org/article/bdd553bbc5984235b5d76b658a291c3e
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Even though exploiting skin-topological effects in topological insulators is attractive for topological switch design, current research has focused on theoretical demonstrations. Here, the authors experimentally demonstrate higher-order topological s
Externí odkaz:
https://doaj.org/article/89a357ceb39546ba981583370b430184