Results 41 to 50 of about 2,356,486 (173)

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

Advanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith, Ryan D. McKenzie, Alban Joseph, Robert L. Stamps, Rair Macêdo   +4 more
wiley   +1 more source

A study on the detection of weathering in the Yungang Grottoes using non-Hermitian wireless sensing

AIP Advances
As a world cultural heritage, the Yungang Grottoes have been deeply affected by weathering and other damage. Detecting the degree of weathering in stone carvings is an important technical support for conserving stone cultural relics.
Yong Dong, LiJuan Dong, XianYu Shen
doaj   +1 more source

Evolution of Physical Intelligence Across Scales

Advanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu, Tianyun Huang, Aming Li, Pengyu Lv, Tingting Qin, Wenhui Chen, Hui Wei, Huiling Duan   +7 more
wiley   +1 more source

Computing Hermitian determinantal representations of hyperbolic curves [PDF]

International Journal of Algebra and Computation, 2015
Every real hyperbolic form in three variables can be realized as the determinant of a linear net of Hermitian matrices containing a positive definite matrix. Such representations are an algebraic certificate for the hyperbolicity of the polynomial and their existence has been proved in several different ways.
Daniel Plaumann, Rainer Sinn, David E Speyer, Cynthia Vinzant   +3 more
openaire   +2 more sources

Entropic interpretation of Einstein equation in dS/CFT

Journal of High Energy Physics
In this paper, we demonstrate that the first law of holographic pseudo-entropy, which is a non-Hermitian generalization of entanglement entropy in a two-dimensional conformal field theory (CFT), is equivalent to the perturbative Einstein equation in ...
Kosei Fujiki, Michitaka Kohara, Kotaro Shinmyo, Yu-ki Suzuki, Tadashi Takayanagi   +4 more
doaj   +1 more source

Overcoming the Phase Discontinuity Problem in RIS Optimization: A Robust and Scalable Phase‐Aware Deep Regression Framework via Hybrid CNN–LSTM Architecture

Advanced Intelligent Systems, EarlyView.
The phase discontinuity problem—where the cyclic nature of phase angles causes catastrophic errors near the ±π boundary—is a fundamental obstacle in learning‐based reconfigurable intelligent surface (RIS) optimization. A phase‐aware hybrid CNN–LSTM framework resolves this by decomposing phase predictions into sine–cosine components, mapping circular ...
Seda Savaşçı Şen, Ali Çalhan, Murtaza Cicioğlu, Oğuzhan Demiryürek   +3 more
wiley   +1 more source

Eigenvalue and pseudospectrum processes generated by nonnormal Toeplitz matrices with rank 1 perturbations

International Journal of Mathematics for Industry
We introduce two kinds of matrix-valued dynamical processes generated by nonnormal Toeplitz matrices with the additive rank 1 perturbations [Formula: see text], where [Formula: see text] and J is the all-ones matrix. For each process, first we report the
Saori Morimoto, Makoto Katori, Tomoyuki Shirai   +2 more
doaj   +1 more source

Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces

Laser &Photonics Reviews, EarlyView.
Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley   +1 more source

Localization and mobility edges in non-Hermitian continuous quasiperiodic systems

New Journal of Physics
The mobility edge (ME) is a critical concept in Anderson localized systems, which marks the boundary between extended and localized states. Although the ME and localization phenomena have been extensively investigated in non-Hermitian (NH) quasiperiodic ...
Xiang-Ping Jiang, Zhende Liu, Yayun Hu, Hongsheng Hou, Lei Pan   +4 more
doaj   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source