Results 71 to 80 of about 63,478 (260)
Phase‐Space Generalized Brillouin Zone For Spatially Inhomogeneous Non‐Hermitian Systems
Advanced Science, EarlyView.A novel phase‐space generalized Brillouin zone (GBZ) framework to devised captures the interplay of spatial inhomogeneity and non‐local non‐Hermitian effects. This reveals new degrees of freedom such as jumps in the bifurcated GBZ, as well as new routes for topological protection, with potential applications in characterizing inhomogeneous or ...
Qingya Li, Hui Jiang, Ching Hua Lee
wiley +1 more source
Mathematics, 2020 We study the local commutation relation between the Lefschetz operator and the exterior differential on an almost complex manifold with a compatible metric.
Joana Cirici, Scott O. Wilson
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D-Branes in Para-Hermitian Geometries
Universe, 2022 We introduce T-duality invariant versions of D-branes in doubled geometry using a global covariant framework based on para-Hermitian geometry and metric algebroids.
Vincenzo Emilio Marotta +1 more
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Moyal products -- a new perspective on quasi-hermitian quantum mechanics
, 2006 The rationale for introducing non-hermitian Hamiltonians and other observables is reviewed and open issues identified. We present a new approach based on Moyal products to compute the metric for quasi-hermitian systems.
Barrett B R +16 more
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Advanced Science, EarlyView.A switchable bidirectional acoustic metastructure is proposed, enabling broadband and frequency‐selective absorption via interleaved resonator coupling and exceptional point modulation. It outperforms traditional unidirectional designs, offering compact, efficient sound control from both directions and establishing a generalized framework for extending
Zichao Guo +7 more
wiley +1 more source
Sasakian quiver gauge theories and instantons on cones over round and squashed seven-spheres
Nuclear Physics B, 2019 We study quiver gauge theories on the round and squashed seven-spheres, and orbifolds thereof. They arise by imposing G-equivariance on the homogeneous space G/H=SU(4)/SU(3) endowed with its Sasaki-Einstein structure, and G/H=Sp(2)/Sp(1) as a 3-Sasakian ...
Jakob C. Geipel +3 more
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The Continuity Equation, Hermitian Metrics and Elliptic Bundles [PDF]
The Journal of Geometric Analysis, 2019 We extend the continuity equation of La Nave-Tian to Hermitian metrics and establish its interval of maximal existence. The equation is closely related to the Chern-Ricci flow, and we illustrate this in the case of elliptic bundles over a curve of genus at least two.
Ben Weinkove, Morgan Sherman
openaire +3 more sources
Advanced Science, EarlyView.An unambiguous quantum state discrimination for two nonorthogonal states is demonstrated using a single ion. By implementing a non‐Hermitian Hamiltonian with parity‐time‐reversal (PT) symmetry, two candidate states evolve with different speed and become orthogonal at specific time, hence can be discriminated unambiguously. Experiments are performed for
Chenhao Zhu +5 more
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Non-Hermitian Quantum Mechanics with Minimal Length Uncertainty
Symmetry, Integrability and Geometry: Methods and Applications, 2009 We study non-Hermitian quantum mechanics in the presence of a minimal length. In particular we obtain exact solutions of a non-Hermitian displaced harmonic oscillator and the Swanson model with minimal length uncertainty.
T.K. Jana, P. Roy
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Connections on non-symmetric (generalized) Riemannian manifold and gravity
, 2015 Connections with (skew-symmetric) torsion on non-symmetric Riemannian manifold satisfying the Einstein metricity condition (NGT with torsion) are considered.
Ivanov, Stefan, Zlatanovic, Milan
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