Results 81 to 90 of about 1,641,940 (221)
On exotic consistent anomalies in (1+1)$d$: A ghost story
SciPost Physics, 2021 We revisit 't Hooft anomalies in (1+1)$d$ non-spin quantum field theory, starting from the consistency and locality conditions, and find that consistent U(1) and gravitational anomalies cannot always be canceled by properly quantized (2+1)$d$ classical ...
Chi-Ming Chang, Ying-Hsuan Lin
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The Hitchin-Witten Connection and Complex Quantum Chern-Simons Theory
, 2014 We give a direct calculation of the curvature of the Hitchin connection, in geometric quantization on a symplectic manifold, using only differential geometric techniques. In particular, we establish that the curvature acts as a first-order operator on the quantum spaces.
Jørgen Ellegaard Andersen +1 more
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Flat connections in three-manifolds and classical Chern–Simons invariant
Nuclear Physics B, 2017 26 pages, 13 ...
E. Guadagnini +2 more
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Cosmological time and the constants of nature
Physics Letters B, 2021 We propose that cosmological time is effectively the conjugate of the constants of nature. Different definitions of time arise, with the most relevant related to the constant controlling the dynamics in each epoch. The Hamiltonian constraint then becomes
João Magueijo
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Chern classes of vector bundles with holomorphic connections on a complete smooth complex variety [PDF]
Journal of Differential Geometry, 1992 See the preview in Zbl 0728.14016.
Hélène Esnault, V. Srinivas
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Advanced Functional Materials, EarlyView.From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang +8 more
wiley +1 more source
Advances in Topological Thermoelectrics: Harnessing Quantum Materials for Energy Applications
Advanced Materials, EarlyView.Topological materials offer a novel platform for thermoelectric energy conversion through unique band features, including band inversion, linear Dirac bands, surface states, and Berry curvature. These quantum characteristics enable enhanced longitudinal and transverse thermoelectric effects, establishing topological thermoelectrics as a promising ...
Guangsai Yang +8 more
wiley +1 more source
On Weil homomorphism in locally free sheaves over structured spaces
Demonstratio Mathematica, 2017 Inspired by the work of Heller and Sasin [1], we construct in this paper Weil homomorphism in a locally free sheaf W of ϕ-fields [2] over a structured space.
Falkiewicz Ewa, Sasin Wiesław
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$SO/Sp$ Chern-Simons Gauge Theories At Large $N$, $SO/Sp$ Penner Models And The Gauge Group Volumes
, 2012 We construct a deformed $SO/Sp$ Penner generating function responsible for the close connection between $SO/Sp$ Chern-Simons gauge theories at large $N$ and the $SO/Sp$ Penner models.
Chair, Noureddine, Dalabeeh, Mohammad
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Topological Singularities and Edge‐State Coupling Enable Robust on‐Chip Slow Light
Advanced Science, EarlyView.This work demonstrates the first experimental observation of a topological quantum‐interference‐like effect in a 1D on‐chip system, utilizing two topological mechanisms for robust slow light. Topological charges ensure immunity to parameter deviations, while edge states provide robustness against disturbances.
Yuqian Wang +6 more
wiley +1 more source