Results 111 to 120 of about 1,141,086 (166)

Atomically resolved wavefunction of integer and fractional quantum anomalous Hall states in twisted bilayer graphene

open access: yesNature Communications
Moiré superlattices formed by stacking two-dimensional crystals offer a powerful platform for exploring strongly correlated and topological quantum phenomena. However, the absence of microscopic insights has long hindered a comprehensive understanding of
Yingzhuo Han   +8 more
doaj   +1 more source

Viscous Maxwell-Chern-Simons theory for topological electromagnetic phases of matter

open access: yes, 2019
We present the fundamental model of a topological electromagnetic phase of matter: viscous Maxwell-Chern-Simons theory. Our model applies to a quantum Hall fluids with viscosity. We solve both continuum and lattice regularized systems to demonstrate that
Zubin Jacob (1686070)   +1 more
core   +1 more source

Observation of Berry curvature in non-Hermitian system from far-field radiation

open access: yesNature Communications
Berry curvature that describes local geometrical properties of energy bands can elucidate many fascinating phenomena in solid-state, photonic, and phononic systems, given its connection to global topological invariants such as the Chern number.
Xuefan Yin   +5 more
doaj   +1 more source

Ohio Historical Center Doughboy statue

open access: yes, 1970
This statue of a World War I American soldier by sculptor Bruce Wilder Saville sits on the lawn of the Ohio History Center in Columbus, Ohio. Saville, a professor at The Ohio State University, cast the scuplture, named "The Victorius Doughboy" in 1924 to
Ohio History Connection
core  

The Levi-Civita connection and Chern connections for cocycle deformations of Kähler manifolds

open access: yesJournal of Geometry and Physics
We consider unitary cocycle deformations of covariant $\ast$-differential calculi. We prove that complex structures, holomorphic bimodules and Chern connections on the deformed calculus are twists of their untwisted counterparts. Moreover, for cocycle deformations of a class of classical Kähler manifolds, the Levi-Civita connection on the space of one ...
Jyotishman Bhowmick, Bappa Ghosh
openaire   +2 more sources

On the Lebesgue integral and the Lebesgue measure: mathematical applications in some sectors of Chern-Simons theory and Yang-Mills gauge theory and mathematical connections with some sectors of String Theory and Number Theory [PDF]

open access: yes, 2010
In this paper, in the Section 1, we have described some equations and theorems concerning the Lebesgue integral and the Lebesgue measure. In the Section 2, we have described the possible mathematical applications, of Lebesgue integration, in some ...
Nardelli, Michele
core   +1 more source

Narain CFTs from quantum codes and their $${\mathbb{Z}}_{2}$$ gauging

open access: yesJournal of High Energy Physics
We investigate the gauging of a $${\mathbb{Z}}_{2}$$ symmetry in Narain conformal field theories (CFTs) constructed from qudit stabilizer codes. Considering both orbifold and fermionization, we establish a connection between $${\mathbb{Z}}_{2}$$ gauging ...
Kohki Kawabata   +2 more
doaj   +1 more source

Ohio History Center Dedication Ceremony photograph

open access: yes, 1970
This 9.5" x 6.5" (24.13 x 16.51cm) photograph of the dedication of the Ohio History Center, the new home of the Ohio Historical Society (now the Ohio History Connection), was taken on August 23, 1970.
Ohio History Connection
core  

Flat extensions of principal connections and the Chern–Simons 3-form

open access: yesAnnales Henri Lebesgue
We introduce the notion of a flat extension of a connection θ on a principal bundle. Roughly speaking, θ admits a flat ...
Čap, Andreas   +2 more
openaire   +3 more sources

Children on steps of Ohio History Center

open access: yes, 1970
This photograph of children on the steps of the Ohio History Center was taken around 1970. At a press conference held in November 10, 1964, Governor James Rhodes announced financing for the construction of a new archives, library, and museum building ...
Ohio History Connection
core  

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