Symmetry-Induced Error Filtering in a Photonic Lieb Lattice

2021 ◽  
Vol 126 (11) ◽  
Author(s):  
Yi-Jun Chang ◽  
Yong-Heng Lu ◽  
Yao Wang ◽  
Xiao-Yun Xu ◽  
Wen-Hao Zhou ◽  
...  
Keyword(s):  
Lieb Lattice ◽  
Error Filtering

scholarly journals Modulational instability in a non-Kerr photonic Lieb lattice with metamaterials

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
A. K. Shafeeque Ali ◽  
Andrei I. Maimistov ◽  
K. Porsezian ◽  
A. Govindarajan ◽  
M. Lakshmanan
Keyword(s):  
Modulational Instability ◽  
Lieb Lattice

scholarly journals Exceptional points make an astroid in non-Hermitian Lieb lattice: Evolution and topological protection

2020 ◽  
Vol 102 (24) ◽  
Author(s):  
Yi-Xin Xiao ◽  
Kun Ding ◽  
Ruo-Yang Zhang ◽  
Zhi Hong Hang ◽  
C. T. Chan
Keyword(s):  
Exceptional Points ◽  
Lieb Lattice

scholarly journals Superconducting mechanism for the cuprate Ba2CuO3+δ based on a multiorbital Lieb lattice model

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Kimihiro Yamazaki ◽  
Masayuki Ochi ◽  
Daisuke Ogura ◽  
Kazuhiko Kuroki ◽  
Hiroshi Eisaki ◽  
...  
Keyword(s):  
Lattice Model ◽  
Lieb Lattice

scholarly journals Orientation-Constrained System for Lamp Detection in Buildings Based on Computer Vision

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1516 ◽  
Author(s):  
Francisco Troncoso-Pastoriza ◽  
Pablo Eguía-Oller ◽  
Rebeca Díaz-Redondo ◽  
Enrique Granada-Álvarez ◽  
Aitor Erkoreka
Keyword(s):  
Computer Vision ◽  
Optimization Methods ◽  
Geometric Information ◽  
Constrained System ◽  
Building Information Modelling ◽  
Correct Model ◽  
Reprojection Error ◽  
Localization Errors ◽  
Building Information ◽  
Error Filtering

Computer vision is used in this work to detect lighting elements in buildings with the goal of improving the accuracy of previous methods to provide a precise inventory of the location and state of lamps. Using the framework developed in our previous works, we introduce two new modifications to enhance the system: first, a constraint on the orientation of the detected poses in the optimization methods for both the initial and the refined estimates based on the geometric information of the building information modelling (BIM) model; second, an additional reprojection error filtering step to discard the erroneous poses introduced with the orientation restrictions, keeping the identification and localization errors low while greatly increasing the number of detections. These enhancements are tested in five different case studies with more than 30,000 images, with results showing improvements in the number of detections, the percentage of correct model and state identifications, and the distance between detections and reference positions.

scholarly journals Geometric Origin of Superfluidity in the Lieb-Lattice Flat Band

2016 ◽  
Vol 117 (4) ◽  
Author(s):  
Aleksi Julku ◽  
Sebastiano Peotta ◽  
Tuomas I. Vanhala ◽  
Dong-Hee Kim ◽  
Päivi Törmä
Keyword(s):  
Flat Band ◽  
Geometric Origin ◽  
Lieb Lattice

Error filtering in the NF-FF transformation with cylindrical scanning

2004 ◽  
Author(s):  
Flaminio Ferrara ◽  
Claudio Gennarelli ◽  
Marcello Iacone ◽  
Giovanni Riccio ◽  
Catello Savarese
Keyword(s):  
Error Filtering

scholarly journals Competition between the Soft Gap and the Molecular Kondo Singlets in Flat-band Lattices

2018 ◽  
Vol 28 (4) ◽  
pp. 361 ◽  
Author(s):  
Bo Duong Nguyen ◽  
Son Hong Nguyen ◽  
Tien Minh Tran
Keyword(s):  
Renormalization Group ◽  
Strong Coupling ◽  
Kondo Effect ◽  
Magnetic Impurity ◽  
Local Moment ◽  
Flat Band ◽  
Numerical Renormalization Group ◽  
Kondo Problem ◽  
Conduction Electrons ◽  
Lieb Lattice

The Kondo problem of a magnetic impurity embedded in the Lieb lattice is studied by the numerical renormalization group. The magnetic impurity hybridizes with conduction electrons from both the flat- and the soft-gap bands. We find a competition between the soft gap and the molecular Kondo singlet formations. The molecular Kondo effect occurs only when the magnetic impurity strongly hybridizes with conduction electrons at edge center sites of the Lieb lattice, and at the temperature range between the artificial strong coupling and the local moment regimes.

scholarly journals Spin-Orbit Coupling Effects on Transport Properties of Electronic Lieb Lattice in the Presence of Magnetic Field

2021 ◽  
Author(s):  
Elham Sadeghi ◽  
Hamed Rezania
Keyword(s):  
Magnetic Field ◽  
Thermal Conductivity ◽  
Seebeck Coefficient ◽  
Temperature Dependence ◽  
Transport Properties ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Lieb Lattice ◽  
Thermal Conductivities

Abstract In this paper, the transport properties of a two-dimensional Lieb lattice that is a line-centered square lattice are investigated in the presence of magnetic field and spin-orbit coupling. Specially, we address the temperature dependence of electrical and thermal conductivities as well as Seebeck coefficient due to spin-orbit interaction. We have exploited Green’s function approach in order to study thermoelectric and transport properties of Lieb lattice in the context of Kane-Mele model Hamiltonian. The results for Seebeck coefficient show the sign of thermopower is positive in the presence of spin-orbit coupling. Also the temperature dependence of transport properties indicates that the increase of spin-orbit coupling leads to decrease thermal conductivity however the decrease of gap 1 parameter causes the reduction of thermal conductivity. There is a peak in temperature dependence of thermal conductivity for all values of magnetic fields and spin-orbit coupling strengths. Both electrical and thermal conductivities increase with increasing the temperature at low amounts of temperature due to the increasing of transition rate of charge carriers and excitation of them to the conduction bands. Also we have studied the temperature dependence of spin susceptibility of Lieb monolayer due to both spin orbit coupling and magnetic field factors in details.

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