Effect of trap states, ion migration and interfaces on carrier transport
in single crystal, polycrystalline and thick film devices of halide
perovskites CH3NH3PbX3 (X= I, Br, Cl)
April 25, 2023
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Physics
Applied Physics
Applied Physics
The understanding of the mixed ionic-electronic nature of charge transport in
Metal Halide Perovskites (MHPs) and the role of morphological and interface
defects is crucial for improving the performance of MHP based photovoltaic
devices. We...
Gravitational Lensing of Massive Particles in the Charged NUT Spacetime
April 25, 2023
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Physics
General Relativity and Quantum Cosmology
General Relativity and Quantum Cosmology
In astronomy, gravitational lensing of light leads to the formation of
multiple images, arcs, Einstein rings, and, most important, the shadow of black
holes. Analogously in the vicinity of a massive compact object massive
particles, followi...
Restriction type estimates on general two-step stratified Lie groups
April 25, 2023
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Mathematics
Analysis of PDEs
Functional Analysis
Analysis of PDEs
Functional Analysis
We prove restriction type estimates for sub-Laplacians on general two-step
stratified Lie groups. The core of our approach is to use spectral cluster
estimates to effectively control the eigenvalue distribution of a family of
anisotropic tw...
The Score-Difference Flow for Implicit Generative Modeling
April 25, 2023
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Computer Science
Statistics
Machine Learning
Machine Learning
Machine Learning
Machine Learning
Implicit generative modeling (IGM) aims to produce samples of synthetic data
matching the characteristics of a target data distribution. Recent work (e.g.
score-matching networks, diffusion models) has approached the IGM problem from
the pe...
More about the cofinality and the covering of the ideal of strong
measure zero sets
April 25, 2023
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Mathematics
Logic
Logic
We improve the previous work of Yorioka and the first author about the
combinatorics of the ideal SN of strong measure zero sets of reals.
We refine the notions of dominating systems of the first author and introduce
the new com...
Fluctuations of random Motzkin paths II
April 25, 2023
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Mathematics
Probability
Probability
We compute limit fluctuations of random Motzkin paths with arbitrary
end-points as the length of the path tends to infinity....
Multi-Speaker Multi-Lingual VQTTS System for LIMMITS 2023 Challenge
April 25, 2023
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Computer Science
Electrical Engineering and Systems Science
Sound
Audio and Speech Processing
Sound
Audio and Speech Processing
In this paper, we describe the systems developed by the SJTU X-LANCE team for
LIMMITS 2023 Challenge, and we mainly focus on the winning system on
naturalness for track 1. The aim of this challenge is to build a multi-speaker
multi-lingual ...
Topological expansion of unitary integrals and maps
April 25, 2023
Mathematics
Probability
In this article, we study integrals on the unitary group with respect to the
Haar measure. We give a combinatorial interpretation in terms of maps of the
asymptotic topological expansion, established previously by Guionnet and Novak.
The ma...
Scalar curvature comparison of rotationally symmetric sets
April 25, 2023
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Mathematics
Differential Geometry
Let (M,g) be a compact 3-manifold with nonnegative scalar curvature
Rg≥0. The boundary ∂M is diffeomorphic to the boundary of a
rotationally symmetric and weakly convex body Mˉ in R3. We
call $(\bar{M}...
Filtrations on quantum cohomology from the Floer theory of
C∗-actions
April 25, 2023
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Mathematics
Symplectic Geometry
Algebraic Geometry
Differential Geometry
Representation Theory
We construct a filtration by ideals on quantum cohomology for symplectic
manifolds with a Hamiltonian S1-action that extends to a pseudoholomorphic
C∗-action. These spaces include all Conical Symplectic Resolutions,
in partic...