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893 papers · 1 filter
Spectrally pure photon pair generation in asymmetric heterogeneously coupled waveguides
Xiangyan Ding, Jing Ma, Liying Tan +2
In this work, we develop a design methodology to generate spectrally pure photon pairs in asymmetric heterogeneously coupled waveguides by spontaneous parametric down-conversion. M…
Wavelength Conversion Efficiency Enhancement in Modal Phase Matched Nonlinear Waveguides
Dongpeng Kang, Weiqi Zhang, Amr S. Helmy +3
Modal phase matching (MPM) is a widely used phase matching technique in AlGaAs and other nonlinear waveguides for efficient wavelength conversions. The use of…
Loeb Extension and Loeb Equivalence II
Duanmu Haosui, David Schrittesser, William Weiss
The paper answers two open questions that were raised in by Keisler and Sun. The first question asks, if we have two Loeb equivalent spaces and $(Ω, \mathcal G…
Unbiased Gradient Estimation in Unrolled Computation Graphs with Persistent Evolution Strategies
Paul Vicol, Luke Metz, Jascha Sohl-Dickstein
Unrolled computation graphs arise in many scenarios, including training RNNs, tuning hyperparameters through unrolled optimization, and training learned optimizers. Current approac…
VibEmoji: Exploring User-authoring Multi-modal Emoticons in Social Communication
Pengcheng An, Ziqi Zhou, Qing Liu +4
Emoticons are indispensable in online communications. With users' growing needs for more customized and expressive emoticons, recent messaging applications begin to support (limite…
On the bundle of KMS state spaces for flows on a Z-absorbing C*-algebra
George A. Elliott, Yasuhiko Sato, Klaus Thomsen
We obtain three results: 1) Every compact simplex bundle with exactly one point in the fiber over 0 is the KMS bundle of a periodic flow on the Jiang-Su algebra. 2) Let A be a sepa…