Why you can’t tie knots in four dimensions

We can tie knots in three dimensions because one-dimensional ropes “catch on each other”. This is why a long rope wound around itself, if done right, won’t come apart. We trust knots with our lives ...
TMCnet

MicroCloud Hologram Inc. FPGA-Based High-Performance Surface Code Quantum Simulation Platform: Efficient Error Correction Algorithm Validation under Rotated Layout

MicroCloud Hologram Inc. (NASDAQ: HOLO), ("HOLO" or the "Company"), a technology service provider, has developed a surface code quantum simulator based on FPGA. This innovative technology marks a new ...
IEEE

Multi-Functional Optical Fiber Tweezers Based on Annular Aperture Array Metasurface

Abstract: We propose and demonstrate numerically a kind of optical fiber tweezer based on the annular aperture array (AAA) metasurface at the end of an annular core fiber to implement multi-functional ...
IEEE

Ray Antenna Array: A Novel Cost-Effective Multi-Antenna Architecture for Enhanced Wireless Communication

Abstract: This paper proposes a novel multi-antenna architecture, termed ray antenna array (RAA), which aims to enhance wireless communication performance in a cost-effective manner. RAA is composed ...
Morning Overview on MSN

Scientists grew mini brains and trained them to crack an engineering problem

Researchers at the University of California, Santa Cruz have trained lab-grown brain organoids to solve a goal-directed task, ...