Rich Pang

2 months ago | science.org | Rich Pang |Megan McSweeney |Lu Chen |Dong Pan

AbstractQuantum communication realizes information-theoretic security using photonic quantum states, for example, quantum secure direct communication (QSDC), which can achieve secure and reliable communication in a channel with both noise and eavesdroppers. However, QSDC suffers from large losses and short communication distances, thus being impractical for applications. Here, we have proposed a one-way quasi-QSDC protocol with single photons.

2 months ago | science.org | Rich Pang |Megan McSweeney |Lu Chen |Ren Wang

AbstractThe ubiquitous occurrence of toroidal vortices, or vortex rings, in fluid dynamics scenarios in nature has garnered notable attention in the scientific community, while their electromagnetic counterparts have only been proposed recently with two distinct manifestations: vector toroidal pulses and scalar phase toroidal vortices.

2 months ago | science.org | Rich Pang |Megan McSweeney |Lu Chen |Ziqian Bai

AbstractGlycosylation chemistry plays a pivotal role in glycoscience. Recent substantial developments have poised the field to address emerging challenges related to sustainability, cost efficiency, and robust applicability in complex substrate settings. The transition from stoichiometric activation to metal-catalyzed methods promises enhanced chemoselectivity and greater precision in controlling glycosidic bond breakage and formation, key to overcoming existing obstacles.

2 months ago | science.org | Rich Pang |Megan McSweeney |Lu Chen

AbstractIn soft matter systems, there is a wealth of topological phenomena, such as singular disclination lines and nonsingular defects of skyrmions and hopfions. In a liquid crystal (LC), the topological nature of disclination lines and colloids induces chiral colloidal entanglements. How the chirality of the entanglements is deterministically created and how the chirality conversion is actuated in the disclinations with Möbius strip topology have never been explored.

2 months ago | science.org | Rich Pang |Megan McSweeney |Lu Chen |Suhyun Kim

AbstractTwo-dimensional (2D) materials are emerging as a promising platform for epitaxial growth, largely free from the constraints of lattice constant and thermal expansion coefficient mismatches. Among them, transition metal dichalcogenides (TMDs), known for their superior electrical properties, are ideal for ultrathin semiconductor applications.