Shanghai Jiao Tong University

Construction of Multi-Rate QC-LDPC Codes Based on Permutation Method

This paper proposes a systematic permutation-based construction method for multi-rate quasi-cyclic low-density parity-check (QC-LDPC) codes. We first present a graph-theoretic framework in which any regular QC-LDPC code can be normalized to a canonical base matrix that is uniquel...

An engineered metal-to-insulator transition in a two-dimensional network of degenerate phosphorus quantum dots in silicon

Phosphorus quantum dots (QDs) in silicon are a prominent candidate for semiconductor quantum computing based on donor spins. In this work, we report the formation of degenerate phosphorus QDs with a radius of 3 nm confined in a two-dimensional plane in silicon. A multilayer of Si...

Robust field-free superconducting diode effect in FeTe0.55Se0.45

The superconducting diode effect (SDE), a nonreciprocal phenomenon where the critical supercurrent differs depending on the direction of current flow, is a promising foundation for superconducting logic and memory. Realizing its full potential requires a diode that operates witho...

Elastic anomalies enabled by lattice distortion in high entropy alloys

Abstract Elastic anomalies, such as the Elinvar effect, large recoverable elastic strain, and nonlinear superelasticity, offer significant potential for engineering applications. High entropy alloys (HEAs) have recently emerged as a model system for investigating such unconventio...

A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network

ABSTRACT Quantum key distribution (QKD) provides an information‐theoretic security framework for building QKD networks (QNs). However, existing QN architectures face critical challenges: trusted‐node‐based designs inherently expose relay nodes to physical compromise, while entang...

Low temperature selective catalytic oxidation of ammonia reaction (NH3-SCO): Introducing Co, or Zr to improve comprehensive performance of the Ag/Al2O3 catalyst.

oxidation pathway.

Dynamic expression of IL-21 in effector CD8 T cells helps control chronic infections

CD8 T cells are critical players in immune responses against pathogens. Interleukin-21 (IL-21) is predominantly produced by CD4 T cells and exerts multifaceted effects on CD8 T cell regulation and function. Using Il21 -reporter and Il21 –fate mapping mice, we report that a subpop...

A game-theoretic attack-defense framework for the study of network resilience

The rapid evolution of communication technologies and the Internet of Things has enhanced system interconnectivity, allowing localized disruptions to cascade into failures. Many such breakdowns are not purely accidental but emerge from intentional countermeasures that influence o...