MIT researchers developed a photon-shuttling “interconnect” that can facilitate remote entanglement, a key step toward a practical quantum computer.

Recently, researchers from the University of Science and Technology of China (USTC) reveals that not all forms of quantum nonlocality guarantee intrinsic randomness. They demonstrated that violating two-input Bell inequalities is both necessary and sufficient for certifying randomness, but this equivalence breaks down in scenarios involving multiple inputs. This finding has been published in Physical Review Letters.

Researchers from Tohoku University and St. Paul's School, London, have developed a new algorithm that allows quantum computers to analyze and protect quantum entanglement -- a fundamental underpinning of quantum computing. These findings contribute to advancing our understanding of quantum entanglement and quantum technologies.

Scientists at the Universities of Basel and Cologne have revealed a key superconducting effect in topological insulator nanowires. Their findings bring topological insulator nanowires closer to serving as the foundation for stable, next-generation quantum bits (qubits).

Physicists at the University of Cologne have taken an important step forward in the pursuit of topological quantum computing by demonstrating the first-ever observation of Crossed Andreev Reflection (CAR) in topological insulator (TI) nanowires. This finding, published under the title ‘Long-range crossed Andreev reflection in topological insulator nanowires proximitized by a superconductor’ in Nature Physics, deepens our understanding of superconducting effects in these materials, which is essential for realizing robust quantum bits (qubits) based on Majorana zero-modes in the TI platform — a major goal of the Cluster of Excellence ‘Matter and Light for Quantum Computing’ (ML4Q).

Electron transport in bilayer graphene exhibits a pronounced dependence on edge states and a nonlocal transport mechanism, according to a recent study led by Professor Gil-Ho Lee and Ph.D. candidate Hyeon-Woo Jeong of POSTECH’s Department of Physics, in collaboration with Dr. Kenji Watanabe and Dr. Takashi Taniguchi at Japan’s National Institute for Materials Science (NIMS). The findings were published in the international nanotechnology journal Nano Letters.

In a recent study published in Physical Review Letters, Dr. Manik Banik from the S. N. Bose National Centre for Basic Sciences, an autonomous institute of the Department of Science and Technology, along with collaborators from the Indian Statistical Institute Kolkata, A B N Seal College Cooch Behar, and the University of Hong Kong, demonstrated that a universal standard for measuring quantum nonlocality is impossible.

A research team led by Academician GUO Guangcan from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with the research team at the University of Turku, Finland, successfully overcame environmental noise to achieve high-fidelity quantum teleportation by utilizing multipartite hybrid entanglement.