Now, a team of researchers from IESL FORTH, Dr. Theocharis Lamprou and Dr. Paraskevas Tzallas, and ICFO, Dr. Javier Rivera-Dean, Philipp Stammer and ICREA Prof. Maciej Lewenstein, has successfully addressed both issues. They created generalized coherent state superpositions (GCSS), verified their quantum nature and employed them to drive a nonlinear optical process (which, per se, is indicative of the high photon number and intensity of the states). Their findings, demonstrated both theoretically and experimentally, have been reported in Physical Review Letters.

In a recent breakthrough, scientists from Okayama University in Japan developed nanodiamond sensors bright enough for bioimaging, with spin properties comparable to those of bulk diamonds. The study, published in ACS Nano, on 16 December 2024, was led by Research Professor Masazumi Fujiwara from Okayama University, in collaboration with Sumitomo Electric Company and the National Institutes for Quantum Science and Technology.

WiMi Hologram Cloud Inc. ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR") Technology provider, today announced the research of a new quantum algorithm—the Holographic Quantum Linear Solver (HQLS), which aims to provide a more efficient and resource-efficient quantum algorithm for solving the Quantum Linear System Problem (QLSP). This algorithm is based on a combination of Variational Quantum Algorithms (VQA) and the classical shadow framework, overcoming the hardware resource bottlenecks of traditional quantum linear solver algorithms.

To address these challenges, Tohoku University's Dr. Le Bin Ho led a team that developed a multi-target quantum compilation algorithm. They published their new study in the journal Machine Learning: Science and Technology on December 5, 2024.

Quantum computer manufacturing specialist SDT, announced that it has successfully raised KRW 20 billion (USD 14 million) in a pre-IPO funding round. This achievement marks a significant milestone as the company accelerates its plans to become Korea’s first publicly listed quantum technology firm by the second half of 2025.

In the effort to develop new quantum technologies of the future, scientists are pursuing several different approaches. One avenue seeks to use molecules as the fundamental building blocks of quantum technologies. Now scientists at Caltech have figured out a new way to use ultrafast laser pulses to realize an important quantum mechanical property known as superposition, turning a relatively simple molecule into a quantum sensor—a tool that can measure chemical phenomena in its surroundings through inherently quantum means.

A team led by Prof. LU Zhengtian and Researcher XIA Tian from the University of Science and Technology of China (USTC) realized Schrödinger-cat state with minute-scale lifetime using optically trapped cold atoms, significantly enhancing the sensitivity of quantum metrology measurement. The study was published in Nature Photonics.

A research team led by Professor Chih-Sung Chuu of the Department of Physics and the Center for Quantum Technology at National Tsing Hua University (NTHU) in Taiwan has recently announced that it has successfully developed the world's smallest quantum computer---using only one photon. This is also the first optical quantum computer developed in Taiwan.

The research group led by Professor Luming Duan at the Institute for Interdisciplinary Information Sciences, Tsinghua University, made significant progress in the field of ion trap quantum simulation, observing for the first time the quantum superposition of topological defects in the experiment. The paper titled "Observation of quantum superposition of topological defects in a trapped ion quantum simulator" was recently published in Science Advances.

Quantum technologies exploit the unusual properties of the most fundamental building blocks of matter. They promise breakthroughs in communication, computing, sensors and much more. However, quantum states are fragile, and their effects are difficult to grasp, making research into real-world applications challenging. Empa researchers and their partners have now achieved a breakthrough: Using a kind of “quantum Lego”, they have been able to accurately realize a well-known theoretical quantum physics model in a synthetic material.