New type of optical quantum computers
Scientists at the Institute of Physics of the University of Tartu, Estonia have found a way to develop optical quantum computers of a new type, based on the discovery of Rare Earth Ions (REIs) that […]
Unusual quantum phenomena: Competition between magnetic orders
Researchers at the University of Bonn have used ultracold atoms to gain new insights into previously unknown quantum phenomena. They found out that the magnetic orders between two coupled thin films of atoms compete with each other.
Gentner-Kastler Prize 2021 for Nathalie Picqué
The DPG awards Nathalie Picqué with the 2021 Gentner-Kastler Prize for outstanding contributions to high-resolution broad-field molecular spectroscopy with frequency combs.
New state of matter in one-dimensional quantum gas
Researchers at Stanford University have developed a quantum version of Archimedes’ screw that, instead of water, hauls fragile collections of gas atoms to higher and higher energy states without collapsing. Most nonequilibrium, many-particle systems eventually […]
A single-quantum-dot heat valve
A team of researchers at University Grenoble Alpes and Centre of Excellence Quantum Technology has developed a single-quantum-dot heat valve. They have demonstrated gate control of electronic heat flow in a thermally biased single-quantum-dot junction.
Unexpected quantum behavior in insulators
Physicists at Princeton University have observed an unexpected quantum behavior in an insulator made from a material called tungsten ditelluride. This phenomenon, known as quantum oscillation, is typically observed in metals rather than insulators, and […]
Entangled error-protected qubits
Researchers from the University of Innsbruck have entangled two qubits distributed over several quantum objects and successfully transmitted their quantum properties.
Pivotal discovery in quantum and classical information processing
Researchers in the Argonne National Laboratory and Pritzker School of Molecular Engineering have demonstrated a novel approach that allows real-time control of the interactions between microwave photons and magnons, potentially leading to advances in electronic […]
World’s fastest optical neuromorphic processor
An international team of researchers led by Swinburne University of Technology has demonstrated the world’s fastest and most powerful optical neuromorphic processor for artificial intelligence (AI), which operates faster than 10 trillion operations per second (TeraOPs/s) and is capable of processing ultra-large scale data.
On-demand storage in integrated solid-state quantum memory
Researchers at the University of Science and Technology of China (USTC) have demonstrated on-demand storage of photonic qubits in an integrated solid-state quantum memory for the first time. On-demand storage requires determination of the storage time after […]
High-dimensional quantum teleportation
A team at the University of Science and Technology of China (USTC) has demonstrated the teleportation of high-dimensional states in a three-dimensional six-photon system. Compared with two-dimensional systems, high-dimensional system quantum networks have the advantages […]
Electrons entanglement using heat
A joint group of scientists has demonstrated that temperature difference can be used to entangle pairs of electrons in superconducting structures.
Experimental characterization of the energetics of quantum logic gates
Researchers at Universita degli Studi Roma Tre and University of Florence have characterized the energetic footprint of a two-qubit quantum gate from the perspective of non-equilibrium quantum thermodynamics.
Use of photonic structures for AI
A team of researchers has examined the potential of photonic processors for artificial intelligence applications.
Connecting qubits via a cryogenic link
ETH Zurich researchers demonstrated a high-fidelity quantum network by directly transmitting microwave-encoded qubit states between superconducting circuits 5 meters apart through an insulated waveguide, advancing modular quantum computing.
Liberating Quantum Processors from parasitic interactions
Creating perfect entanglement requires full control over all qubit-qubit interactions. Until now, this goal has been hindered by the presence of an always-on and fundamental parasitic interaction that disturbs entanglement. Now, researchers at Forschungszentrum Jülich […]
Quandela devices at the core of the Moscow Quantum Computer
Moscow State University in Russia is developing a quantum computer on an optical chip and aims to achieve 50 qubits using French startup Quandela’s technology. The highly efficient photonic quantum bit sources support Russian quantum […]
The next phase of the proton radius puzzle
Physicists at MPQ have tested quantum mechanics to a completely new level of precision using hydrogen spectroscopy, and in doing so they came much closer to solving the well-known proton charge radius puzzle, which is […]
Direct visualization of quantum dots reveals shape of quantum wave function
Trapping and controlling electrons in bilayer graphene quantum dots yields a promising platform for quantum information technologies. Researchers at UC Santa Cruz have now achieved the first direct visualization of quantum dots in bilayer graphene, […]
Solving optimization problems with Rydberg analog Quantum Computers
Platforms of Rydberg atoms have been proposed as promising candidates to solve some combinatorial NP-hard optimization problems. A team of scientists at Atos Quantum Lab has computed quantitative requirements on the system sizes and noise […]
Sensor experts invent supercool mini thermometer
Researchers at the National Institute of Standards and Technology (NIST) have invented a miniature thermometer with big potential applications such as monitoring the temperature of processor chips in superconductor-based quantum computers, which must stay cold […]
Reproducible manufacturing of quantum devices
A team led by University of New South Wales (UNSW) has found that removing random doping in quantum electronic devices dramatically improves their reproducibility. That is a key requirement for future applications such as quantum-information […]
Spatially entangled itinerant photons with waveguide quantum electrodynamics
Researchers at MIT EQuS Group have worked on the deterministic generation of a spatially entangled, two-photon N00N state with high fidelity using superconducting qubits in a waveguide QED architecture. Realizing a fully connected network of […]
Bedtime Reading: Quantifying Quantumness
Researchers have considered the question of what makes something “more quantum” than another: Is there a way to characterize “quantumness“? Large objects, such as baseballs, vehicles, and planets, behave in accordance with the classical laws […]
Scientists synthesize ‘bright’ quantum bits
A team of physicists and chemists at the University of Chicago and Northwestern University has developed a new method to create tailor-made qubits by chemically synthesizing molecules that encode quantum information into their magnetic spin states. The […]