Sub-Hz fundamental, sub-kHz integral linewidth self-injection locked 780 nm hybrid integrated laser

Breakthrough in Compact Quantum Laser Technology

UC Santa Barbara researchers have developed a breakthrough in laser technology: a compact, chip-scale laser that matches or exceeds the performance of much larger laboratory systems while being significantly more affordable. Led by Professor Daniel […]

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Breakthrough in Quantum Teleportation

Northwestern University engineers have accomplished a significant feat by successfully demonstrating quantum teleportation through fiber optic cables while simultaneously carrying regular Internet traffic. Led by Professor Prem Kumar, the team published their findings in Optica […]

A new design for a superconducting quantum processor.

Breaking the Grid: A Modular Quantum Computing Revolution

Researchers at the University of Chicago’s Pritzker School of Molecular Engineering have developed a groundbreaking quantum processor design that challenges traditional computational architectures. Unlike conventional quantum chips that arrange qubits in rigid 2D grids, this […]

The pattern of quantum scars captured in the lab of physics professor Jairo Velasco,

Quantum Control: Mapping the Predictable Paths of Electrons

Researchers at UC Santa Cruz have experimentally validated a 40-year-old theoretical prediction about electron behavior in confined spaces, marking a significant breakthrough in quantum physics. Led by physicist Jairo Velasco, Jr., the team’s study published […]

Researchers in Bernien Lab, including graduate students Noah Glachman (left) and Shankar Menon, have discovered how to combine two powerful technologies—trapped atom arrays and photonic devices—to yield advanced systems for quantum computing, simulation, and networking.

Scalable Quantum Computing with Integrated Atom-Photonic Systems

This groundbreaking research by University of Chicago scientists presents a transformative approach to quantum computing by ingeniously merging trapped atom arrays with photonic devices. Led by Assistant Professor Hannes Bernien, the research team has developed […]

(From left) Prof Gao Weibo, Dr Lyu Xiaodan, Prof Liu Zheng and PhD student Leevi Kallioniemi are part of the NTU Singapore team that found a new way to produce entangled pairs of photons with very thin materials.

How to Shrink Quantum Computer Components by 1,000x

Researchers at Nanyang Technological University in Singapore (NTU), have developed an innovative method to produce entangled photon pairs using extraordinarily thin materials, potentially revolutionizing quantum computing technology. Led by Prof Gao Weibo, the team successfully […]

A comparative illustration of GCIM and VQE on a two-electron four-spin-orbital system.

Quantum chemistry using constrained optimization

Hybrid quantum-classical approaches offer potential solutions to quantum chemistry problems, yet they often manifest as constrained optimization problems. Scientists have explored the interconnection between constrained optimization and generalized eigenvalue problems through the Unitary Coupled Cluster […]

The contraction of three-point function from two-point hadron propagators and glue operators. The different colors represent different contributions from the grid points of the source.

Subatomic Mass: Trace Anomaly Reveals Particle Structure

Nuclear physicists have made a significant breakthrough in understanding the mass distribution within subatomic particles, specifically pions and protons, through advanced numerical calculations that leverage the trace anomaly in spacetime. The research focuses on exploring […]

A Quantum Leaky Integrate-and-Fire (QLIF) neuron processing input spike stimuli.

A Quantum Leaky Integrate-and-Fire (QLIF) Neuron

Quantum Machine Learning (QML) is in a period of rapid development and discovery, however it still lacks the resources and diversity of computational models of its classical complement. With the growing difficulties of classical models […]

A study co-directed by Professor Roberto Morandotti of Institut national de la recherche scientifique (INRS) in collaboration with teams from Germany, Italy, and Japan opens the door to cutting-edge solutions that could contribute to the realization of a system capable of processing quantum information in a simple yet powerful way.

Quantum Walks: Unlocking New Dimensions of Light

Researchers at the Institut National de la Recherche Scientifique (INRS), Canada, have achieved a groundbreaking advancement in quantum photonics, developing a synthetic photonic lattice that can generate and manipulate quantum states of light. Led by […]

Orbital Angular Momentum Quantum-based VQE – Hydrogen (H2) Molecule / A quantum processing device based on orbital angular momentum qubit states is implemented by using spatial light modulators. The ground state energy of a H2 molecular model based is estimated on VQE.

AI and Quantum Computing Revolutionize Molecular Science

The landscape of scientific research is rapidly transforming through groundbreaking advancements in artificial intelligence and quantum computing, with recent developments promising revolutionary impacts across multiple disciplines. The Nobel Prize in Chemistry has recognized the pivotal […]

Schematic quantum circuits and devices.

Quantum Computer Information Loss

npj Quantum Information, Published online: 26 November 2024; doi:10.1038/s41534-024-00918-6 Quantum computing platforms are subject to contradictory engineering requirements: qubits must be protected from mutual interactions when idling (‘doing nothing’), and strongly interacting when in operation. […]

or the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue illuminating laser beam, creating a matching region in the illuminating light and creating a darker area that appears as a shadow of the green laser beam. Credit: R. A. Abrahao, H. P. N. Morin, J. T. R. Pagé, A. Safari, R. W. Boyd, J. S. Lundeen

Lasers That Can Block Light Itself

Light, being massless, casts no shadow; under ordinary circumstances, photons pass right through each other unimpeded. Researchers, in the Department of Physics at uOttawa, along with the Boyd Research Group, have demonstrated a laser beam […]

Unlocking the Nano Universe: A Quantum Leap in Magnetic Imaging

A Quantum Leap in Magnetic Imaging

Researchers from Martin Luther University Halle-Wittenberg (MLU) and the Max Planck Institute of Microstructure Physics in Halle have developed a groundbreaking method to analyze magnetic nanostructures with exceptional precision. This technique achieves a resolution of […]

Intensity distribution for (a) the (5, 0, 4) and (b) the (8, 0, 3) pseudomodes plotted as function of 0 < r < 1.5     μ m and θ . The resonator surface is at r = 1 .

Quantum Essence: First Visualization of Photon Shape

Quantum physicists at the University of Birmingham have achieved a groundbreaking advancement in understanding photons, successfully defining their precise shape and interaction with surrounding environments for the first time. Published in Physical Review Letters, this […]

Novel Quantum States of Exciton–Floquet Composites: Electron–Hole Entanglement and Information

Unprecedented Real-Time Capture of Quantum Information

Korean researchers from DGIST and UNIST have achieved a significant breakthrough in quantum information technology by discovering a novel quantum state called the exciton-Floquet synthesis state. The collaborative research team, led by Professor Jaedong Lee […]

The chain complex relevant to the distance balancing construction.

Local testability of distance-balanced quantum codes

npj Quantum Information, Published online: 20 November 2024; doi:10.1038/s41534-024-00908-8 In this paper, scientists proved a lower bound on the soundness of quantum locally testable codes under the distance balancing construction of Evra et al. Their […]

The multi-particle ‘which-path’ experiment: implementations in double-slit setups, with analog quantum circuit representations.

Many-body entanglement via ‘which-path’ information

npj Quantum Information, Published online: 21 November 2024; doi:10.1038/s41534-024-00899-6 Researchers propose a multi-particle ‘which-path’ gedanken experiment with a quantum detector. Contrary to conventional ‘which-path’ experiments, the detector maintains its quantum state during interactions with the […]

Graph-based diagonalization circuit.

Hardware-tailored diagonalization circuits

npj Quantum Information, Published online: 21 November 2024; doi:10.1038/s41534-024-00901-1 A central building block of many quantum algorithms is the diagonalization of Pauli operators. Although it is always possible to construct a quantum circuit that simultaneously […]