Device-independent method certifies genuinely entangled subspaces in photonic and superconducting systems

Logical subspace and Quantum self-checking schematic. (Image by USTC). Credit: USTC In a study published in Reports on Progress in Physics, researchers have achieved device-independent characterization of genuinely entangled subspaces…

New relay architecture based on a quantum dot single-photon source enables secure communication across 300 km

85%) between single photons and coherent pulses, a critical requirement for reliable quantum relay operation. Credit: Nature Physics [DOI: 10.1038/s41567-025-03005-5.”>

Time crystals arise from quantum interactions once thought to prevent their formation

Correlations between quantum particles result in a rhythmic signal – without the need for an external beat to set the tempo. Credit: TU Wien Nature has many rhythms: the seasons…

Neutron detector mobilizes muons for nuclear, quantum material

Lead muon detector developer Polad Shikhaliev looks on as JungHyun Bae, a Wigner Distinguished Staff Fellow at ORNL, looks inside a muon detector he envisioned during his doctoral studies. Credit:…

Controlling electron interference in time with chirped laser pulses

Illustration of chirped laser-assisted dynamic interference. Credit: Federico Vismarra, ETH Zürich In quantum mechanics, particles such as electrons act like waves and can even interfere with themselves—a striking and counterintuitive…

Quantum scars boost electron transport and drive the development of microchips

The image depicts a quantum scar connected between conductors. It can be controlled using a so-called nanotip carrying an electric charge. Credit: Quantum Control and Dynamics research group, Tampere University…

‘Quantum squeezing’ a nanoscale particle for the first time

(Upper panel) Experimental time sequence to realize and observe quantum squeezing of a levitated nanoparticle. After cooling the center-of-mass motions, the researchers vary the laser intensity to deform the uncertainties…

Universal scheme efficiently generates arbitrary two-qubit gates in superconducting quantum processors

Single device amplifies signals while shielding qubits from unwanted noise

Optical micrograph of the traveling-wave parametric amplifier and converter chip. The periodic square structures along the central transmission line are Josephson junctions, while the larger rectangular structures are the capacitors…

Machine learning unravels quantum atomic vibrations in materials

Credit: Rosa Romano, EAS Communications/Caltech Caltech scientists have developed an artificial intelligence (AI)–based method that dramatically speeds up calculations of the quantum interactions that take place in materials. In new…