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Search results for quantum entanglement

Optics & Photonics Sep 23, 2025

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

Quantum technologies are systems that can compute data, sense their surrounding environment or perform other functions leveraging quantum mechanical effects. Connecting these technologies over long distances has so far proved ...

Optics & Photonics Sep 22, 2025

Quantum memories reach new milestone with secure quantum money protocol

Integration into a quantum money protocol shows that memories can now handle very demanding applications for quantum networking.

Optics & Photonics Sep 22, 2025

New, improved 3,000-qubit neutral atom array system reloads atoms continuously for more than two hours

The neutral atom array architecture for quantum computing has been rapidly advancing over the last several years, and a recent study published in Nature has just revealed another step forward for this technology. The team ...

Quantum Âé¶¹ÒùÔºics Sep 19, 2025

A scalable and accurate tool to characterize entanglement in quantum processors

Quantum computers, computing systems that process information leveraging quantum mechanical effects, could soon outperform classical computers in various optimization and computational tasks.

Quantum Âé¶¹ÒùÔºics Sep 18, 2025

'Like talking on the telephone': Quantum computing engineers get atoms chatting long distance

UNSW engineers have made a significant advance in quantum computing: they created 'quantum entangled states'—where two separate particles become so deeply linked they no longer behave independently—using the spins of ...

Quantum Âé¶¹ÒùÔºics Sep 18, 2025

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

The operation of quantum computers, systems that process information leveraging quantum mechanical effects, relies on the implementation of quantum logic gates. These are essentially operations that manipulate qubits, units ...

Condensed Matter Sep 17, 2025

Conquering disorder: Modeling a solid with liquid-like ion movement

Copper selenide (Cuâ‚‚Se) attracts scientific interest for its thermoelectric ability to convert heat into electricity, but a lack of atomic-level understanding has limited its practical applications for decades.

Nanophysics Sep 17, 2025

Nanoscale optical device enables independent control of light intensity and phase using electricity

A nanoscale optical device has been developed that allows independent control over the intensity and phase of light. By applying voltage, this innovative device can freely manipulate the phase and magnitude of second-harmonic ...

Quantum Âé¶¹ÒùÔºics Sep 15, 2025

First-principles simulations reveal quantum entanglement in molecular polariton dynamics

This is what fun looks like for a particular set of theoretical chemists driven to solve extremely difficult problems: Deciding whether the electromagnetic fields in molecular polaritons should be treated classically or quantum ...

Optics & Photonics Sep 12, 2025

Measuring the quantum W state: Seeing a trio of entangled photons in one go

The concept of quantum entanglement is emblematic of the gap between classical and quantum physics. Referring to a situation in which it is impossible to describe the physics of each photon separately, this key characteristic ...

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