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Condensed Matter Jan 24, 2024

What coffee with cream can teach us about quantum physics

Add a dash of creamer to your morning coffee, and clouds of white liquid will swirl around your cup. But give it a few seconds, and those swirls will disappear, leaving you with an ordinary mug of brown liquid.

Nanophysics Jan 18, 2024

Scientists create qubits using precision tools of nanotechnology

Silicon carbide is becoming a major player on the quantum scene. Widely used in specialized electronics goods such as LEDs and electric vehicles, silicon carbide boasts versatility, wide commercial availability, and growing ...

Condensed Matter Jan 17, 2024

Researchers find evidence of long-lived valley states in bilayer graphene quantum dots

In quantum computing, the question as to what physical system and which degrees of freedom within that system may be used to encode quantum bits of information—qubits, in short—is at the heart of many research projects ...

Quantum Physics Jan 15, 2024

Solid-state qubits: Forget about being clean, embrace mess

New findings debunk previous wisdom that solid-state qubits need to be super dilute in an ultra-clean material to achieve long lifetimes. Instead, cram lots of rare-earth ions into a crystal, and some will form pairs that ...

Condensed Matter Jan 11, 2024

Generating stable qubits at room temperature

A group of researchers reports that they have achieved quantum coherence at room temperature, which is the ability of a quantum system to maintain a well-defined state over time without getting affected by surrounding disturbances

Condensed Matter Jan 10, 2024

In novel quantum computer design, qubits use magnets to selectively communicate

Researchers have begun to use magnets to entangle qubits, the building blocks of quantum computers. This simple technique could unlock complex capabilities.

Optics & Photonics Jan 9, 2024

Quantum energy exchange: Exploring light fields and a quantum emitter

A new study in Physical Review Letters illuminates the intricacies of energy exchanges within bipartite quantum systems, offering profound insights into quantum coherence, pure dephasing effects, and the potential impact ...

General Physics Dec 27, 2023

A logical magic state with fidelity beyond distillation threshold realized on superconducting quantum processor

Quantum computers have the potential to outperform conventional computers on some tasks, including complex optimization problems. However, quantum computers are also vulnerable to noise, which can lead to computational errors.

Condensed Matter Dec 21, 2023

An advanced computational tool for understanding quantum materials

Researchers at the University of Chicago's Pritzker School of Molecular Engineering (PME), Argonne National Laboratory, and the University of Modena and Reggio Emilia have developed a new computational tool to describe how ...

Quantum Physics Dec 21, 2023

Researchers take a different approach with measurement-based quantum computing

The race to develop quantum computers has really heated up over the past few years. State-of-the-art systems can now run simple algorithms using dozens of qubits—or quantum bits—which are the building blocks of quantum ...

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