Search results for single-qubit

Optics & Photonics May 15, 2023

Forming and sensing optical emitters in real time

Seeking new techniques to enable quantum networking, Harvard University researchers have developed a novel laser-based strategy for creating single-atom, near-surface material defects, which can be used to form qubits, the ...

Quantum Physics May 11, 2023

Jellybeans: A sweet solution for overcrowded circuitry in quantum computer chips

The silicon microchips of future quantum computers will be packed with millions, if not billions of qubits—the basic units of quantum information—to solve the greatest problems facing humanity. And with millions of qubits ...

Condensed Matter May 8, 2023

Symmetric graphene quantum dots for future qubits

Quantum dots in semiconductors such as silicon or gallium arsenide have long been considered hot candidates for hosting quantum bits in future quantum processors. Scientists at Forschungszentrum Jülich and RWTH Aachen University ...

Optics & Photonics May 1, 2023

Differing device personalities come together for future quantum computing networks

We're building the tools to trap ions and watch them glow (or not). The art-deco-esque device shown above is a combined trap for ions (charged atoms) and detector for individual photons (particles of light). When you hold ...

Quantum Physics Apr 20, 2023

Heaviest Schrödinger cat achieved by putting a small crystal into a superposition of two oscillation states

Even if you are not a quantum physicist, you will most likely have heard of Schrödinger's famous cat. Erwin Schrödinger came up with the feline that can be alive and dead at the same time in a thought experiment in 1935. ...

Quantum Physics Apr 20, 2023

Two qudits fully entangled

In the world of computing, we typically think of information as being stored as ones and zeros—also known as binary encoding. However, in our daily life we use ten digits to represent all possible numbers. In binary the ...

Optics & Photonics Apr 19, 2023

Long-distance quantum teleportation enabled by multiplexed quantum memories

Quantum teleportation is a technique allowing the transfer of quantum information between two distant quantum objects, a sender and a receiver, using a phenomenon called quantum entanglement as a resource.

Optics & Photonics Apr 17, 2023

Quantum light source goes fully on-chip, bringing scalability to the quantum cloud

An international team of researchers from Leibniz University Hannover (Germany), the University of Twente (Netherlands), and the start-up company QuiX Quantum has presented an entangled quantum light source fully integrated ...

Superconductivity Apr 13, 2023

New kind of quantum transport discovered in a device combining high-temperature superconductors and graphene

Developing new quantum devices relies on controlling how electrons behave. A material called graphene, a single layer of carbon atoms, has fascinated researchers in recent years because its electrons behave as if they have ...

Quantum Physics Apr 12, 2023

Physicists take step toward fault-tolerant quantum computing

Some classical computers have error correction built into their memories based on bits; quantum computers, to be workable in the future, will need error correction mechanisms, too, based on the vastly more sensitive qubits.

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