**Here comes the world’s first ever multi-node quantum network**

There have already been many laboratory demonstrations, commonly using fibre optics, of a physical link between two quantum devices, but two nodes do not a network make. The greater the distance of travel, the more quantum devices and intermediary nodes can be…

# Tag: the researchers

the researchers

**Researchers confront major hurdle in quantum computing**

In one paper, the researchers demonstrated a route of transferring information between qubits, called adiabatic quantum state transfer (AQT), for the first time with electron-spin qubits. Quantum computers, on the other hand, are based on quantum bits, also known as qubits, which can be…

**Shaped light waves penetrate further into photonic crystals – Physics World**

New functionalities should be possible, however, if light can be controllably steered anywhere inside the crystals, beyond the depth set by Bragg interference. They began by directing unstructured, random, plane light waves onto the crystals and imaging the light that…

**Researchers take a step towards achieving topological qubits in graphene**

Researchers from Spain, Finland and France have demonstrated that magnetism and superconductivity can coexist in graphene, opening a path towards graphene-based topological qubits. However, designing and controlling topological qubits has remained a problem, largely due to the difficulty of finding materials…

**Aalto University: A path to graphene topological qubits**

In particular, by carefully controlling Yu-Shiba-Rusinov states, topological superconductivity and Majorana states can be created. However, the coexistence of magnetism and superconductivity has remained elusive in graphene, despite long-standing experimental efforts that demonstrated the existence of these two states independently. In particular, topological…

**A path to graphene topological qubits**

However, designing and controlling topological qubits has remained a critically open problem, ultimately due to the difficulty of finding materials capable of hosting these states, such as topological superconductors. In particular, by carefully controlling Yu-Shiba-Rusinov states, topological superconductivity and Majorana states can be created. However,…

**A two-qubit engine powered by entanglement and local measurements**

>, one can deterministically extract a quantum of energy from it, dubbed a photon,” Auffèves said. In addition, their study could open up an entirely new field of research, which they suggest could be called “quantum energetics.” “We specifically considered the creation…

**Building a Fault-Tolerant Quantum Computer, The Amazon Way**

The research provides a full-stack analysis of a fault-tolerant quantum architecture based on cat codes concatenated with outer quantum error-correcting codes. The researchers presented a comprehensive architectural analysis for a fault-tolerant quantum computer based on cat codes concatenated with outer quantum error-correcting codes….

**A student’s physics project could make quantum computers twice as reliable**

So far, only two computers have reached “quantum supremacy,” or the ability to complete a quantum calculation faster than the fastest supercomputer. But neither of those computers used error correction codes that will be necessary to scale up quantum computing…

**Physicists solve centuries-old brachistochrone problem for complex quantum operations – Physics World**

The work, which is detailed in Physical Review X, has implications for quantum computing, Alberti says. These variations, or “wiggling”, effectively cancelled out the effects of the transitions to the several intermediate states the atom had to go through…